Field of the Invention
[0001] The invention relates to a cleaning composition with enhanced cleaning activity and
to the use for cleaning of hard and soft surfaces. In particular, the invention relates
to a liquid alkaline cleaning composition useful in the cleaning of all kinds of articles
or surfaces.
Background of the Invention
[0002] Many commercial and domestic articles, facilities and devices needs effective cleaning.
Such articles, facilities and devices are known to those skilled in a variety of occupations
or domestic activities, particularly those working in industrial plants, beverage
and food industry, hospitals, maintenance and repair services, manufacturing facilities,
kitchens, restaurants, vehicle cleaning and the like.
[0003] Aqueous alkali cleaners are known as effective cleaning agents. However, many such
alkali cleaners have disadvantages when used for automated cleaning processing due
to the formation of foam, thus requires the content of additional foam inhibiting
agents, which make the composition more complex. The formation of foam lowers the
cleaning properties, due to the loss of mechanical agitation. Further, pumping of
foam dramatically reduce the liquid flow rates, thus causes dosing and transport problems
in the sump, liquid conduits, as well as in the dispensing drawer. Thus, foam is not
acceptable in an automated cleaning process, such as automated washer.
[0004] US 2003/176305 A1 refers to an alkaline sensitive metal cleaning composition containing an alkaline
concentrate and a corrosion inhibitor concentrate. The alkaline concentrate includes
a source of alkalinity in an amount sufficient to provide a use solution having a
pH of at least 10.0, and a first chelant component that exhibits soil removal properties
when used at a pH of at least 10.0. The corrosion inhibitor concentrate includes a
corrosion inhibitor component for reducing corrosion of alkaline sensitive metals
when used in a use solution having a pH of at least 10.0, a second chelant component
for stabilizing the corrosion inhibitor in the corrosion inhibitor concentrate when
the corrosion inhibitor concentrate is provided at a pH that is less than 8.0, and
a surfactant component for providing cleaning properties when used at a pH of at least
10.0. A threshold inhibitor/crystal modifier can be provided in at least one of the
alkaline concentrate and the corrosion inhibitor concentrate to stabilize the corrosion
inhibitor in a use solution at a pH of at least 10.0.
[0005] US 2010/000579 A1 refers to a compositions for removing scale and/or inhibiting formation thereof including
an alkaline agent, a primary scale inhibitor, a secondary scale inhibitor and a solvent.
The primary scale inhibitor may include phosphonic acid, salts of phosphonic acids
and combinations thereof. Suitable secondary scale inhibitor may include aminocarboxylic
acids, salts of aminocarboxylic acids, carboxylic acids, salts of carboxylic acids,
polycarboxylic acids, salts of polycarboxylic acids, gluconic acids, salts of gluconic
acids, steroids, tetrapyrrols, ionophores, 2,2'-bipyridine, dimercaptopropanol, ortho-phenanthroline
and combinations thereof. The compositions may be prepared as a stable concentrates
that have pH values greater than or equal to 11. The compositions may also be prepared
on site as a use solution.
[0006] Many articles having a surface that requires cleaning contain an alkaline sensitive
surface, such as plastic or metal surfaces. Sensitive metal surfaces are aluminum
or aluminum containing alloys. Exemplary equipment having a surface containing an
alkaline sensitive metals include surgical, medical, and dental instruments, sinks,
cookware, utensils, machine parts, vehicles, tanker trucks, vehicle wheels, work surfaces,
tanks, immersion vessels, spray washers, and ultrasonic baths. Especially conveyer
bands, conduits, tanks and containers in the beverage and food industry. Aqueous alkali
cleaners are known as effective cleaning agents. However, many alkali cleaners have
disadvantages when used on alkaline sensitive hard and soft surfaces. A problem with
using aqueous alkali systems to clean alkaline sensitive hard and soft surfaces is
the potential to corrode and/or discolor.
[0007] Further, the amount of effective cleaning components of common cleaning compositions
is large dosed to provide an enhanced cleaning. Often, cleaning compositions are bulky
and having a high weight that causes transport, storing and handling problems.
[0008] Furthermore, the level of hardness in water can have a deleterious effect in many
systems. For example, when water is used in conjunction with cleaning compositions,
water hardness can cause precipitation of water scale or components of a cleaning
agent. In general, water hardness refers to water having a level of calcium and magnesium
ions. Although most locations have hard water, water hardness tends to vary from one
location to another. Precipitation of scale and/or corrosion of glass, porcelain,
ceramic and metal surfaces due to water hardness is a common problem in ware washing
and surface cleaning of soft and hard surfaces. Water hardness can be addressed in
a number of ways. For example, the water can be softened by replacing the calcium
and the magnesium present in the water with sodium. As a result, free calcium ions
may be available to attack active components of the composition, to cause corrosion
or precipitation, or other deleterious effects.
[0009] Another drawback is the residue of cleaning components on the cleaned surfaces.
[0010] It is still a need in prior art to provide a cleaning composition for hard and/or
soft surfaces that comprises a cleaning components with an enhanced cleaning effect
and allows simultaneously to lower the concentration of cleaning components to a minimum.
[0011] Further, it is a need to provide a cleaning composition for automated cleaning processing
of hard and soft surfaces that provides an improved cleaning effect, shows no foam
or practical no foam formation during the automated processing, and prevents corrosion
of sensitive surfaces that are exposed to the cleaning composition.
[0012] Another need is it to provide a cleaning composition that is less bulky but can easily
be transferred to the ready-to-use cleaning composition.
Summary of the Invention
[0013] The object of the present invention is to provide a cleaning composition for cleaning
of hard and/or soft surfaces that possesses an enhanced cleaning effect, shows practical
no foam formation during the cleaning processing, prevents corrosion of sensitive
surfaces that are exposed to the cleaning composition, having a remarkable low effective
cleaning component concentration of the ready-to-use cleaning composition, avoids
or significantly reduces precipitation of scale and overcomes the above mentioned
drawbacks.
[0014] Surprisingly it has been found that the use of a mixture of the 4 components a) to
d) can effectively be formulated and used as cleaning product with improved cleaning
and scaling behavior compared to the existing cleaners.
[0015] According to the present invention, a composition for cleaning is provided that comprises:
- a) two water-soluble biodegradable aminopolycarboxylate chelants of glutamic acid
N,N-diacetic acid and methylglycinediacetic acid;
- b) a gluconate;
- c) at least one sequestering agent of a phosphonate;
- d) at least one liquid conditioner polymer of monomers of water-soluble monoethylenically
unsaturated C3-C8-carboxylates and/or unsaturated C3-C8-carboxylic acids;
- e) at least one solvent; wherein the weight ratio of the gluconate and/or gluconic
acid to acid and/or salt of glutamic acid N,N-diacetic acid and methylglycinediacetic
acid is in the range from 1 : 1 to 1 : 5.
[0016] Depending on the pH value of the composition the components of the composition for
cleaning according to the invention can be present in the form of an acid and/or as
a salt thereof. It should be understood that an alkaline solution comprises the components
of the composition for cleaning in its salt form respectively to the pH value of the
solution. With respect to an acid solution of the composition for cleaning the components
are present in its acid form depending on the pH value.
[0017] The cleaning composition of the invention can be a cleaning solution. The cleaning
solution can be an alkaline cleaning solution. The alkaline cleaning solution can
be a concentrated cleaning solution. The concentrated alkaline solution can be further
diluted by admixing a solvent, preferably water. This diluted liquid alkaline composition
obtainable from the liquid alkaline concentrated composition of the invention is referred
to as "ready-to-use" solution.
[0018] The ratio of components is the weight ratio, if not otherwise indicated in the specification.
[0019] The formation of foam lowers in particular the cleaning properties, due to the loss
of mechanical agitation. Further, pumping of foam dramatically reduce the liquid flow
rates, thus causes dosing and transport problems in the sump, liquid conduits, as
well as in the dispensing drawer. Thus, foam may not being acceptable in an automated
cleaning process. It has surprisingly been found that the cleaning composition of
the invention is remarkably mild to sensitive hard and soft surfaces thus avoids corrosion;
it provides an improved cleaning effect and shows practically no foam formation during
the automated cleaning processing. Moreover, the concentration of the active cleaning
components is remarkably low but provides at the same time an enhanced cleaning result.
[0020] The "phrase" alkaline sensitive hard and/or soft surfaces" identifies those surfaces
that exhibit corrosion and/or discoloration when exposed to an alkaline solution.
[0021] Exemplary alkaline sensitive materials include plastic surfaces and metals such as
soft metals comprising aluminum, nickel, tin, zinc, copper, brass, bronze, and mixtures
thereof. Aluminum and aluminum alloys are common alkaline sensitive metals that can
be cleaned by the cleaning compositions of the invention.
[0022] Hard and/or soft surface can be metal surfaces and/or plastic surfaces. Metal surfaces
and/or plastic surfaces in need of cleaning are found in several locations. Exemplary
locations include surgical instruments, medical instruments, and dental instruments,
sinks, cookware, utensils, machine parts, vehicles, tanker trucks, vehicle wheels,
work surfaces, tanks, immersion vessels, spray washers, and ultrasonic baths.
[0023] The composition of the invention comprises at least two water-soluble aminopolycarboxylate
and/or aminopolycarboxylic acid chelants of glutamic acid N,N-diacetic acid and methylglycinediacetic
acid, wherein the weight ratio of the gluconate to the first water-soluble aminopolycarboxylate
and/or aminopolycarboxylic acid chelant is preferably in the range from 1 : 0.1 to
1 : 4; and the weight ratio of the gluconate to the second water-soluble aminopolycarboxylate
and/or aminopolycarboxylic acid chelant is preferably in the range from 1 : 0.1 to
1 : 4; and most preferably the first and second ratios are in the range from 1 : 0.2
to 1 : 2.
[0024] A composition for cleaning according to the present invention can be present in form
of a solution having a pH value in the range of ≥ 1 pH to ≤ 14 pH, preferably in the
range of ≥ 1.5 pH to ≤ 13.8 pH, further preferred in the range of ≥ 2 pH to ≤ 13.5
pH, also preferred in the range of ≥ 2.5 pH to ≤ 13.0 pH and in addition preferred
in the range of ≥ 3 pH to ≤ 12.9 pH.
[0025] A solvent, preferably water, can be added add. 100 wt.-% to the composition of the
invention. The solvent content, preferably water, of the composition according to
the invention is simply determined by subtracting the amounts of all the usual components
from 100 wt. %.
[0026] The weight amount (wt.-%) is calculated on the total weight amount of the composition
for cleaning, if not otherwise stated. The total weight amount of all components of
the composition for cleaning does not exceed 100 wt.-%.
[0027] It should be understood that the composition for cleaning of the invention can be
free of surfactant/s, such as nonionic tensides, anionic tensides, cationic tensides
and amphoteric tensides.
[0028] It should be understood that the composition for cleaning of the invention can be
free of a hydrotrope component.
[0029] It should be understood that the composition for cleaning of the invention can be
free of a phosphate.
[0030] It should be understood that the composition for cleaning of the invention can be
free of a corrosion inhibitor, such as mono silicate.
[0031] It should be understood that the composition for cleaning of the invention can be
free of at least one additive, preferably all additives, selected from the group of
dye, color transfer inhibitor, anti-redeposition agents, optical brighteners, builder,
oil and water repellant agents, foam inhibitor, color fastness agents, starch/sizing
agents, fabric softening agents, antimicrobials, fungicides, UV absorbers, thickeners,
oxidizers, fragrances and/or mixtures thereof.
[0032] The combination of an alkaline source in combination with a tenside leads to a foam
formation, thus not very suitable for use in an automated cleaning processing. However,
surfactants, such as nonionic tensides, anionic tensides, cationic tensides and amphoteric
tensides are known to have an improved cleaning effect.
[0033] Surprisingly, it has been found that the use of a composition comprising the components
a) to e) of the invention provides an excellent cleaning effect on hard and/or soft
surfaces.
[0034] Moreover, it has been found that the use of a composition comprising the components
a) to e) of the invention avoids or significantly reduces scale precipitation, such
as scale build up on cleaned hard and/or soft surfaces.
[0035] Tenside composition known in prior art provides a spontaneous foam formation in the
dispensing draw of an apparatus for cleaning processing as well as in the cleaning
chamber is observed. Further, nonionic tensides known to be of low foaming have a
tendency to degrade under alkaline conditions and results in an increased foam formation.
Further, if the weight ratio of the surfactant, such as nonionic tenside, anionic
tenside, cationic tenside and/or amphoteric tenside, is selected low to reduce foam
formation, the cleaning action is insufficient.
[0036] It has been found that the use of a composition with the components a) to e) of the
invention shows no foam formation when used for automated cleaning processing.
[0037] According to the present invention, a composition, preferably a liquid alkaline composition,
for cleaning comprising the components a) to e) having a good cleaning activity and
no tendency of foam formation can be used.
[0038] According to a preferred embodiment of the invention, the liquid alkaline composition
for cleaning may comprises:
- a) two water-soluble aminopolycarboxylate and/or aminopolycarboxylic acid chelants
of glutamic acid N,N-diacetic acid and methylglycinediacetic acid;
- b) a gluconate;
- c) at least one sequestering agent of a phosphonate;
- d) at least one liquid conditioner polymer of monomers of water-soluble monoethylenically
unsaturated C3-C8-carboxylates and/or unsaturated C3-C8-carboxylic acids;
- e) at least one solvent, preferably water;
- f) at least one alkaline source, preferably sodium hydroxide;
wherein the weight ratio gluconate to water-soluble aminopolycarboxylate and/or aminopolycarboxylic
acid is in the range from 1 : 1 to 1 : 5.
[0039] The weight ratio of alkaline source to the components a) to d) can be adjusted in
the range from 1 : 0.001 to 1 : 2, preferably 1 : 0.002 to 1 : 1.5, further preferred
1 : 0.003 to 1 : 1, and also preferred 1 : 0.0035 to 1 : 0.8.
[0040] According to a further preferred embodiment of the invention, the liquid alkaline
composition for cleaning may further comprise:
g) at least one corrosion inhibitor, preferably a disilicate.
[0041] The weight ratio of corrosion inhibitor to the components a) to d) can be adjusted
in the range from 0.000004 : 1 to 1 : 1, preferably 0.00001 : 1 to 0.8 : 1, further
preferred 0.0001 : 1 to 0.6 : 1, and also preferred 0.001 : 1 to 0.4 : 1.
[0042] According to a further preferred embodiment of the invention, the liquid alkaline
composition for cleaning further comprise:
h) at least one tenside, preferably a nonionic tenside.
[0043] The weight ratio of tenside to the components a) to d) can be adjusted in the range
from 0.1 : 1 to 2 : 1, preferably 0.2 : 1 to 1.8 : 1, further preferred 0.3 : 1 to
1.6 : 1, and also preferred 0.4 : 1 to 1.4 : 1.
[0044] Due to none or marginal foam formation the automated pumping flow rate of water-dissolved
composition according to the present invention is not affected.
[0045] Further, the cleaning action of the liquid alkaline composition of the present invention
used in an automated washing process is surprisingly good, even when no surfactant
is used. Especially, grease soil can be cleaned with the cleaning composition of the
invention.
[0046] According to the invention, a preferred liquid composition comprises an acid or a
salt of methylglycine-N,N-diacetate, glutamic acid-N,N-diacetate, glutamic acid-N,N-diacetic
acid; the phosphonic acid and/or phosphonate sequestering agent is preferably 2-phosphonobutane-1,2,4-tricarboxylic
acid and/or 2-phosphonobutane-1,2,4-tricarboxylate; a preferred liquid conditioner
polymer is an acrylic acid polymer and/or acrylate polymer; a preferred source of
alkalinity is sodium hydroxide; and water is a preferred solvent. More preferred are
methylglycine-N,N-diacetic acid, glutamic acid-N,N-diacetic acid; gluconic acid; 2-phosphonobutane-1,2,4-tricarboxylic
acid; acrylic acid polymer; and water.
[0047] Most preferred is when the source of alkalinity is sodium hydroxide. A problem with
using aqueous alkali systems to clean for example plastic and metal surfaces, such
as aluminum surfaces, especially eloxadized aluminum, is the potential to corrode
and/or discolor. The liquid alkaline cleaning composition of the invention is surprisingly
extremely mild and reduces this effect to a minimum. However, depending on the pH-value
a corrosion inhibitor can be added, preferably to an alkaline composition.
[0048] A liquid composition for cleaning according to the present invention that is extremely
mild, that means that corrosion is reduced to a minimum, having an improved cleaning
effect with respect to hard and/or soft surfaces to be processed therewith, prevents
scale build up and has no tendency with respect to foam formation at processing can
be a liquid composition, preferably a liquid alkaline composition, that comprises:
- > 0 wt.-% to ≤ 26 wt.-%, preferably ≥ 0.04 wt.-% to ≤ 24 wt.-%, further preferred
≥ 0.4 wt.-% to ≤ 22 wt.-%, and more preferred ≥ 0.6 wt.-% to ≤ 20 wt.-%, of an acid
or a salt of methylglycine-N,N-diacetate and/or glutamic acid-N,N-diacetate;
- > 0 wt.-% to ≤ 20 wt.-%, preferably ≥ 0.25 wt.-% to ≤ 19 wt.-%, further preferred
≥ 0.5 wt.-% to ≤ 17.5 wt.-%, and more preferred ≥ 0.75 wt.-% to ≤ 15 wt.-%, of a salt
of gluconic acid;
- > 0 wt.-% to ≤ 32.5 wt.-%, preferably ≥ 0.05 wt.-% to ≤ 30 wt.-%, further preferred
≥ 0.25 wt.-% to ≤ 29 wt.-%, and more preferred ≥ 0.5 wt.-% to ≤ 27.5 wt.-%, of at
least one sequestering agent of a phosphonate and/or phosphonic acid, more preferred
an acid or a salt of 2-phosphonobutane-1,2,4-tricarboxylic acid;
- > 0 wt.-% to ≤ 13.5 wt.-%, preferably ≥ 0.045 wt.-% to ≤ 11.25 wt.-%, further preferred
≥ 0.225 wt.-% to ≤ 9 wt.-%, and more preferred ≥ 0.45 wt.-% to ≤ 15 wt.-%, of at least
one liquid conditioner polymer of monomers of water-soluble monoethylenically unsaturated
C3-C8-carboxylates and/or unsaturated C3-C8-carboxylic acid, preferably an acid or a salt of an acrylic polymer;
- ≥ 0 wt.-% to ≤ 20 wt.-%, preferably ≥ 1 wt.-% to ≤ 18 wt.-%, further preferred ≥ 1.5
wt.-% to ≤ 15 wt.-%, and more preferred ≥ 2 wt.-% to ≤ 12 wt.-%, of at least one source
of alkalinity, preferably sodium hydroxide;
- ≥ 0 wt.-% to ≤ 12 wt.-%, preferably ≥ 0.01 wt.-% to ≤ 10 wt.-%, further preferred
≥ 0.025 wt.-% to ≤ 9 wt.-%, and more preferred ≥ 0.03 wt.-% to ≤ 8 wt.-%, of at least
one corrosion inhibitor, preferably a disilicate;
- ≥ 0 wt.-% to ≤ 10 wt.-%, preferably ≥ 0.01 wt.-% to ≤ 9 wt.-%, further preferred ≥
0.1 wt.-% to ≤ 8.5 wt.-%, and more preferred ≥ 0.5 wt.-% to ≤ 8 wt.-%, of at least
one salt, preferably sodium chloride;
and a solvent, preferably water, is added add. 100 wt.-%; wherein the weight-% of
the components are based on the total weight of the composition.
[0049] Depending on the pH value components of the composition for cleaning according to
the invention can be present in the form of an acid and/or as a salt thereof.
[0050] The time of exposure to the cleaning surface, flow characteristics of the composition
of the invention as well as processing properties can be affected by adjusting the
viscosity of the composition for cleaning. Suitable components to use for adjusting
the viscosity of the composition for cleaning are water soluble polymers of monomers
of water-soluble monoethylenically unsaturated C
3-C
8-carboxylic acids and/or C
3-C
8-carboxylates.
[0051] According to a preferred embodiment of the invention, the composition for cleaning
can possess a viscosity range of from 0.9 to 500 mPas at 20° C measured at 5 and/or
50 revolutions per minute on a Brookfield RVT viscosimeter with a spindle 1.
[0052] The composition for cleaning can be a basis solution, a concentrated solution, or
a ready-to-use solution. Preferably, the composition can be an alkaline basis solution,
an alkaline concentrated solution, or an alkaline ready-to-use solution.
Basis composition for cleaning
[0053] Another object of the present invention is directed to a basis composition for cleaning
of hard and/or soft surfaces. The basis composition for cleaning comprises a reduced
number of components of the composition for cleaning of the invention. The basis composition
for cleaning of hard and/or soft surfaces possesses an enhanced cleaning effect, shows
no foam formation, prevents corrosion of sensitive surfaces that are exposed to the
cleaning composition, needs a significant low concentration of the effective cleaning
components to provide the enhanced cleaning effect as well as avoids or significantly
reduces precipitation of scale on the hard and soft surfaces cleaned therewith.
[0054] The basis composition for cleaning can be a liquid. The liquid basis composition
for cleaning can have a pH value in the range of ≥ 1 pH to ≤ 14 pH, preferably in
the range of ≥ 2 pH to ≤ 13.8 pH, further preferred in the range of ≥ 2.5 pH to ≤
13.5 pH, also preferred in the range of ≥ 2.8 pH to ≤ 12.5 pH and in addition preferred
in the range of ≥ 2.9 pH to ≤ 12 pH.
[0055] Preferably, the basis composition is an alkaline liquid composition, having a pH
value in the range of > 7 pH to ≤ 14 pH, preferably in the range of ≥ 8 pH to ≤ 14
pH, further preferred in the range of ≥ 9 pH to ≤ 14 pH, also preferred in the range
of ≥ 10 pH to ≤ 14 pH, in addition preferred in the range of ≥ 11 pH to ≤ 14 pH an
more preferred in the range of ≥ 12 pH to ≤ 14 pH.
[0056] According to an embodiment of the invention, the basis composition for cleaning can
comprise in addition to features a) to e) as defined above:
f) ≥ 0 wt.-% to ≤ 49.5 wt.-%, preferably ≥ 0.5 wt.-% to ≤ 47.5 wt.-%, further preferred
> 0.75 wt.-% to ≤ 45 wt.-%, and more preferred ≥ 1 wt.-% to ≤ 42.5 wt.-%, of at least
one source of alkalinity.
[0057] Depending on the pH value of the composition the components of the basis composition
for cleaning according to the invention can be present in the form of an acid and/or
as a salt thereof.
[0058] According to a preferred embodiment the basis composition for cleaning of the invention
may comprise a salt of a glutamic acid N, N-diacetic acid, a salt of a methylglycinediacetic
acid, a solvent, preferably water and a source of alkalinity, preferably sodium hydroxide.
[0059] According to a further preferred embodiment the basis composition for cleaning of
the invention may comprise a polyacrylic acid. The liquid basis composition for cleaning
according to the present invention is extremely mild, that means that corrosion is
reduced to a minimum, having an improved cleaning effect with respect to hard and/or
soft surfaces to be processed therewith, prevents scale build up and has no tendency
with respect to foam formation at processing that can comprise:
- > 0 wt.-% to ≤ 26 wt.-%, preferably ≥ 0.04 wt.-% to ≤ 24 wt.-%, further preferred
≥ 0.4 wt.-% to ≤ 22 wt.-%, and more preferred ≥ 0.6 wt.-% to ≤ 20 wt.-%, of two water-soluble
aminopolycarboxylate and/or aminopolycarboxylic acid chelants which are the salts
or acid forms of methylglycine-N,N-diacetate and/or glutamic acid-N,N-diacetate;
- > 0 wt.-% to ≤ 20 wt.-%, preferably ≥ 0.25 wt.-% to ≤ 19 wt.-%, further preferred
≥ 0.5 wt.-% to ≤ 17.5 wt.-%, and more preferred ≥ 0.75 wt.-% to ≤ 15 wt.-%, of an
acid or a salt of gluconic acid; - > 0 wt.-% to ≤ 32.5 wt.-%, preferably ≥ 0.05 wt.-%
to ≤ 30 wt.-%, further preferred ≥ 0.25 wt.-% to ≤ 29 wt.-%, and more preferred ≥
0.5 wt.-% to ≤ 27.5 wt.-%, of at least one sequestering agent of a phosphonate and/or
phosphonic acid, more preferred an acid or a salt of 2-phosphonobutane-1,2,4-tricarboxylic
acid;
- > 0 wt.-% to ≤ 13.5 wt.-%, preferably ≥ 0.045 wt.-% to ≤ 11.25 wt.-%, further preferred
≥ 0.225 wt.-% to ≤ 9 wt.-%, and more preferred ≥ 0.45 wt.-% to ≤ 15 wt.-%, at least
one liquid conditioner polymer of monomers of water-soluble monoethylenically unsaturated
C3-C8-carboxylates and/or unsaturated C3-C8-carboxylic acids, preferably an acid or a salt of an acrylic polymer;
- ≥ 0 wt.-% to ≤ 20 wt.-%, preferably ≥ 1 wt.-% to ≤ 18 wt.-%, further preferred ≥ 1.5
wt.-% to ≤ 15 wt.-%, and more preferred ≥ 2 wt.-% to ≤ 12 wt.-%, of at least one source
of alkalinity; and a solvent is added add. 100 wt.-%; wherein the weight-% of the
components are based on the total weight of the basis composition.
It should be understood that the basis composition for cleaning of the invention can
be free of additives, selected from the group of dye, color transfer inhibitor, anti-redeposition
agents, optical brighteners, builder, oil and water repellant agents, foam inhibitor,
color fastness agents, starch/sizing agents, fabric softening agents, antimicrobials,
fungicides, UV absorbers, thickeners, oxidizers, fragrances and/or mixtures thereof.
Concentrated solution
[0060] The concentrated solution can have a pH value in the range of ≥ 5 pH to ≤ 14 pH,
preferably in the range of ≥ 5.5 pH to ≤ 13,8 pH, further preferred in the range of
≥ 7 pH to ≤ 13,6 pH and also preferred in the range of ≥ 9 pH to ≤ 113,5 pH.
[0061] According to the invention a concentrated composition solution for cleaning, preferably
an alkaline concentrated composition solution for cleaning of the invention may comprise:
- > 0 wt.-% to ≤ 10 wt.-%, preferably ≥ 2x10-4 wt.-% to ≤ 9.60 wt.-%, further preferred ≥ 2x10-3 wt.-% to ≤ 8.80 wt.-%, and more preferred ≥ 3x10-3 wt.-% to ≤ 8.00 wt.-%, of two water-soluble aminopolycarboxylate and/or aminopolycarboxylic
acid chelants of an acid or a salt of methylglycine-N,N-diacetate and/or glutamic
acid-N,N-diacetate;
- > 0 wt.-% to ≤ 8.0 wt.-%, preferably ≥ 1.3x10-3 wt.-% to ≤ 7.6 wt.-%, further preferred ≥ 2.5x10-3 wt.-% to ≤ 7.0 wt.-%, and more preferred ≥ 0.037 wt.-% to ≤ 6.0 wt.-%, of an acid
or a salt of gluconic acid;
- > 0 wt.-% to ≤ 13.0 wt.-%, preferably ≥ 2.5x10-4 wt.-% to ≤ 12.0 wt.-%, further preferred ≥ 1.25x10-3 wt.-% to ≤ 11.6 wt.-%, and more preferred ≥ 2.5x10-3 wt.-% to ≤ 11.0 wt.-%, of at least one sequestering agent of a phosphonate and/or
phosphonic acid, more preferred an acid or a salt of 2-phosphonobutane-1,2,4-tricarboxylic
acid;
- > 0 wt.-% to ≤ 5.4 wt.-%, preferably ≥ 2.5x10-4 wt.-% to ≤ 4.5 wt.-%, further preferred ≥ 1.125x10-3 wt.-% to ≤ 3.6 wt.-%, and more preferred ≥ 2.5x10-3 wt.-% to ≤ 2.7 wt.-%, at least one liquid conditioner polymer of monomers of water-soluble
monoethylenically unsaturated C3-C8-carboxylates and/or unsaturated C3-C8-carboxylic acids, preferably an acid or a salt of an acrylic polymer;
- > 0 wt.-% to ≤ 49.5 wt.-%, preferably ≥ 0.5 wt.-% to ≤ 47.5 wt.-%, further preferred
≥ 0.75 wt.-% to ≤ 45 wt.-%, and more preferred ≥ 1 wt.-% to ≤ 42.5 wt.-%, of at least
one source of alkalinity, preferably sodium hydroxide;
- > 0 wt.-% to ≤ 4.8 wt.-%, preferably ≥ 5x10-5 wt.-% to ≤ 3.6 wt.-%, further preferred ≥ 1.25x10-4 wt.-% to ≤ 3.4 wt.-%, and more preferred ≥ 1.5x10-4 wt.-% to ≤ 3.2 wt.-%, of at least one corrosion inhibitor, preferably a disilicate;
- ≥ 0 wt.-% to ≤ 4.0 wt.-%, preferably ≥ 5x10-5 wt.-% to ≤ 3.6 wt.-%, further preferred ≥ 5x10-4 wt.-% to ≤ 3.4 wt.-%, and more preferred ≥ 2.5x10-3 wt.-% to ≤ 3.2 wt.-%, of at least one salt, preferably potassium iodide; and the
solvent is added add. 100 wt.-%; wherein the weight-% of the components are based
on the total weight of the composition.
[0062] Depending on the pH value of the concentrated composition the components of the concentrated
composition for cleaning according to the invention can be present in the form of
an acid and/or as a salt thereof.
Ready to use solution
[0063] The liquid ready-to-use composition, preferably an alkaline ready-to-use composition,
of the invention, can be obtained from the composition for cleaning of the invention,
from the basis composition and/or from the concentrated composition for cleaning of
the invention by adding additional solvent, preferably water, thereto. In the above
it is referred to a concentrated solution. However, it is clear for an expert, that
the ready to use solution can be obtained also from the composition for cleaning and/or
the basis solution.
[0064] It can be preferred that the ready-to-use solution is directly prepared at the place
of use. For example, the concentrated composition for cleaning of the invention is
filled into a storage tank of the cleaning apparatus. At the time of use, at least
a portion of the concentrated composition for cleaning of the invention is piped to
the place of use, such as the cleaning chamber or cleaning drum, wherein the concentrated
composition for cleaning of the invention is further diluted with a solvent, preferably
water, before or at the time, it arrives the place of use. For example, the concentrated
composition for cleaning of the invention can be diluted with additional solvent,
such as water, to obtain the ready-to-use solution, in a dispensing draw or dispensing
tank of a cleaning apparatus. However, the composition for cleaning of the invention
can be used without being diluted to a ready-to-use solution.
[0065] Using a concentrated solution, such as the composition for cleaning of the invention,
which is further diluted at the time of use has the advantage, that the concentrated
solution is less bulky compared to the more diluted ready-to-use solution. Thus, total
weight, transport volume as well as storage volume of the composition for cleaning
of the invention is reduced thus facilitates the handling for the user.
[0066] The cleaning compositions according to the invention can take the form of a single
concentrate or multiple concentrates that can be diluted and combined to provide a
ready-to-use solution, and as a ready-to-use solution that can be used to clean articles
having a plastic and/or metal surface.
[0067] In addition, the ready-to-use solution can be provided as a relatively dilute solution
that can be, without the addition of water, to provide an organic ready-to use solution,
for example an alcohol based ready-to use solution, that can be for cleaning applied
to articles having a metal surface, such as surgical, medical, and dental instruments.
[0068] As already mentioned before, it is advantageous to provide the composition for cleaning
of the invention as a concentrate and then to dilute the concentrate at the situs
of use in order to decrease transportation costs associated with transporting large
amounts of solvent, such as water.
[0069] The composition for cleaning of the invention and/or the ready-to-use solution obtained
there from can be used in an automated washing process for cleaning.
[0070] In order to obtain to provide the ready-to-use aqueous solution, additional solvent,
preferably water, can be added to further dilute the concentrated composition for
cleaning of the invention. Thus, the aqueous solution of the liquid alkaline composition
according to the present invention can be further diluted with a solvent to the desired
concentration of the ready-to-use solution, wherein the weight ratio for the dilution,
i.e. added solvent (weight) : liquid alkaline composition (weight), can be in the
range of from 800 : 1 to 1 : 1, preferably 700 : 1 to 10 : 1, further preferred 600
: 1 to 20 : 1, also preferred 550 : 1 to 30 : 1, more preferred 500 : 1 to 40 : 1,
in particular preferred 450 : 1 to 40 : 1, especially preferred 400 : 1 to 50 : 1,
and most preferred 350 : 1 to 60 : 1. However, the weight ratio for the dilution,
i.e. added solvent (weight) : liquid alkaline composition (weight), can be 340 : 1
to 70 : 1,335: 1 to 80 : 1,330: 1 to 90 : 1,325 : 1 to 100 : 1,320 : 1 to 110 : 1,320
: 1 to 120 : 1,310 : 1 to 130 : 1,300: 1 to 140 : 1,290 : 1 to 140 : 1,250 : 1 to
150 : 1.
[0071] However, it can be preferred that the ready-to-use solution is a ≥ 0.1 wt.-% to ≤
10.0 wt.-%, preferably ≥ 0.2 wt.-% to ≤ 9.0 wt.-%, further preferred ≥ 0.3 wt.-% to
≤ 8.0 wt.-%, also preferred ≥ 0.4 wt.-% to ≤ 7.0 wt.-%, ≥ 0.4 wt.-% to ≤ 6.0 wt.-%,
diluted solution of the concentrated composition for cleaning of the invention.
[0072] The ready to use solution of the invention can have a pH value in the range of ≥
7 pH to ≤ 14 pH, preferred in the range of ≥ 8 pH to ≤ 13,8 pH, further preferred
in the range of ≥ 9 pH to ≤ 13,6 pH, in addition preferred in the range of ≥ 10 pH
to ≤ 13,5 pH and also preferred in the range of ≥ 10.5 pH to ≤ 13,4 pH.
[0073] A ready to use solution for cleaning according to the invention, preferably a ready
to use alkaline composition solution for cleaning may comprise:
- > 0 wt.-% to ≤ 1.04 wt.-%, preferably ≥ 2x10-6 wt.-% to ≤ 0.96 wt.-%, further preferred ≥ 2x10-5 wt.-% to ≤ 0.88 wt.-%, and more preferred ≥ 3x10-5 wt.-% to ≤ 0.80 wt.-%, of two water-soluble aminopolycarboxylate and/or aminopolycarboxylic
acid chelants of an acid or a salt of methylglycine-N,N-diacetate and/or glutamic
acid-N,N-diacetate;
- > 0 wt.-% to ≤ 0.80 wt.-%, preferably ≥ 1.25x10-5 wt.-% to ≤ 0.76 wt.-%, further preferred ≥ 2.5x10-5 wt.-% to ≤ 0.70 wt.-%, and more preferred ≥ 3.75x10-5 wt.-% to ≤ 0.60 wt.-%, of an acid or a salt of gluconic acid;
- > 0 wt.-% to ≤ 1.30 wt.-%, preferably ≥ 2.5x10-6 wt.-% to ≤ 1.20 wt.-%, further preferred ≥ 1.25x10-5 wt.-% to ≤ 1.16 wt.-%, and more preferred ≥ 2.5x10-5 wt.-% to ≤ 1.10 wt.-%, of at least one sequestering agent of a phosphonate and/or
phosphonic acid, more preferred an acid or a salt of 2-phosphonobutane-1,2,4-tricarboxylic
acid;
- > 0 wt.-% to ≤ 0.54 wt.-%, preferably ≥ 2.5x10-6 wt.-% to ≤ 0.46 wt.-%, further preferred ≥ 1.25x10-5 wt.-% to ≤ 0.36 wt.-%, and more preferred ≥ 2.5x10-5 wt.-% to ≤ 0.27 wt.-%, of at least one liquid conditioner polymer of monomers of
water-soluble monoethylenically unsaturated C3-C8-carboxylates and/or unsaturated C3-C8-carboxylic acids, preferably an acid or a salt of an acrylic polymer;
- ≥ 0 wt.-% to ≤ 4.99 wt.-%, preferably ≥ 0.05 wt.-% to ≤ 47.5 wt.-%, further preferred
≥ 0.075 wt.-% to ≤ 4.50 wt.-%, and more preferred ≥ 0.10 wt.-% to ≤ 4.25 wt.-%, of
at least one source of alkalinity, preferably sodium hydroxide;
- > 0 wt.-% to ≤ 0.48 wt.-%, preferably ≥ 5x10-6 wt.-% to ≤ 0.36 wt.-%, further preferred ≥ 5x10-5 wt.-% to ≤ 0.34 wt.-%, and more preferred ≥ 2.5x10-4 wt.-% to ≤ 0.32 wt.-%, of at least one corrosion inhibitor, preferably a disilicate;
- > 0 wt.-% to ≤ 0.4 wt.-%, preferably ≥ 5x10-6 wt.-% to ≤ 0.36 wt.-%, further preferred ≥ 5x10-5 wt.-% to ≤ 0.34 wt.-%, and more preferred ≥ 2.5x10-4 wt.-% to ≤ 0.32 wt.-%, of at least one salt, preferably potassium iodide; and the
solvent is added add. 100 wt.-%; wherein the weight-% of the components are based
on the total weight of the composition.
[0074] Depending on the pH value of the ready to use solution the components of the ready
to use solution for cleaning according to the invention can be present in the form
of an acid and/or as a salt thereof.
Chelant
[0075] The liquid composition according to the present invention comprises the salt of or
the acid of glutamic acid N, N-diacetic acid, and of methylglycinediacetic; most preferred
are the tetrasodium salt of glutamatic acid N, N-diacetic acid and the trisodium salt
of methylglycinediacetic acid.
[0076] The composition for cleaning can comprise additional chelants known in prior art.
It should be understood that additional chelants can be omitted.
Additional Chelants
[0077] Additional chelants can be added to the composition for cleaning, the basis composition,
the concentrated composition and/or to the ready to use composition.
[0078] The additional chelant can be selected from the group of salts, preferably sodium
salts, of diethylenetriamine pentaacetic acid, sodium glucoheptonic acid, salts of
ethylene diamine tetraacetic acid, salts of hydroxyethyl ethylene diamine triacetic
acid, salts of nitrilotriacetic acid, diethanolglycine sodium salt, ethanoldiglycine
disodium salt, salts of hydroxymonocarboxylic acid compounds, salts of hydroxydicarboxylic
acid compounds, salts of amine containing carboxylic acids, and mixtures thereof,
preferably the chelant is selected from the group of salts of nitrilotriacetic acid
(NTA), salts of ethylene diamine tetraacetic acid,the corresponding acid form and
mixtures thereof, most preferred as salt is a sodium salt.
[0079] Depending on the pH value of the solution of the cleaning composition of the invention
the chelant can be present in its acid form.
[0080] In particular preferred is at least one chelant that exhibits soil removal properties
when used at a pH of at least 10.0. The chelant can be provided for tying up metals
in the soil to assist in cleaning and detergency. The chelant can be provided as part
of the liquid alkaline composition. Exemplary chelants that exhibit soil removal properties
at a pH of greater than 10.0 that can be used according to the invention include sodium
gluconate, pentasodium salt of diethylenetriamine pentaacetic acid (available under
the name Versenex 80), sodium glucoheptonate, ethylene diamine tetraacetic acid (EDTA),
salts of ethylene diamine tetraacetic acid, hydroxyethyl ethylene diamine triacetic
acid (HEDTA), salts of hydroxyethyl ethylene diamine triacetic acid, nitrilotriacetic
acid (NTA), salts of nitrilotriacetic acid, diethanolglycine sodium salt (DEG), ethanoldiglycine
disodium salt (EDG), and mixtures thereof. Exemplary salts of ethylene diamine tetraacetic
acid include disodium salts, tetrasodium salts, diammonium salts, and trisodium salts.
An exemplary salt of hydroxyethyl ethylene diamine triacetic acid is the trisodium
salt. More preferred the chelant can be selected from the group comprising salts of
phosphonocarboxylic acids, salts of 1-hydroxyethylidene -1,1,-diphosphonic acid (HEDP),
salts of glucoheptonic acid, salts of nitrilotriacetic acid, salts of diethanolglycine,
salts of ethanoldiglycinic acid, salts of hydroxylmonocarboxylic acid, salts of hydroxydicarboxylic
acid, the corresponding acid form and mixtures thereof, most preferred as salt is
the sodium salt.
Alkaline Source
[0081] The source of alkalinity can be any source of alkalinity that is compatible with
the other components of the cleaning composition and that will provide the use solution,
i.e. solution as well as the ready-to-use solution with the desired pH. Exemplary
sources of alkalinity include alkali metal hydroxides, alkali metal salts, phosphates,
amines, and mixtures thereof.
[0082] Exemplary alkali metal hydroxides include sodium hydroxide, potassium hydroxide,
and lithium hydroxide.
[0083] Exemplary alkali metal salts include sodium carbonate, trisodium phosphate, potassium
carbonate, and mixtures thereof.
[0084] Exemplary phosphates include sodium pyrophosphate, potassium pyrophosphate, and mixtures
thereof.
Exemplary amines include alkanolamine selected from the group comprising triethanolamine,
monoethanolamine, diethanolamine, and mixtures thereof.
[0085] The source of alkalinity, preferably an alkali metal hydroxide, may be added to the
composition in a variety of forms, dissolved in an aqueous solution or a combination
thereof. Alkali metal hydroxides are commercially available as pellets or beads having
a mix of particle sizes ranging from 12-100 U. S. mesh, or as an aqueous solution,
as for example, as a 45 wt. %, 50 wt. % and a 73 wt. % solution.
Corrosion Inhibitor
[0086] It has been found that the use of disilicates in the composition of the invention
compared to monosilcates avoids deposit as well as deposit corrosion inside a cleaning
chamber of an automated cleaning apparatus, even after a high number of cleaning processes
and on the surface of articles processed therein. The deposit can be a colored residue
that remains preferably on surfaces inside the cleaning chamber. The use of disilicates
in the composition for cleaning of the invention overcomes this drawback. In particular,
if the composition for cleaning of the invention is free of a surfactant. Thus, it
can be preferred that the composition of the invention comprises at least one disilicate.
[0087] However, the composition for cleaning of the invention is surprisingly mild and remarkable
minimizes a corrosion effect to cleaned hard and soft surfaces. It should be understood
that corrosion inhibitors can be omitted.
[0088] Mono silicates, comprising sodium mono silicate, have a tendency to begin precipitating
from aqueous solution at a pH below 11, thus reducing its effectiveness to prevent
corrosion of the contacted surfaces when used in liquid, preferably aqueous, alkaline
cleaning solutions having a lower pH. Additionally, when mono silicates are allowed
to dry on the surface to be cleaned, films or spots are often formed, which are visible
and which are themselves very difficult to remove. The presence of these mono silicate-containing
deposits can affect the texture of the cleaned surface, the appearance of the surface,
and on cooking or storage surfaces, can affect the taste of the materials that come
into contact with the cleaned surfaces. Therefore, it can be preferred that the liquid
alkaline composition of the present invention is free of mono silicates.
[0089] It has been found that the use of disilicates in the composition of the invention
compared to monosilcates avoids deposit as well as deposit corrosion inside a cleaning
chamber of an automated cleaning apparatus, even after a high number of cleaning processes
and on the surface of articles processed therein. The deposit can be a colored residue
that remains preferably on surfaces inside the cleaning chamber. The use of disilicates
in the composition for cleaning of the invention overcomes this drawback. In particular,
if the composition for cleaning of the invention is free of a surfactant. Thus, it
can be preferred that the composition of the invention comprises at least one disilicate.
[0090] Therefore, a disilicate(s) corrosion inhibitor can be preferably used in composition
of the invention. Preferably, the composition according to the present invention is
a liquid composition or a liquid alkaline composition. A disilicate is a silicate
compound that has two silicon atoms in the molecule.
[0091] The disilicate(s) corrosion inhibitor can be an alkali disilicate, particularly preferably
crystalline or amorphous alkali disilicates .
[0092] Suitable disilicates can have the formula NaMSi
xO
22x+1.yH
2O. Crystalline, layered silicates of the above formula, in which x stands for 2, are
particularly suitable for the purposes of the present invention. Na-SKS-5 (alpha -Na2Si2O5),
Na-SKS-7 (beta -Na2Si2O5, Natrosilit), Na-SKS-9 (NaHSi2O5.H2O), Na-SKS-10 (NaHSi2O5.3H2O,
Kanemit), Na-SKS-11 (t-Na2Si205) and Na-SKS-13 (NaHSi2O5) are most notably suitable,
particularly Na-SKS-6 (delta -Na2Si2O5). In the context of the present application,
silicates can comprise a content by weight of crystalline layered silicates of formula
NaMSixO2x+1.yH2O of 0.1 to 20 wt. %, preferably 0.2 to 15 wt. % and particularly 0.4
to 10 wt. %, each based on the total weight of the corrosion inhibitor agent.
[0093] Particularly preferred are especially those that can have a total silicate content
≥ 1 and ≤ 7 wt.-%, advantageously below 6 wt.- %, preferably below 5 wt.- %, particularly
preferably below 4 wt.- %, quite particularly preferably below 3 wt. -% and especially
below 2.5 wt.- %, wherein this silicate, based on the total weight of the comprised
silicate, is advantageously at least 70 wt.- %, preferably at least 80 wt.- % and
especially at least 90 wt.- % of a silicate of the general formula NaMSixO2x+1.yH2O.
It should be understood that a silicate(s) corrosion inhibitor that have a total silicate
content of < 2 and/or > 2 is optional and can be omitted.
[0094] More preferred is that the composition for cleaning may comprise at least one corrosion
inhibitor selected from the group comprising silicate, sodium silicate, calcium acetate,
calcium chloride, calcium gluconate, calcium phosphate, calcium borate, calcium carbonate,
calcium citrate, calcium lactate, calcium sulfate, calcium tartrate, benzotriazole,
1,2,3-benzotriazole and mixtures thereof.
[0095] In particular, a heterocyclic compound, preferably a triazole derivate can be used
as corrosion inhibitor. The triazole derivate can be selected from the group comprising
benzotriazole, 1,2,3-benzotriazole and mixtures thereof.
[0096] The composition for cleaning can comprise at least one corrosion inhibitor. It should
be understood that a corrosion inhibitor can be omitted.
Salts
[0097] However, salts can be suitable added to the composition for cleaning of the invention.
The components that can be added to the composition for cleaning, the concentrated
solution and/or ready to use solution include salts provided in water-soluble form.
The salt can be function as analytical tracer.
[0098] Preferred are salts selected from the group of lithium chloride, lithium iodide,
sodium chloride, sodium iodide, potassium chloride, potassium iodide, sodium sulphate,
sodium acetate, potassium acetate, sodium nitrate, sodium phosphate and mixtures thereof.
[0099] The composition of cleaning of the invention can comprises an amount of salt of ≥
0 wt.-% to ≤ 10 wt.-%, preferably ≥ 0.01 wt.-% to ≤ 9 wt.-%, further preferred ≥ 0.1
wt.-% to ≤ 8.5 wt.-%, and more preferred ≥ 0.5 wt.-% to ≤ 8 wt.-%.
[0100] The composition for cleaning can comprise at least one salt. It should be understood
that the addition of a salt to the composition for cleaning can be omitted.
Liquid conditioner
[0101] The liquid alkaline composition according to the present invention can comprise at
least one liquid conditioner. The amount of liquid conditioner can be > 0 wt.-% to
≤ 13.5 wt.-%, preferably ≥ 0.045 wt.-% to ≤ 11.25 wt.-%, further preferred ≥ 0.225
wt.-% to ≤ 9 wt.-%, and more preferred ≥ 0.45 wt.-% to ≤ 15 wt.-%, based on the weight
of the cleaning composition of the invention.
[0102] In order to maintain the dispersibility of the magnesium and/or zinc corrosion inhibitors
in aqueous solution, and in the presence of agents which would otherwise cause precipitation
of the zinc or magnesium ions, e. g. , carbonates, phosphates, etc. , it might be
advantageous to include a carboxylated polymer to the solution.
[0103] The useful carboxylated polymer corrosion inhibitors may be generically categorized
as water-soluble carboxylic acid polymers such as polyacrylic and polymethacrylic
acids or vinyl addition polymers, in addition to the acid-substituted polymers used
in the present invention.
[0104] Of the vinyl addition polymer corrosion inhibitors contemplated, maleic anhydride
copolymers as with vinyl acetate, styrene, ethylene, isobutylene, acrylic acid and
vinyl ethers are examples.
[0105] More preferred can be the use of a liquid conditioner selected from the group of
salts of acid substituted polymers of monomers of monoethylenically unsaturated C
3-C
8-carboxylic acid, preferably from salts of C
3-C
4-monocarboxylic acid, acrylate, methacrylate, salts of polyitaconate, salts of polymaleate,
and mixtures thereof, most preferred is a polyacrylate; and/or the liquid conditioner
can be selected from the group of acid substituted polymers of monomers of monoethylenically
unsaturated C
3-C
8-carboxylic acid, preferably from a C
3-C
4-monocarboxylic acid, acrylic acid, methacrylic acid, polyitaconic acid, polymaleic
acid, and mixtures thereof, most preferred is a polyacrylic acid.
[0106] The polymers tend to be water-soluble or at least colloidally dispersible in water.
The molecular weight of these polymers may vary over a broad range although it is
preferred to use polymers having an average molecular weights (Mw) ranging from ≥
1,000 up to ≤ 1,000, 000, preferably ≥ 2.000 up to ≤ 800, 000, further preferred ≥
2.500 up to ≤ 500, 000, also preferred ≥ 3,000 up to ≤ 250, 000, more preferred ≥
3,500 up to ≤ 100, 000, especially preferred ≥ 4,000 up to ≤ 50, 000 and in particular
preferred ≥ 4,500 up to ≤ 10, 000.
[0107] The polymers or copolymers (either the acid-substituted polymers or other added polymers)
may be prepared by either addition or hydrolytic techniques. Thus, maleic anhydride
copolymers are prepared by the addition polymerization of maleic anhydride and another
comonomer such as styrene. Preferably salts of acid substituted polymers of monomers
of acrylate, methacrylate, salts of polyitaconic acid, salts of polymaleic acid, and
mixtures thereof. In particular preferred are salts of polyacrylic acid.
[0108] The low molecular weight acrylic acid polymer corrosion inhibitors may be prepared
by addition polymerization of acrylic acid or its salts either with itself or other
vinyl comonomers.
[0109] Alternatively, such polymers may be prepared by the alkaline hydrolysis of low molecular
weight acrylonitrile homopolymers or copolymers.
[0110] More preferred can be the use of a liquid conditioner such as a homo polyacrylic
acid and/or a homo polyacrylate. Most preferred is the use of a homo polyacrylic acid
and/or a homo polyacrylate having a Mw ranging from ≥ 1,000 up to ≤ 1,000, 000, preferably
≥ 2.000 up to ≤ 800, 000, further preferred ≥ 2.500 up to ≤ 500, 000, also preferred
≥ 3,000 up to ≤ 250, 000, more preferred ≥ 3,500 up to ≤ 100, 000, especially preferred
≥ 4,000 up to ≤ 50, 000 and in particular preferred ≤ 4,500 up to ≤ 10, 000.
[0111] It should be understood that other liquid conditioners, with the exception of polymer
of monomers of water-soluble monoethylenically unsaturated C
3 to C
8-carboxylates, can be omitted.
Sequestering Agent
[0112] The composition for cleaning can includes a sequestrant. In general, a sequestrant
is a molecule capable of coordinating (i.e., binding) the metal ions commonly found
in natural water to prevent the metal ions from interfering with the action of the
other detersive ingredients of a cleaning composition. Some sequestering agents can
also function as a threshold agent when included in an effective amount. For a further
discussion of sequestrants, see
Kirk-Othmer, Encyclopedia of Chemical Technology, Third Edition, volume 5, pages 339-366 and
volume 23, pages 319-320. A variety of sequestrants can be used including, for example, organic phosphonate,
aminocarboxylic acid, condensed phosphate, inorganic sequestrant, polymeric polycarboxylate,
mixture thereof, or the like. Such sequestrants and sequestrants are commercially
available.
[0113] Suitable condensed phosphates include sodium and potassium orthophosphate, sodium
and potassium pyrophosphate, sodium and potassium tripolyphosphate, sodium hexametaphosphate,
preferably of tripolyphosphate.
[0114] In an embodiment, the composition of the invention includes as sequestrant condensed
phosphate and polyacrylate, or another polymer, for example, sodium tripolyphosphate
and polyacrylate.
[0115] Sodium salts of condensed phosphates are preferred to the corresponding potassium
salts.
[0116] The sequestrant can include an organic phosphonate, such as an organic-phosphonic
acid and alkali metal salts thereof. Some examples of suitable organic phosphonates
include:
1-hydroxyethane-1,1-diphosphonic acid:
CH3C(OH)[PO(OH)2]2;
aminotri(methylenephosphonic acid):
N[CH2PO(OH)2]3;
aminotri(methylenephosphonate), sodium salt;
2-hydroxyethyliminobis(methylenephosphonic acid):
HOCH2CH2N[CH2PO(OH)2]2;
diethylenetriaminepenta(methylenephosphonic acid): (HO)2POCH2N[CH2CH2N[CH2PO(OH)2]2]2;
diethylenetriaminepenta(methylene-phosphonate), sodium salt:
C9H(28-x)N3NaxO15P5 (x=7);
hexamethylenediamine(tetramethylenephosphonate), potassium salt:
C10H(28-x)N2KxO12P4 (x=6);
bis(hexamethylene)triamine(pentamethylenephosphonic acid):
(HO2)POCH2N[CH2)6N[CH2PO(OH)2]2]2; and phosphorus acid H3PO3; and other similar organic phosphonates, and mixtures thereof.
2-hydroxyethyliminobis(methylenephosphonic acid):
HOCH2CH2N[CH2PO(OH)2]2;
diethylenetriaminepenta(methylenephosphonic acid): (HO)2POCH2N[CH2CH2N[CH2PO(OH)2]2]2;
diethylenetriaminepenta(methylenephosphonate), sodium salt:
C9H(28-x)N3NaxO15P5 (x=7);
hexamethylenediamine(tetramethylenephosphonate), potassium salt:
C10H(28-x)N2KxO12P4 (x=6);
bis(hexamethylene)triamine(pentamethylenephosphonic acid):
(HO2)POCH2N[CH2)6N[CH2PO(OH)2]2]2; and
phosphorus acid H3PO3; and other similar organic phosphonates, and mixtures thereof.
[0117] More preferred can be sequestering agents selected from the group comprising salts
of phosphonates, salts of phosphonocarboxylic acids, salts of 1-hydroxyethylidene
-1,1,-diphosphonic acid (HEDP), phosphonates, the corresponding acid form and mixtures
thereof, wherein the salt can be preferably a sodium salt. Most preferred can be an
acid and/or a salt of 2-phosphonobutane-1,2,4-tricarboxylic acid.
[0118] The composition for cleaning of the invention can comprise ≥ 0 wt.-% to ≤ 32.5 wt.-%,
preferably ≥ 0.05 wt.-% to ≤ 30 wt.-%, further preferred ≥ 0.25 wt.-% to ≤ 29 wt.-%,
and more preferred ≥ 0.5 wt.-% to ≤ 27.5 wt.-%, of at least one sequestering agent.
[0119] It should be understood that the sequestering agent can include mixtures of different
sequestering agents.
Organic carboxylates
[0120] Depending on the pH value of the solution of the cleaning composition of the invention
the organic carboxylic acids can be present in its salt form, preferably as sodium
salt.
[0121] Suitable organic carboxylic acids, but are not limited to, are C
3 to C
9 organic carboxylic acids selected from the group lactic acid, citric acid, glycolic
acid, acetic acid, propionic acid, succinic acid, glutaric acid, adipinic acid, butanedioic
acid, isoascorbic acid, ascorbatic acid and tatric acid.
[0122] Suitable organic carboxylates, but are not limited to, are C
3 to C
9 organic carboxylates selected from the group comprising lactate, citrate, glycolate,
acetate, propionate, succinate, glutarate, adipate, butanedioate, isoascorbate, sodium
ascorbate and tatrate and preferably sodium salts thereof.
[0123] The composition for cleaning can comprise the C
3 to C
9 organic carboxylate and/or C
3 to C
9 organic carboxylic acid in an amount of ≥ 0 wt.-% to ≤ 20 wt.-%, preferably ≥ 0.25
wt.-% to ≤ 19 wt.-%, further preferred ≥ 0.5 wt.-% to ≤ 17.5 wt.-%, and more preferred
≥ 0.75 wt.-% to ≤ 15 wt.-%.
Solvents
[0124] Suitable solvents include, but are not limited to, water, alcohols, glycols, glycol
ethers, esters, and the like, or combinations thereof. Suitable alcohols include,
but are not limited to, ethanol, propanol, isopropanol (propan-2-ol), 2-butoxy ethanol
(butyl glycol), 1-decanol, benzyl alcohol, glycerin, monoethanolamine (MEA), and the
like, or mixtures thereof.
[0125] Suitable glycols include, but are not limited to, ethylene glycol (monoethylene glycol
or MEG), diethylene glycol (propylene glycol or butoxy diglycol or DEG), triethylene
glycol (TEG), tetraethylene glycol (TETRA EG), glycerin, propylene glycol, dipropylene
glycol, hexylene glycol, and the like, or combinations thereof.
[0126] Preferred solvents that can be used are include alcohols, such as C
2-C
6 alcohols, N-alkyl pyrrolidones, such as a C
8-C
18 alkyl pyrrolidone, e.g. N-octyl pyrrolidone, N-lauryl pyrrolidone, and the like.
[0127] Lauryl (or n-dodecyl) pyrrolidone is commercially available, for example, as sold
by ISF Chemicals under the brand name Surfadone, such as Surfadone LP-300.
[0128] Solvents of similar structure can also be used. Such solvents include lactones, such
as decanolactone. Other suitable solvents include diacetone alcohol, long chain, e.g.
greater than C
6-alkyl ethers, cyclic alkyl ketones, a 1,2 alkane diol having 5 to 10 carbon atoms
such as 1,2 hexanediol, a C
8-C
10 alkene carbonate, a pyrrol (such as N-capryl pyrrol, N-lauryl pyrrol, and the like),
and mixtures thereof.
[0129] More preferred are solvents selected from the group comprising water, alcohols, glycols,
glycol ethers, esters, preferably ethanol, methanol, propanol, propan-2-ol, 2-butoxy
ethanol, 1-decanol, benzyl alcohol, glycerin, monoethanolamine and mixtures thereof,
most preferred is water.
Tenside
[0130] The composition for cleaning of the invention can comprises at least one tenside.
The tenside can be selected from the group of nonionic tenside, cationic tenside,
anionic tenside, amphoteric tenside and mixtures thereof. More preferred are tenside
which are biodegradable..
[0131] The additional surfactant component can be used for enhancing the cleaning properties
of the composition for cleaning of the invention, in particular the ready to use solution.
The surfactant component can be used to reduce surface tension and wet the soil particulate
to allow penetration of the use solution and separation of the soil.
[0132] It should be understood that the addition of a tenside to the composition for cleaning
of the invention can be omitted.
Nonionic Surfactants
[0133] Exemplary nonionic surfactants that can be used in the composition for cleaning of
the invention are alkoxylated, preferably ethoxylated or ethoxylated and propoxylated,
fatty acid alkyl esters preferably containing 1 to 4 carbon atoms in the alkyl chain,
more particularly the fatty acid methyl esters.
[0134] The nonionic low alkoxylated alcohol tensides can be used to reduce surface tension,
wet the soil particulate to allow penetration of the use solution, separation of the
soil.
[0135] The alkoxylated alcohol tensides mentioned above includes end caped alkoxylated alcohol
tensides.
[0136] Exemplary nonionic low alkoxylated alcohol tensides that can be used are alkoxylated
alcohols containing 1 to 4 ethylene oxide groups (1-4EO), 1 to 4 butylene oxide groups
(1-4BO), 1 to 4 propylene oxide groups (1-4PO), end caped alkoxylated alcohol tensides
thereof or mixtures thereof.
[0137] Advantageously low alkoxylated alcohols useful according to the invention are particularly
primary and/or branched alcohols, preferably containing 8 to 18 carbon atoms, and
containing 1 to 4 ethylene oxide groups (1-4EO), 1 to 4 butylene oxide groups (1-4BO),
1 to 4 propylene oxide groups (1-4PO), end caped alkoxylated alcohol tensides thereof
or may contain a mixture. The alcohol radical may be linear, branched, or may contain
a mixture.
[0138] Exemplary nonionic higher alkoxylated alcohol tensides in the composition for cleaning
according to the invention are alkoxylated alcohols containing 5 to 40 ethylene oxide
groups (5-40EO), butylene oxide groups (5-40BO), propylene oxide groups (5-40PO),
preferably 6 to 30 ethylene oxide groups (6-30EO), butylene oxide groups (6-30BO),
propylene oxide groups (6-30PO), further preferred 7 to 20 ethylene oxide groups (7-20EO),
butylene oxide groups (7-20BO), propylene oxide groups (7-20PO), more preferred 8
to 10 ethylene oxide groups (8-10EO), butylene oxide groups (8-10BO), propylene oxide
groups (8-10PO), and most preferred 8 ethylene oxide groups (8EO), butylene oxide
groups (8BO), propylene oxide groups (8PO) groups, end caped alkoxylated alcohol tensides
thereof, or mixtures thereof.
[0139] Advantageously higher alkoxylated alcohols useful in the composition of the invention
are particularly linear and/or branched alcohols, preferably containing 8 to 18 carbon
atoms, and 5 to 40 ethylene oxide groups (5-40EO), butylene oxide groups (5-40BO),
propylene oxide groups (5-40PO), preferably 6 to 30 ethylene oxide groups (6-30EO),
butylene oxide groups (6-30BO), propylene oxide groups (6-30PO), further preferred
7 to 20 ethylene oxide groups (7-20EO), butylene oxide groups (7-20BO), propylene
oxide groups (7-20PO), more preferred 8 to 10 ethylene oxide groups (8-10EO), butylene
oxide groups (8-10BO), propylene oxide groups (8-10PO), and most preferred 8 ethylene
oxide groups (8EO), butylene oxide groups (8BO), propylene oxide groups (8PO), end
caped alkoxylated alcohol tensides thereof, or may contain a mixture. The alcohol
radical may be linear, branched, or may contain a mixture.
[0140] Particularly preferred are higher alkoxylated alcohols, preferably alcohol ethoxylates
with linear or branched radicals of alcohols with 12 to 18 carbon atoms, e.g. from
coco-, palm-, tallow- or oleyl alcohol, containing 8 to 18 carbon atoms, and 5 to
40 ethylene oxide groups (5-40EO), butylene oxide groups (5-40BO), propylene oxide
groups (5-40PO), preferably 6 to 30 ethylene oxide groups (6-30EO), butylene oxide
groups (6-30BO), propylene oxide groups (6-30PO), further preferred 7 to 20 ethylene
oxide groups (7-20EO), butylene oxide groups (7-20BO), propylene oxide groups (7-20PO),
more preferred 8 to 10 ethylene oxide groups (8-10EO), butylene oxide groups (8-10BO),
propylene oxide groups (8-10PO), and most preferred 8 ethylene oxide groups (8EO),
butylene oxide groups (8BO), propylene oxide groups (8PO), end caped alkoxylated alcohol
tensides thereof, or may contain a mixture. However, most preferred is isotridecyl
alcohol in the composition of the invention with 6EO to 14EO, 6PO to 14PO, 6BO to
14BO, preferably 7EO to 10EO, 7PO to 10PO, 7BO to 10BO, and most preferred 8EO, 8PO,
8BO, or may contain a mixture.
[0141] According to the present invention higher alkoxylated alcohols can be used with 5EO,
6EO, 7EO, 8EO, 9EO, 10EO, 11EO, 12EO, 13EO, 14EO, 15EO, 16EO, 17EO, 18EO, 19EO, 20EO,
21EO, 22EO, 23EO, 24EO or 25EO, 5PO, 6PO, 7PO, 8PO, 9PO, 10PO, 11PO, 12PO, 13PO, 14PO,
15PO, 16PO, 17PO, 18PO, 19PO, 20PO, 21PO, 22PO, 23PO, 24PO or 25PO, 5BO, 6BO, 7BO,
8BO, 9BO, 10BO, 11BO, 12BO, 13BO, 14BO, 15BO, 16BO, 17BO, 18BO, 19BO, 20BO, 21BO,
22BO, 23BO, 24BO or 25BO, end caped alkoxylated alcohol tensides thereof, or may contain
a mixture.
[0142] Exemplary higher alkoxylated alcohols with 5EO to 40EO, preferably 6EO or 30EO, further
preferred 7EO to 20EO, more preferred 8EO to 10EO and most preferred 8EO; 5PO to 40PO,
preferably 6PO or 30PO, further preferred 7PO to 20PO, more preferred 8PO to 10PO
and most preferred 8PO; 5BO to 40BO, preferably 6BO or 30BO, further preferred 7BO
to 20BO, more preferred 8BO to 10BO and most preferred 8BO include C
12-C
14-alcohols; C
9-C
11-alcohols, C
13-C
15-alcohols, C
12-C
18-alcohols, end caped alkoxylated alcohol tensides thereof, and mixtures thereof, as
well as mixtures of C
12-C
14-alcohols and C
12-C
18-alcohols, end caped alkoxylated alcohol tensides thereof, and most preferred is a
C
13-alcohol.
[0143] In addition to these nonionic tensides, fatty alcohols containing more than 12 EO,
12 PO, 12 BO may also be used. Examples of such fatty alcohols are tallow fatty alcohol
containing 14 EO, 25 EO, 30 EO or 40 EO, 14 PO, 25 PO, 30 PO or 40 PO, 14 BO, 25 BO,
30 BO or 40 BO and end caped alkoxylated alcohol tensides thereof.
[0144] The degrees of 5EO to 40EO, 5PO to 40PO, 5BO to 40BO preferably 6EO or 30EO, 6PO
or 30PO, 6BO or 30BO,further preferred 7EO to 20EO, 7PO to 20PO, 7BO to 20BO,more
preferred 8EO to 10 EO, 8PO to 10 PO, 8BO to 10 BO and most preferred 8EO, 8PO, 8BO
alkoxylation mentioned are statistical mean values, which for a special product, may
be either a whole number or a fractional number. However, more preferred, the degrees
of 5EO to 40EO, 5PO to 40PO, 5BO to 40BO preferably 6EO or 30EO, 6PO or 30PO, 6BO
or 30BO further preferred 7EO to 20EO, 7PO to 20PO , 7BO to 20BO, more preferred 8EO
to 10 EO, 8PO to 10 PO, 8BO to 10 BO and most preferred 8EO, 8PO, 8BO alkoxylation
mentioned may be either a whole number or a fractional number. Most preferred, the
degrees of 5EO to 40EO, 5PO to 40PO, 5BO to 40BO, preferably 6EO or 30EO, 6PO or 30PO,
6BO or 30BO, further preferred 7EO to 20EO, 7PO to 20PO, 7BO to 20BO, more preferred
8EO to 10 EO, 8PO to 10PO, 8BO to 10BO and most preferred 8EO, 8PO, 8BO. The alkoxylation
grade mentioned may be a whole number.
[0145] Preferred higher alkoxylated alcohols have a narrow homolog distribution (narrow
range ethoxylates, NRE).
[0146] Further surfactants include alkoxylated long chain fatty acid amides where the fatty
acid has 8-20 carbon atoms and the amide group is alkoxylated with 1-20 ethylene oxide,
propylene oxide and/or butylenes oxide units.
[0147] A further class of nonionic surfactants, which can be used as ingredients in a composition
for cleaning according to the invention, is that of the alkyl polyglycosides (APG).
Suitable alkyl polyglycosides satisfy the general Formula RO(G)z where R is a linear
or branched, particularly 2-methyl-branched, saturated or unsaturated aliphatic radical
containing 8 to 22 and preferably 12 to 18 carbon atoms and G stands for a glycose
unit containing 5 or 6 carbon atoms, preferably glucose. The degree of oligomerization
z is a number between 1.0 and 4.0 and preferably between 1.1 and 1.4.
[0148] Silicone containing nonionic surfactants, such as the ABIL B8852 or Silwet 7602,
can also be used. An exemplary silicone-containing surfactant is silicone polybutane.
[0149] Examples of amine oxide surfactants include: dimethyldodecylamine oxide, dimethyltetradecylamine
oxide; ethylmethyltetradecylamine oxide, cetyldimethylamine oxide, dimethylstearylamine
oxide, cetylethylpropylamine oxide, diethyldodecylamine oxide, diethyltetradecylamine
oxide, dipropyldodecylamine oxide, lauryl dimethyl amine oxide, bis- (2-hydroxyethyl)
dodecylamine oxide, bis- (2-hydroxyethyl)-3-dodecoxy-1- hydroxypropyl amine oxide,
(2-hydroxypropyl) methyltetradecylamine oxide, dimethyloleyamine oxide, dimethyl-
(2-hydroxydodecyl) amine oxide, and the corresponding decyl, hexadecyl and octadecyl
homologs of the above compounds.
[0150] Additional nitrogen-containing surfactants include ethoxylated primary alkyl amines
where the alkyl group has 10-20 carbon atoms and the amine is ethoxylated with 2-20
ethylene oxide units.
[0151] Additionally, non-ionic surfactants derived from the condensation of ethylene oxide
with the product resulting from the reaction of propylene oxide and ethylene diamine
are also useful. For example, there are compounds containing from 40% to 80% of polyoxyethylene
by weight and having a molecular weight from 5,000 to 11,000 resulting from the reaction
of ethylene oxide groups with a hydrophobic base constituted of the reaction product
from ethylene diamine and excess propylene oxide wherein the base has a molecular
weight on order of 2,500-3, 000.
[0152] Suitable nonionic surfactants include the polyoxyethylene-polyoxypropylene condensates,
which are sold by BASF under the trade name'Pluronic', polyoxyethylene condensates
of aliphatic alcohols/ethylene oxide condensates having from 1 to 30 moles of ethylene
oxide per mole of coconut alcohol; ethoxylated long chain alcohols sold by Shell Chemical
Co. under the trade name 'Neodol', polyoxyethylene condensates of sorbitan fatty acids,
alkanolamides, such as the monoalkoanolamides, dialkanolamides and the ethoxylated
alkanolamides, for example coconut monoethanolamide, lauric isopropanolamide and lauric
diethanolamide; and amine oxides for example dodecyldimethylamine oxide.
[0153] Further exemplary non-ionic surfactants include alkylphenol alkoxylates, and amine
oxides such as alkyl dimethylamine oxide or bis (2- hydroxyethyl) alkylamine oxide.
[0154] The additional nonionic surfactants can be provided in the composition for cleaning
of the invention in an amount of ≥ 0 wt.-% to ≤ 40 wt.-%, preferably ≥ 0.1 wt.-% to
≤ 35 wt.-%, further preferred ≥ 0.5 wt.-% to ≤ 32 wt.-%, and more preferred 1.0 wt.-%
to 30 wt.-%, based on the weight of all components of the total composition.
[0155] It should be understood that the addition of a nonionic tenside to the composition
for cleaning of the invention can be omitted.
Anionic Surfactants
[0156] The composition for cleaning according to the invention is preferably free of anionic
surfactants.
[0157] Exemplary anionic surfactants that can be used include organic carboxylates, organic
sulfonates, organic sulfates, organic phosphates and the like, particularly linear
alkylaryl sulfonates, such as alkylarylcarboxylates, alkylarylsulfonates, alkylarylphosphates,
and the like. These classes of anionic surfactants are known within the surfactant
art as linear alkyl benzyl sulfonates (LABS), alpha olefin sulfonates (AOS), alkyl
sulfates, and secondary alkane sulfonates.
[0158] The anionic surfactants can be provided in the composition for cleaning of the invention
in an amount of ≥ 0 wt.-% to ≤ 40 wt.-%, preferably ≥ 0.1 wt.-% to ≤ 35 wt.-%, further
preferred ≥ 0.5 wt.-% to ≤ 32 wt.-%, and more preferred 1.0 wt.-% to 30 wt.-%, based
on the weight of all components of the total composition.
[0159] It should be understood that the addition of an anionic tenside to the composition
for cleaning of the invention can be omitted.
Cationic Surfactans
[0160] The presence of the nonionic surfactants enables the use of low levels of higher
foaming cationic surfactants, while keeping the foaming at an acceptable level. In
a preferred embodiment of the invention, the composition for cleaning also comprises
a cationic surfactant.
[0161] Suitable cationic surfactants include quaternary ammonium compounds having the formula
of RR'R" R"'N
+X
-, where R, R', R" and R"' are each a C
1-C
24 alkyl, aryl or arylalkyl group that can optionally contain one or more P, O, S or
N heteroatoms, and X is F, Cl, Br, I or an alkyl sulfate. Additional preferred cationic
surfactants include ethoxylated and/or propoxylated alkyl amines, diamines, or triamines.
[0162] Each of R, R', R" and R"' can independently include, individually or in combination,
substituents including 6 to 24 carbon atoms, preferably 14 to 24 carbon atoms, and
more preferably, 16 to 24 carbon atoms.
[0163] Each of R, R', R" and R"' can independently be linear, cyclic, branched, saturated,
or unsaturated, and can include heteroatoms such as oxygen, phosphorous, sulfur, or
nitrogen. Any two of R, R', R" and R"' can form a cyclic group. Any one of three of
R, R', R" and R"' can independently can be hydrogen. X is preferably a counter ion
and preferably a non-fluoride counter ion. Exemplary counter ions include chloride,
bromide, methosulfate, ethosulfate, sulfate, and phosphate.
[0164] In an embodiment, the quaternary ammonium compound includes alkyl ethoxylated and/or
propoxylated quaternary ammonium salts (or amines).
Preferably, the alkyl group contains between about 6 and about 22 carbon atoms and
can be saturated and/or unsaturated. The degree of alkoxylation is preferably between
about 2 and about 20, and/or the degree of propoxylation is preferably between about
0 and about 30.
In an embodiment, the quaternary ammonium compound includes an alkyl group with about
6 to about 22 carbon atoms and a degree of alkoxylation between about 2 and about
20.
[0165] The cationic surfactants can be provided in the composition for cleaning of the invention
in an amount of ≥ 0 wt.-% to ≤ 40 wt.-%, preferably ≥ 0.1 wt.-% to ≤ 35 wt.-%, further
preferred ≥ 0.5 wt.-% to ≤ 32 wt.-%, and more preferred 1.0 wt.-% to 30 wt.-%, based
on the weight of all components of the total composition.
[0166] It should be understood that the addition of a cationic tenside to the composition
for cleaning of the invention can be omitted.
Amphoteric Surfactants
[0167] The composition for cleaning according to the invention is preferably free of amphoteric
surfactants.
[0168] Examples of suitable amphoteric surfactants include capryloamphopropionate, disodium
lauryl B-iminodipropionate, and cocoamphocarboxypropionate, and disodium octylimino
dipropionate.
[0169] The amphoteric surfactants can be provided in the composition in an amount of ≥ 0
wt.-% to ≤ 40 wt.-%, preferably ≥ 0.1 wt.-% to ≤ 35 wt.-%, further preferred ≥ 0.5
wt.-% to ≤ 32 wt.-%, and more preferred 1.0 wt.-% to 30 wt.-%, based on the weight
of all components of the total composition.
[0170] It should be understood that the addition of an amphoteric tenside to the composition
for cleaning of the invention can be omitted.
Zeolite
[0171] The composition for cleaning according to the invention is preferably free of zeolites.
However, the composition of the present invention can comprise zeolites. The amount
of zeolites can be ≥ 0 wt.-% to ≤ 40 wt.-%, preferably ≥ 1 wt.-% to ≤ 35 wt.-%, further
preferred ≥ 1.5 wt.-% to ≤ 30 wt.-%, and more preferred ≥ 2.0 wt.-% to ≤ 25 wt.-%,
based on the weight of all components of the total composition.
[0172] Suitable zeolites are fine crystalline, synthetic zeolites containing bound water,
zeolite A and/or P are preferred. A particularly preferred zeolite P is zeolite MAP
(Registered trademark) (a commercial product of Crosfield). However, the zeolites
X as well as mixtures of A, X and/or P are also suitable. Commercially available and
preferred in the context of the present invention is, for example, also a co-crystallizate
of zeolite X and zeolite A (ca. 80 wt. % zeolite X), which is marketed under the name
of VEGOBOND AX (Registered trademark) by Condea Augusta S.p.A.
[0173] Suitable zeolites have a mean particle size of less than 10 µm (volume distribution,
as measured by the Coulter Counter Method) and comprise preferably 18% to 22% by weight
and more preferably 5% to 22% by weight of bound water.
Hydrotrope Component
[0174] It should be understood that the hydrotrope component is optional and can be omitted
if it is not needed for stabilizing the surfactant component. In many cases, it is
expected that the hydrotrope component will be present to help stabilize the surfactant
component. Thus, the composition for cleaning according to the invention is preferably
free of hydrotrope component. However, the hydrotrope component can be used to help
stabilize the surfactant.
[0175] Examples of the hydrotropes include the sodium, potassium, ammonium and alkanol ammonium
salts of xylene, toluene, ethylbenzoate, isopropylbenzene, naphthalene, alkyl naphthalene
sulfonates, phosphate esters of alkoxylated alkyl phenols, phosphate esters of alkoxylated
alcohols, short chain (C8 or less) alkyl polyglycoside, sodium, potassium and ammonium
salts of the allcyl sarcosinates, salts of cumene sulfonates, amino propionates, diphenyl
oxides, and disulfonates.
[0176] The hydrotropes are useful in maintaining the organic materials including the surfactant
readily dispersed in the aqueous cleaning solution and, in particular, in an aqueous
which is an especially preferred form of packaging the compositions of the invention
and allow the user of the compositions to accurately provide the desired amount of
cleaning composition into the aqueous wash solution.
[0177] The hydrotrope component can be provided in the corrosion inhibitor in an amount
sufficient to stabilize the surfactant component. When the hydrotrope component is
used, it can be provided in an amount of ≥ 1 wt.-% to ≤ 20 wt.-%, preferably ≥ 2 wt.-%
to ≤ 15 wt.-%, further preferred ≥ 4 wt.-% to ≤ 10 wt.-%, and more preferred ≥ 6 wt.-%
to ≤ 8 wt.-%, based on the weight of all components of the total composition.
Foam Inhibitor
[0178] The composition for cleaning according to the invention is preferably free of foam
inhibitors. However, suitable non-surface-active foam inhibitors are, for example,
organopolysiloxanes and mixtures thereof with microfine, optionally silanised silica
and also paraffins, waxes, microcrystalline waxes and mixtures thereof with silanised
silica or bis-fatty acid alkylenediamides such as bis-stearyl ethylenediamide. The
amount of foam inhibitors can be ≥ 1 wt.-% to ≤ 10 wt.-%, preferably ≥ 2 wt.-% to
≤ 9 wt.-%, further preferred > 3 wt.-% to ≤ 6 wt.-%, and more preferred > 4 wt.-%
to ≤ 5 wt.-%, based on the weight of the total first component.
[0179] Mixtures of various foam inhibitors, for example mixtures of silicones, paraffins
or waxes, are also used with advantage.
Other Additives
[0180] The composition for cleaning according to the invention is preferably free of other
additives. However, other additives may be included in the composition according to
the present invention.
[0181] Other additives may include, but are not limited to dyes, color transfer inhibitors,
solvents, Exemplary additional agents include dye, color transfer inhibitor, anti-redeposition
agents, optical brighteners, builder, oil and water repellant agents, hydrotrope,
foam inhibitor, color fastness agents, starch/sizing agents, fabric softening agents,
antimicrobials, fungicides, UV absorbers, thickeners, oxidizers, fragrances and/or
mixtures thereof.
[0182] For laundry cleaning or sanitizing compositions, preferred dyes and odorants include
one or more blue dyes, which can be employed at concentrations up to 1 wt-%.
Color Transfer Inhibitors
[0183] Color transfer inhibitors are polymers of vinyl pyrrolidone, vinyl imidazole, vinyl
pyridine-N-oxide or copolymers thereof. Polymers of vinyl imidazole, vinyl pyrrolidone
and copolymers thereof are particularly suitable.
Enzyme
[0184] The composition for cleaning according to the invention may comprises an enzyme material.
The enzyme material can be selected from proteases, amylases, lipases, cellulases,
peroxidases, and mixtures thereof. The enzyme material can be present in said composition
in a concentration of from 0.001 wt.-% to 3 wt.-%, based on the weight of the total
first component.
Dyes
[0185] Various dyes, odorants including perfumes, and other aesthetic enhancing agents may
also be included in the composition.
[0186] Dyes may be included to alter the appearance of the composition, as for example,
Direct Blue 86 (Miles), Fastusol Blue (Mobay Chemical Corp.), Acid Orange 7 (American
Cyanamid), Basic Violet 10 (Sandoz), Acid Yellow 23 (GAF), Acid Yellow 17 (Sigma Chemical),
Sap Green (Keyston Analine and Chemical), Metanil Yellow (Keystone Analine and Chemical),
Acid Blue 9 (Hilton Davis), Sandolan Blue/Acid Blue 182 (Sandoz), Hisol Fast Red (Capitol
Color and Chemical), Fluorescein (Capitol Color and Chemical), Acid Green 25 (Ciba-Geigy),
and the like.
Fragrances
[0187] Fragrances or perfumes that may be included in the compositions include, for example,
terpenoids such as citronellol, aldehydes such as amyl cinnamaldehyde, a jasmine such
as CIS-jasmine or jasmal, vanillin, and the like.
Anti-Redeposition Agents
[0188] Anti-redeposition agents can be used to facilitate sustained suspension of soils
in a use solution and reduce the tendency of the soils to be redeposited onto a substrate
from which they have been removed.
[0189] Exemplary anti-redeposition agents include fatty acid amides, fluorocarbon surfactants,
complex phosphate esters, styrene maleic anhydride copolymers, and cellulosic derivatives
such as carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose,
and the like. Specific exemplary anti-redeposition agents include styrene maleic anhydride
copolymers, sodium tripolyphosphate, sodium carboxymethyl cellulose, polyvinylpyrrolidone,
acrylic acid polymers, polyethylene glycole and maleic/olefinic copolymers. The amount
of anti-redeposition agents can be ≥ 0.1 wt.-% to ≤ 20 wt.-%, preferably ≥ 0.2 wt.-%
to ≤ 10 wt.-%, further preferred ≥ 0.3 wt.-% to ≤ 5 wt.-%, and more preferred > 0.4
wt.-% to ≤ 1 wt.-%, based on the weight of all components of the total composition.
Optical Brightener
[0190] Optical brightener, referred to as fluorescent whitening agent or fluorescent brightening
agent, provides optical compensation for the yellow cast in fabric substrates. With
optical brighteners, yellowing is replaced by light emitted from optical brighteners
present in the area commensurate in scope with yellow color. The violet to blue light
supplied by the optical brighteners combines with other light reflected from the location
to provide a substantially complete or enhanced bright white appearance. The brightener
through fluorescence produces this additional light. Optical brighteners can absorb
light in the ultraviolet range (e.g., 275-400 nm) and can emit light in the ultraviolet
blue spectrum (e.g., 400-500 nm).
[0191] Fluorescent compounds belonging to the optical brightener family are typically aromatic
or aromatic heterocyclic materials often containing condensed ring system. An important
feature of these compounds is the presence of an uninterrupted chain of conjugated
double bonds associated with an aromatic ring. The number of such conjugated double
bonds is dependent on substituents as well as the planarity of the fluorescent part
of the molecule.
[0192] Most brightener compounds are derivatives of stilbene or 4,4'-diamino stilbene, biphenyl,
five membered heterocycles (triazoles, oxazoles, imidazoles, etc.) or six membered
heterocycles (cumarins, naphthalamides, triazines, etc.).
[0193] The choice of optical brighteners for use in the composition for cleanings will depend
upon a number of factors, such as the type of detergent, the nature of other components
present in the composition for cleaning, the temperature of the wash water, the degree
of agitation, and the ratio of the material washed to the tub size. The brightener
selection is also dependent upon the type of material to be cleaned, e.g., cottons,
synthetics, etc.. Since most laundry detergent products are used to clean a variety
of fabrics, the composition for cleanings should contain a mixture of brighteners,
which are effective for a variety of fabrics. It is of course necessary that the individual
components of such a brightener mixture be compatible.
[0194] Optical brighteners useful in the present invention are known and commercially available.
Commercial optical brighteners which may be useful in the present invention can be
classified into subgroups, which include, but are not necessarily limited to, derivatives
of stilbene, pyrazoline, coumarin, carboxylic acid, methinecyanines, dibenzothiophene-5,5-dioxide,
azoles, 5- and 6-membered-ring heterocycles and other miscellaneous agents.
[0196] Stilbene derivatives which may be useful in the present invention include, but are
not necessarily limited to, derivatives of bis(triazinyl)amino-stilbene; bisacylamino
derivatives of stilbene; triazole derivatives of stilbene; oxadiazole derivatives
of stilbene; oxazole derivatives of stilbene; and styryl derivatives of stilbene.
Preferred optical brighteners include stilbene derivatives.
[0197] Optical brightners that can be suitable used are 4,4'-bis-(2-sulostyryl)biphenyl
(CBS-X) and/or 4,4'-bis-[(4,6-di-anilino-s-triazin-2-yl)-amino]-2,2'-stilbenedisulfonate
(DMS-X).
[0198] The amount of optical brighteners can be ≥ 0.1 wt.-% to ≤ 2 wt.-%, and more preferred
> 0.2 wt.-% to ≤ 1 wt.-%, based on the weight of all components of the total composition.
Color Fastness Agents
[0199] Exemplary color fastness agents that can be used include polyvinyl pyrrolidone and
quaternary amines. It should be understood that the color fastness agents are optional,
but when they are used, they can be used in the composition for cleaning in amounts
of ≥ 0.1 wt.-% to ≤ 10 wt.-%, preferably ≥ 0.2 wt.-% to ≤ 5 wt.-%, further preferred
≥ 0.3 wt.-% to ≤ 3 wt.-%, and more preferred ≥ 0.5 wt.-% to ≤ 1 wt.-%, based on the
weight of all components of the total composition.
Softening Agents
[0200] The composition for cleaning can include softening agents. Exemplary softening agents
include quaternary ammonium compounds such as alkylated quaternary ammonium compounds,
ring or cyclic quaternary ammonium compounds, aromatic quaternary ammonium compounds,
diquaternary ammonium compounds, alkoxylated quaternary ammonium compounds, amidoamine
quaternary ammonium compounds, ester quaternary ammonium compounds, and mixtures thereof.
Exemplary alkylated quaternary ammonium compounds include ammonium compounds having
an alkyl group containing between 6 and 24 carbon atoms. Exemplary alkylated quaternary
ammonium compounds include monoalkyl trimethyl quaternary ammonium compounds, monomethyl
trialkyl quaternary ammonium compounds, and dialkyl dimethyl quaternary ammonium compounds.
Examples of the alkylated quaternary ammonium compounds are available commercially
under the names Adogen (Registered Trademark), Arosurf (Registered trademark), Variquat
(Registered trademark), and Varisoft (Registered trademark) . The alkyl group can
be a C
8-C
22 group or a C
8-C
18 group or a C
12-C
22 group that is aliphatic and saturated or unsaturated or straight or branched, an
alkyl group, a benzyl group, an alkyl ether propyl group, hydrogenated-tallow group,
coco group, stearyl group, palmityl group, and soya group. Exemplary ring or cyclic
quaternary ammonium compounds include imidazolinium quaternary ammonium compounds
and are available under the name Varisoft (Registered trademark). Exemplary imidazolinium
quaternary ammonium compounds include methyl-1 hydr. tallow amido ethyl-2-hydr. tallow
imidazolinium-methyl sulfate, methyl-1-tallow amido ethyl-2-tallow imidazolinium-methyl
sulfate, methyl-1-oleyl amido ethyl-2-oleyl imidazolinium-methyl sulfate, and 1-ethylene
bis (2-tallow, 1-methyl, imidazolinium-methyl sulfate). Exemplary aromatic quaternary
ammonium compounds include those compounds that have at least one benzene ring in
the structure. Exemplary aromatic quaternary ammonium compounds include dimethyl alkyl
benzyl quaternary ammonium compounds, monomethyl dialkyl benzyl quaternary ammonium
compounds, trimethyl benzyl quaternary ammonium compounds, and trialkyl benzyl quaternary
ammonium compounds. The alkyl group can contain between 6 and 24 carbon atoms, and
can contain between 10 and 18 carbon atoms, and can be a stearyl group or a hydrogenated
tallow group. Exemplary aromatic quaternary ammonium compounds are available under
the names Variquat (Registered trademark) and Varisoft (Registered trademark) . The
aromatic quaternary ammonium compounds can include multiple benzyl groups. Diquaternary
ammonium compounds include those compounds that have at least two quaternary ammonium
groups. An exemplary diquaternary ammonium compound is N-tallow pentamethyl propane
diammonium dichloride and is available under the name Adogen 477. Exemplary alkoxylated
quaternary ammonium compounds include methyldialkoxy alkyl quaternary ammonium compounds,
trialkoxy alkyl quaternary ammonium compounds, trialkoxy methyl quaternary ammonium
compounds, dimethyl alkoxy alkyl quaternary ammonium compounds, and trimethyl alkoxy
quaternary ammonium compounds. The alkyl group can contain between 6 and 24 carbon
atoms and the alkoxy groups can contain between 1 and 50 alkoxy groups units wherein
each alkoxy unit contains between 2 and 3 carbon atoms. Exemplary alkoxylated quaternary
ammonium compounds are available under the names Variquat (Registered trademark),
Varstat (Registered trademark), and Variquat (Registered trademark) . Exemplary amidoamine
quaternary ammonium compounds include diamidoamine quaternary ammonium compounds.
Exemplary diamidoamine quaternary ammonium compounds are available under the name
Varisoft (Registered trademark) . Exemplary amidoamine quaternary ammonium compounds
that can be used according to the invention are methyl-bis(tallow amidoethyl)-2-hydroxyethyl
ammonium methyl sulfate, methyl bis (oleylamidoethyl)-2-hydroxyethyl ammonium methyl
sulfate, and methyl bis (hydr.tallowamidoethyl)-2-hydroxyethyl ammonium methyl sulfate.
Exemplary ester quaternary compounds are available under the name Stephantex (Registered
Trademark)
[0201] The quaternary ammonium compounds can include any counter ion that allows the component
to be used in a manner that imparts fabric-softening properties. Exemplary counter
ions include chloride, methyl sulfate, ethyl sulfate, and sulfate.
[0202] It should be understood that the softening agents are optional components and need
not be present in the composition for cleaning of the invention. When fabric softening
agents are incorporated into the composition of the invention, they can be included
in amounts of ≥ 1 wt.-% to ≤ 20 wt.-%, preferably > 2 wt.-% to ≤ 18 wt.-%, further
preferred > 4 wt.-% to ≤ 15 wt.-%, and more preferred > 5 wt.-% to ≤ 10 wt.-%, based
on the weight of all components of the total composition.
Manufacture of Liquid alkaline composition
[0203] There are a number of processes known in prior art to provide a liquid product. For
example, all components of the composition for cleaning of the invention, the basis
solution, the concentrated solution as well as the ready-to-use solution can be mixed
together or added portionwise or one component is added after the other.
[0204] The ready-to-use composition, the basis composition, the concentrated composition
and/or the composition for cleaning of the invention, in particular the aqueous alkaline
ready-to-use solution and/or the concentrated composition for cleaning of the invention,
may be used at any temperature, including an elevated temperature of from about 20°
C to 140° C, preferably 30° C to 120° C, further preferred 45° C to 90° C, also preferred
50° C to 60° C and more preferred 55° C. After contact with the cleaning solution,
the solution is removed from the plastic and/or metal surface.
[0205] The contact time of the ready-to-use composition, the basis composition, the concentrated
composition and/or the composition for cleaning of the invention, preferably the ready-to-use
solution, in an automated process with the plastic and/or metal substrates may vary
depending upon the degree of contamination but broadly will range between a few seconds
or ≥ 1 minute to ≤ 60 minutes, with > 3 minutes to ≤ 30 minutes being more typical
and most preferred is ≥ 5 minutes to ≤ 15 minutes.
[0206] The following examples are presented to help to illustrate the invention and should
not be construed as limiting the invention.
Example
[0207] The following examples E1 to E6 were carried out to illustrate the improved cleaning
effect, especially the improved prevention of scale build up.
Scale Build Up Test
[0208] This test method provides a basis to assess the scale build up reduction of the composition
of the invention.
Equipment
[0209] 1000 ml beakers for each test condition
Stainless steel test plates of 5 cm x 10 cm x 1mm (V2A)
(The stainless steel test plates are cleaned first with nitric acid and afterwards
with acetone before use)
Stop watch
Drying oven
Analytical balance capable of weighing to the 0.0001 place
Test method for examples 1 to 6
[0210] Six stainless steel test plates (V2A) were first cleaned with nitric acid and afterwards
with with acetone, placed in a drying oven at 90° C for 2 min and allowed to cool
at room temperature. Thereafter the stainless steel test plates (V2A) were scaled
and the weight was recorded.
[0211] A 600 ml beaker was filled up with 600 ml of a 0.75 wt.-% NaOH (50%) aqueous solution
16° dH (dH = German water hardness) containing the composition E1 to E6 in an amount
as shown in table 1. In each beaker a stainless steel test plates of 5 cm x 10 cm
x 1mm (V2A) was dipped vertical along its longest axis for 7 min, so that 90 % of
the outer surface of the stainless steel test plate was completely dipped. Thereafter
the so treated stainless steel test plate (V2A) were dipped vertical along its longest
axis, so that 90 % of the outer surface of the stainless steel test plate was completely
dipped for 2 min into a 600 ml beaker with water of 16° dH (dH = German water hardness)
and placed in a drying zone at 90° C for 2 min and allowed to cool at room temperature.
This sequence was repeated 100 times with the same set of 6 plates. After that the
stainless steel test plates (V2A) were scaled to determined the scale build up, which
is the resulting weight gain difference of the stainless steel test plates (V2A) before
and after the scale build up, see table 1.
Table 1
Scale build up test |
Examples |
Gluconic acid |
sequestering agent*1 |
Polyacrylat MW 4500 |
Chelant*2 |
Chelant*3 |
Scale build up |
|
[ppm] |
[ppm] |
[ppm] |
[ppm] |
[ppm] |
[g/m2] |
1 |
1000 |
- |
- |
- |
- |
12.34 |
2 |
- |
500 |
- |
- |
- |
0.31 |
3 |
- |
- |
730 |
- |
- |
0.1 |
4 |
- |
- |
- |
1053 |
- |
2.42 |
5 |
- |
- |
- |
- |
750 |
3.16 |
6 |
100 |
50 |
70 |
80 |
60 |
0.03 |
*1 = 2-phosphonobutane-1,2,4-tricarboxylic acid
*2 = tetra sodium salt of glutamic acid N, N-diacetic acid (GLUDA)
*3 = trisodium salt of methylglycinediacetic acid (MGDA) |
[0212] Example 6 of table 1 clear demonstrate that the composition for cleaning being formulated
of the five components E6 provides a significant reduction of scale compared to the
use of the single components E1 to E5, although the concentration of all five components
E5 are lower compared to each single component of examples E1 to E5.
Test method for examples 7 to 12
[0213] Six stainless steel test plates (V2A) were first cleaned with nitric acid and afterwards
with acetone, placed in a drying oven at 90° C for 2 min and allowed to cool at room
temperature. Thereafter the stainless steel test plates (V2A) were scaled and the
weight was recorded each.
[0214] Twelve 1000 ml beaker was filled up with 900 ml of a 0.75 wt.-% NaOH (50%) aqueous
solution 16° dH (dH = German water hardness) and a temperature of 50° C containing
the compositions E7 to E12 in an amount as shown in table 2. The upper surface of
said twelve stainless steel test plates of 5 cm x 10 cm x 1mm (V2A) were coated so
that a boundary area of 10% remains not coated. The first six of said stainless steel
test plates were coated with cold milk and the weight was recorded each. The plates
were allowed to dry for about 15 hours at ambient temperature. The second six of said
stainless steel test plates were homogenously coated with 0.2 g lard each. Thereafter
the twelve coated stainless steel test plates were scaled and the weight was recorded
respectively. In each of said twelve beakers, a stainless steel test plates of 5 cm
x 10 cm x 1mm (V2A) were dipped vertical along its longest axis for 5 min and moved
completely out and dipped in again 12 times per minute, so that the coated 90 % of
the outer surface of the stainless steel test plate were completely dipped. Thereafter
the so treated stainless steel test plate (V2A) were removed and allowed to cool at
ambient temperature for 15 hours. After that, the stainless steel test plates (V2A)
were scaled again to determine cold milk and lard removal effectiveness of Examples
7 to 12 as shown in table 2.
Table 2
Cold milk removal and lard removal |
Examples |
Gluconic acid |
sequestering agent*1 |
Polyacrylat MW 4500 |
Chelant*2 |
Chelant*3 |
Cold milk (removal in %) |
Lard (removal in %) |
|
[ppm] |
[ppm] |
[ppm] |
[ppm] |
[ppm] |
7 |
1000 |
- |
- |
- |
- |
95 |
54,7 |
8 |
- |
500 |
- |
- |
- |
97 |
51 |
9 |
- |
- |
730 |
- |
- |
99 |
55,3 |
10 |
- |
- |
- |
1053 |
- |
98 |
49,3 |
11 |
- |
- |
- |
- |
750 |
99 |
52 |
12 |
100 |
50 |
70 |
80 |
60 |
99 |
69 |
*1 = 2-phosphonobutane-1,2,4-tricarboxylic acid
*2 = tetra sodium salt of glutamic acid N, N-diacetic acid (GLUDA)
*3 = trisodium salt of methylglycinediacetic acid (MGDA) |
[0215] Example 12 of table 2 clear demonstrate that the composition for cleaning being formulated
of the five components E12 provides a significant reduction of cold milk and lard
compared to the use of the single components E7 to E11, although the concentration
of all five components E12 are lower compared to each single component of examples
E7 to E11.
Table 3
Acidic compositions for cleaning |
Examples |
Gluconic acid |
sequestering agent*4 |
Polyacrylat MW 4500 |
Chelant*5 |
Chelant*6 |
|
[weight.-%] |
[weight.-%] |
[weight.-%] |
[weight.-%] |
[weight.-%] |
13 |
7.5 |
2.5 |
3.15 |
3.0 |
2.4 |
14 |
7.5 |
2.5 |
6.75 |
3.0 |
2.4 |
15 |
7.5 |
2.5 |
7.30 |
3.0 |
2.4 |
16 |
7.5 |
2.5 |
3.15 |
3.0 |
2.4 |
17 |
7.5 |
2.5 |
3.15 |
3.8 |
4 |
18 |
7.5 |
10 |
3.15 |
3.0 |
2.4 |
Water is added to examples E13 to E18 add. 100 wt.-%
*4 = 2-phosphonobutane-1,2,4-tricarboxylic acid
*5 = glutamic acid N, N-diacetic acid (GLUDA)
*6 = methylglycinediacetic acid (MGDA) |
Table 4
Alkaline compositions for cleaning |
Examples |
Gluconic acid |
sequestering agent*7 |
Polyacrylat MW 4500 |
Chelant*2 |
Chelant*3 |
NaOH |
|
[weight.-%] |
[weight.-%] |
[weight.-%] |
[weight.-%] |
[weight.-%] |
|
19 |
0.65 |
0.314 |
0.396 |
0.38 |
0.3 |
19 |
20 |
1.0 |
0.5 |
0.63 |
0.6 |
0.48 |
19 |
21 |
0.65 |
0.314 |
0.396 |
0.38 |
0.3 |
37.5 |
22 |
1.0 |
0.5 |
0.63 |
0.6 |
0.48 |
37.5 |
Water is added to examples E19 to E22 add. 100 wt.-%
*7 = Sodium salt of 2-phosphonobutane-1,2,4-tricarboxylic acid
*2 = tetra sodium salt of glutamic acid N, N-diacetic acid (GLUDA)
*3 = trisodium salt of methylglycinediacetic acid (MGDA) |
Foam Formation Test
[0216] This test method provides a basis to assess the foam formation properties of the
liquid alkaline cleaning composition of the invention.
Foam testing equipment
[0217] 250 ml long-necked glass cylinder
Rubber stopper to close the long-necked glass cylinder
Test method
[0218] 100 ml of the cleaning compositions E6, E12 and E13 to E22 were filled each into
a long-necked glass cylinder, respectively. The long-necked glass cylinder was then
turned up and down 20 x times in 20 seconds. Thereafter the glass cylinder was placed
and the foam depth of each cylinder was scaled in ml to determine the foam formation.
This test was carried out at a temperature of the cleaning solution at ambient temperature,
50° C and 80° C.
[0219] For none of said tested solutions a foam formation could be observed. Thus, the cleaning
composition of the invention can be regarded as a non-foaming composition.
[0220] Most preferred is the use of the composition for cleaning, preferably the concentrated
and/or ready to use solution, of the invention, to clean hard surfaces and/or soft
surfaces, preferably in an automated cleaning processing, for example of metal and/or
plastic articles.
[0221] It should be noted that, as used in this specification and the appended claims, the
singular forms "a", "an" and "the" include plural referents unless the content clearly
dictates otherwise.
[0222] Thus, for example, reference to a composition containing "a compound" includes a
mixture of two or more compounds. It should also be noted that the term "or" is generally
employed in its sense including "and/or" unless the content clearly dictates otherwise.
All publications and patent applications in this specification are indicative of the
level of ordinary skill in the art to which this invention pertains. The invention
has been described to various specific and preferred embodiments and techniques.
1. A composition for cleaning comprising:
a) two water-soluble biodegradable aminopolycarboxylate chelants of glutamic acid
N, N-diacetic acid and methylglycinediacetic acid;
b) a gluconate;
c) at least one sequestering agent of a phosphonate;
d) at least one liquid conditioner polymer of monomers of water-soluble monoethylenically
unsaturated C3 to C8-carboxylates and/or of water-soluble monoethylenically unsaturated C3 to C8-carboxylic acids;
e) at least one solvent; wherein the weight ratio of the gluconate and/or gluconic
acid to acid and/or salt of glutamic acid N,N-diacetic acid and methylglycinediacetic
acid is in the range from 1 : 1 to 1 : 5.
2. The composition of claim 1, comprising glutamic acid N,N-diacetic acid and methylglycinediacetic
acid, wherein the weight ratio of the gluconate and/or gluconic acid to the first
water-soluble salt and/or acid of glutamic acid N,N-diacetic acid is in the range
from 1 : 0.1 to 1 : 4;
and the weight ratio of the gluconate and/or gluconic acid to the second salt and/or
acid of methylglycinediacetic acid is in the range from 1 : 0.1 to 1 : 4; and most
preferred the first and second water-soluble aminopolycarboxylate and/or aminopolycarboxylic
acid chelants of glutamic acid N, N-diacetic acid and methylglycinediacetic acid are
in the range from 1 : 0.2 to 1 : 2.
3. The composition of claims 1 or 2, wherein the phosphonate sequestering agent is selected
from the group comprising an acid and/or a salt of phosphonic acid, phosphonocarboxylic
acid, 1-hydroxyethylidene -1,1,-diphosphonic acid (HEDP), 2-phosphonobutane-1,2,4-tricarboxylic
acid and mixtures thereof, most preferred is the salt a sodium salt.
4. The composition of claims 1 to 3, wherein the liquid conditioner is selected from
the group of a salt of and/or an acid substituted polymers of monomers of monoethylenically
unsaturated C3-C8-carboxylic acid, preferably from a C3-C4-monocarboxylic acid, acrylic acid, methacrylic acid, polyitaconic acid, polymaleic
acid, and mixtures thereof, most preferred is a polyacrylic acid or polyacrylate.
5. The composition of claims 1 to 4, wherein the solvent is selected from the group comprising
water, alcohols, glycols, glycol ethers, esters, preferably ethanol, methanol, propanol,
propan-2-ol, 2-butoxy ethanol, 1-decanol, benzyl alcohol, glycerin, monoethanolamine
and mixtures thereof, most preferred is water.
6. The composition of claims 1 to 5, wherein the composition comprises at least one source
of alkalinity selected from the group of alkali metal hydroxides, alkali metal salts,
phosphates, amines, and mixtures thereof, preferably alkali metal hydroxides including
sodium hydroxide, potassium hydroxide, and lithium hydroxide, and mixtures thereof;
and most preferred is sodium hydroxide.
7. The composition of claims 1 to 6, wherein the composition comprises at least one corrosion
inhibitor selected from the group comprising silicate, sodium silicate, calcium acetate,
calcium chloride, calcium gluconate, calcium phosphate, calcium borate, calcium carbonate,
calcium citrate, calcium lactate, calcium sulfate, calcium tartrate, benzotriazole,
1,2,3-benzotriazole and mixtures thereof.
8. The composition of claims 1 to 7, wherein the composition comprises at least one tenside
selected from the group nonionic tenside, cationic tenside, anionic tenside, amphoteric
tenside and mixtures thereof.
9. The composition of claims 1 to 8, wherein the composition comprises at least one salt
selected from the group of lithium chloride, lithium iodide, sodium chloride, sodium
iodide, potassium iodide, potassium chloride, potassium iodide, sodium sulphate, sodium
acetate, potassium acetate, sodium nitrate, sodium phosphate and mixtures thereof.
10. The composition of claims 1 to 9, wherein
- the composition for cleaning has a pH value in the range of ≥ 1 pH to ≤ 14 pH, preferably
in the range of ≥ 1.5 pH to ≤ 13.8 pH, further preferred in the range of ≥ 2 pH to
≤ 13.5 pH, also preferred in the range of ≥ 2.5 pH to ≤ 13.0 pH and in addition preferred
in the range of ≥ 3 pH to ≤ 12.9 pH;
- the basis composition for cleaning has a pH value in the range of ≥ 1 pH to ≤ 14
pH, preferably in the range of ≥ 2 pH to ≤ 13.8 pH, further preferred in the range
of ≥ 2.5 pH to ≤ 13.5 pH, also preferred in the range of ≥ 2.8 pH to ≤ 12.5 pH and
in addition preferred in the range of ≥ 2.9 pH to ≤ 12 pH;
- the concentrated solution has a pH value in the range of ≥ 5 pH to ≤ 14 pH, preferably
in the range of ≥ 5.5 pH to ≤ 13,8 pH, further preferred in the range of ≥ 7 pH to
≤ 13,6 pH and also preferred in the range of ≥ 9 pH to ≤ 113,5 pH; and
- the ready to use solution has a pH value in the range of ≥ 7 pH to ≤ 14 pH, preferred
in the range of ≥ 8 pH to ≤ 13,8 pH, further preferred in the range of ≥ 9 pH to ≤
13,6 pH, in addition preferred in the range of ≥ 10 pH to ≤ 13,5 pH and also preferred
in the range of ≥ 10.5 pH to ≤ 13,4 pH.
11. The composition of claims 1 to 10, wherein the composition comprises:
- > 0 wt.-% to ≤ 26 wt.-%, preferably > 0.04 wt.-% to ≤ 24 wt.-%, further preferred
> 0.4 wt.-% to ≤ 22 wt.-%, and more preferred > 0.6 wt.-% to ≤ 20 wt.-%, of two water-soluble
aminopolycarboxylate and/or aminopolycarboxylic acid chelants of glutamic acid N,
N-diacetic acid and methylglycinediacetic acid;
- > 0 wt.-% to ≤ 20 wt.-%, preferably ≥ 0.25 wt.-% to ≤ 19 wt.-%, further preferred
≥ 0.5 wt.-% to ≤ 17.5 wt.-%, and more preferred ≥ 0.75 wt.-% to ≤ 15 wt.-%, of at
least one gluconate and/or gluconic acid;
- > 0 wt.-% to ≤ 32.5 wt.-%, preferably ≥ 0.05 wt.-% to ≤ 30 wt.-%, further preferred
≥ 0.25 wt.-% to ≤ 29 wt.-%, and more preferred ≥ 0.5 wt.-% to ≤ 27.5 wt.-%, of at
least one phosphonate sequestering agent;
- > 0 wt.-% to ≤ 13.5 wt.-%, preferably ≥ 0.045 wt.-% to ≤ 11.25 wt.-%, further preferred
≥ 0.225 wt.-% to ≤ 9 wt.-%, and more preferred ≥ 0.45 wt.-% to ≤ 15 wt.-%, at least
one liquid conditioner polymer of monomers of water-soluble monoethylenically unsaturated
C3-C8-carboxylates and/or unsaturated C3-C8-carboxylic acid;
- ≥ 0 wt.-% to ≤ 20 wt.-%, preferably ≥ 1 wt.-% to ≤ 18 wt.-%, further preferred ≥
1.5 wt.-% to ≤ 15 wt.-%, and more preferred ≥ 2 wt.-% to ≤ 12 wt.-%, of at least one
source of alkalinity;
- ≥ 0 wt.-% to ≤ 12 wt.-%, preferably ≥ 0.01 wt.-% to ≤ 10 wt.-%, further preferred
≥ 0.025 wt.-% to ≤ 9 wt.-%, and more preferred ≥ 0.03 wt.-% to ≤ 8 wt.-%, of at least
one corrosion inhibitor;
- ≥ 0 wt.-% to ≤ 10 wt.-%, preferably ≥ 0.01 wt.-% to ≤ 9 wt.-%, further preferred
≥ 0.1 wt.-% to ≤ 8.5 wt.-%, and more preferred ≥ 0.5 wt.-% to ≤ 8 wt.-%, of at least
one salt; and
the solvent is added add. 100 wt.-%; wherein the weight-% of the components are based
on the total weight of the composition.
12. The basis composition of claims 1 to 11, wherein the basis composition solution comprise:
- > 0 wt.-% to ≤ 26 wt.-%, preferably ≥ 0.04 wt.-% to ≤ 24 wt.-%, further preferred
≥ 0.4 wt.-% to ≤ 22 wt.-%, and more preferred ≥ 0.6 wt.-% to ≤ 20 wt.-%, of at least
one water-soluble acid or salt of methylglycine-N,N-diacetate and glutamic acid-N,N-diacetate;
- > 0 wt.-% to ≤ 20 wt.-%, preferably ≥ 0.25 wt.-% to ≤ 19 wt.-%, further preferred
> 0.5 wt.-% to ≤ 17.5 wt.-%, and more preferred ≥ 0.75 wt.-% to ≤ 15 wt.-%, of an
acid or a salt of gluconic acid;
- > 0 wt.-% to ≤ 32.5 wt.-%, preferably ≥ 0.05 wt.-% to ≤ 30 wt.-%, further preferred
≥ 0.25 wt.-% to ≤ 29 wt.-%, and more preferred > 0.5 wt.-% to ≤ 27.5 wt.-%, of at
least one sequestering agent, of a phosphonate and/or phosphonic acid, more preferred
an acid or a salt of 2-phosphonobutane-1,2,4-tricarboxylic acid;
- > 0 wt.-% to ≤ 13.5 wt.-%, preferably ≥ 0.045 wt.-% to ≤ 11.25 wt.-%, further preferred
≥ 0.225 wt.-% to ≤ 9 wt.-%, and more preferred ≥ 0.45 wt.-% to ≤ 15 wt.-%, at least
one liquid conditioner polymer of monomers of water-soluble monoethylenically unsaturated
C3-C8-carboxylates and/or unsaturated C3-C8-carboxylic acids, preferably an acid or a salt of an acrylic polymer;
≥ 0 wt.-% to ≤ 20 wt.-%, preferably ≥ 1 wt.-% to ≤ 18 wt.-%, further preferred ≥ 1.5
wt.-% to ≤ 15 wt.-%, and more preferred ≥ 2 wt.-% to ≤ 12 wt.-%, of at least one source
of alkalinity; and a solvent is added add. 100 wt.-%; wherein the weight-% of the
components are based on the total weight of the basis composition.
13. The composition of claims 1 to 12, wherein the concentrated composition solution comprising:
- > 0 wt.-% to ≤ 10 wt.-%, preferably ≥ 2x10-4 wt.-% to ≤ 9.60 wt.-%, further preferred ≥ 2x10-3 wt.-% to ≤ 8.80 wt.-%, and more preferred ≥ 3x10-3 wt.-% to ≤ 8.00 wt.-%, of two water-soluble aminopolycarboxylate and/or aminopolycarboxylic
acid chelants of methylglycine-N,N-diacetate and glutamic acid-N,N-diacetate;
- > 0 wt.-% to ≤ 8.0 wt.-%, preferably ≥ 1.3x10-3 wt.-% to ≤ 7.6 wt.-%, further preferred ≥ 2.5x10-3 wt.-% to ≤ 7.0 wt.-%, and more preferred > 0.037 wt.-% to ≤ 6.0 wt.-%, of an acid
or a salt of gluconic acid;
- > 0 wt.-% to ≤ 13.0 wt.-%, preferably ≥ 2.5x10-4 wt.-% to ≤ 12.0 wt.-%, further preferred > 1.25x10-3 wt.-% to ≤ 11.6 wt.-%, and more preferred ≥ 2.5x10-3 wt.-% to ≤ 11.0 wt.-%, of at least one sequestering agent of a phosphonate and/or
phosphonic acid, more preferred an acid or a salt of 2-phosphonobutane-1,2,4-tricarboxylic
acid;
- > 0 wt.-% to ≤ 5.4 wt.-%, preferably ≥ 2.5x10-4 wt.-% to ≤ 4.5 wt.-%, further preferred > 1.125x10-3 wt.-% to ≤ 3.6 wt.-%, and more preferred ≥ 2.5x10-3 wt.-% to ≤ 2.7 wt.-%, at least one liquid conditioner polymer of monomers of water-soluble
monoethylenically unsaturated C3-C8-carboxylates and/or unsaturated C3-C8-carboxylic acids, preferably an acid or a salt of an acrylic polymer;
- ≥ 0 wt.-% to ≤ 49.5 wt.-%, preferably ≥ 0.5 wt.-% to ≤ 47.5 wt.-%, further preferred
≥ 0.75 wt.-% to ≤ 45 wt.-%, and more preferred ≥ 1 wt.-% to ≤ 42.5 wt.-%, of at least
one source of alkalinity, preferably sodium hydroxide;
- ≥ 0 wt.-% to ≤ 4.8 wt.-%, preferably ≥ 5x10-5 wt.-% to ≤ 3.6 wt.-%, further preferred ≥ 1.25x10-4 wt.-% to ≤ 3.4 wt.-%, and more preferred ≥ 1.5x10-4 wt.-% to ≤ 3.2 wt.-%, of at least one corrosion inhibitor, preferably a disilicate;
- > 0 wt.-% to ≤ 4.0 wt.-%, preferably ≥ 5x10-5 wt.-% to ≤ 3.6 wt.-%, further preferred > 5x10-4 wt.-% to ≤ 3.4 wt.-%, and more preferred ≥ 2.5x10-3 wt.-% to ≤ 3.2 wt.-%, of at least one salt, preferably potassium iodide; and the
solvent is added add. 100 wt.-%; wherein the weight-% of the components are based
on the total weight of the composition.
14. The composition of claims 1 to 13, wherein the ready-to-use composition solution comprising:
- > 0 wt.-% to ≤ 1.04 wt.-%, preferably ≥ 2x10-6 wt.-% to ≤ 0.96 wt.-%, further preferred ≥ 2x10-5 wt.-% to ≤ 0.88 wt.-%, and more preferred ≥ 3x10-5 wt.-% to ≤ 0.80 wt.-%, of two water-soluble aminopolycarboxylate and/or aminopolycarboxylic
acid chelants of methylglycine-N,N-diacetate and glutamic acid-N,N-diacetate;
- > 0 wt.-% to ≤ 0.80 wt.-%, preferably ≥ 1.25x10-5 wt.-% to ≤ 0.76 wt.-%, further preferred ≥ 2.5x10-5 wt.-% to ≤ 0.70 wt.-%, and more preferred ≥ 3.75x10-5 wt.-% to ≤ 0.60 wt.-%, of an acid or a salt of gluconic acid;
- > 0 wt.-% to ≤ 1.30 wt.-%, preferably ≥ 2.5x10-6 wt.-% to ≤ 1.20 wt.-%, further preferred ≥ 1.25x10-5 wt.-% to ≤ 1.16 wt.-%, and more preferred ≥ 2.5x10-5 wt.-% to ≤ 1.10 wt.-%, of at least one sequestering agent of a phosphonate and/or
phosphonic acid, more preferred an acid or a salt of 2-phosphonobutane-1,2,4-tricarboxylic
acid;
- > 0 wt.-% to ≤ 0.54 wt.-%, preferably ≥ 2.5x10-6 wt.-% to ≤ 0.46 wt.-%, further preferred ≥ 1.25x10-5 wt.-% to ≤ 0.36 wt.-%, and more preferred ≥ 2.5x10-5 wt.-% to ≤ 0.27 wt.-%, at least one liquid conditioner polymer of monomers of water-soluble
monoethylenically unsaturated C3-C8-carboxylates and/or unsaturated C3-C8-carboxylic acids, preferably an acid or a salt of an acrylic polymer;
- ≥ 0 wt.-% to ≤ 4.99 wt.-%, preferably ≥ 0.05 wt.-% to ≤ 47.5 wt.-%, further preferred
≥ 0.075 wt.-% to ≤ 4.50 wt.-%, and more preferred ≥ 0.10 wt.-% to ≤ 4.25 wt.-%, of
at least one source of alkalinity, preferably sodium hydroxide;
- > 0 wt.-% to ≤ 0.48 wt.-%, preferably ≥ 5x10-6 wt.-% to ≤ 0.36 wt.-%, further preferred ≥ 5x10-5 wt.-% to ≤ 0.34 wt.-%, and more preferred ≥ 2.5x10-4 wt.-% to ≤ 0.32 wt.-%, of at least one corrosion inhibitor, preferably a disilicate;
- ≥ 0 wt.-% to ≤ 0.4 wt.-%, preferably ≥ 5x10-6 wt.-% to ≤ 0.36 wt.-%, further preferred ≥ 5x10-5 wt.-% to ≤ 0.34 wt.-%, and more preferred ≥ 2.5x10-4 wt.-% to ≤ 0.32 wt.-%, of at least one salt, preferably potassium iodide; and the
solvent is added add. 100 wt.-%; wherein the weight-% of the components are based
on the total weight of the composition.
15. Use of the composition of claims 1 to 14 for cleaning hard surfaces and soft surfaces.
1. Reinigungszusammensetzung, umfassend:
a) zwei wasserlösliche biologisch abbaubare Aminopolycarboxylat-Chelatbildner von
Glutaminsäure-N,N-diessigsäure und Methylglycindiessigsäure;
b) ein Gluconat;
c) mindestens ein Sequestrierungsmittel eines Phosphonats;
d) mindestens ein flüssiges Konditionierungspolymer von Monomeren von wasserlöslichen
monoethylenisch ungesättigten C3- bis C8-Carboxylaten und/oder wasserlöslichen monoethylenisch ungesättigten C3- bis C8-Carbonsäuren;
e) mindestens ein Lösungsmittel; wobei das Gewichtsverhältnis des Gluconats und/oder
der Gluconsäure zu Säure und/oder Salz von Glutamin-N,N-diessigsäure und Methylglycindiessigsäure
im Bereich von 1:1 bis 1:5 liegt.
2. Zusammensetzung nach Anspruch 1, umfassend Glutaminsäure-N,N-diessigsäure und Methylglycindiessigsäure,
wobei das Gewichtsverhältnis des Gluconats und/oder der Gluconsäure zu dem ersten
wasserlöslichen Salz und/oder der Säure von Glutaminsäure-N,N-diessigsäure im Bereich
von 1:0,1 bis 1:4 liegt;
und das Gewichtsverhältnis des Gluconats und/oder der Gluconsäure zu dem zweiten Salz
und/oder der Säure von Methylglycindiessigsäure im Bereich von 1:0,1 bis 1:4 liegt;
und am meisten bevorzugt die ersten und zweiten wasserlöslichen Aminopolycarboxylat-
und/oder Aminopolycarbonsäure-Chelatbildner von Glutaminsäure-N,N-diessigsäure und
Methylglycindiessigsäure im Bereich von 1:0,2 bis 1:2 liegen.
3. Zusammensetzung nach den Ansprüchen 1 oder 2, wobei das Phosphonat-Sequestrierungsmittel
ausgewählt ist aus der Gruppe umfassend eine Säure und/oder ein Salz von Phosphonsäure,
Phosphonocarbonsäure, 1-Hydroxyethyliden-1,1-diphosphonsäure (HEDP), 2-Phosphonobutan-1,2,4-tricarbonsäure
und Mischungen davon, wobei das Salz am meisten bevorzugt ein Natriumsalz ist.
4. Zusammensetzung nach den Ansprüchen 1 bis 3, wobei das flüssige Konditionierungsmittel
ausgewählt ist aus der Gruppe eines Salzes und/oder einer Säure von substituierten
Polymeren von Monomeren von monoethylenisch ungesättigter C3-C8-Carbonsäure, vorzugsweise einer C3-C4-Monocarbonsäure, Acrylsäure, Methacrylsäure, Polyitaconsäure, Polymaleinsäure und
Mischungen davon, und am meisten bevorzugt eine Polyacrylsäure oder ein Polyacrylat
ist.
5. Zusammensetzung nach einem der Ansprüche 1 bis 4, wobei das Lösungsmittel ausgewählt
ist aus der Gruppe umfassend Wasser, Alkohole, Glykole, Glykolether, Ester, vorzugsweise
Ethanol, Methanol, Propanol, Propan-2-ol, 2-Butoxyethanol, 1-Decanol, Benzylalkohol,
Glycerin, Monoethanolamin und Mischungen davon und am meisten bevorzugt Wasser ist.
6. Zusammensetzung nach den Ansprüchen 1 bis 5, wobei die Zusammensetzung mindestens
eine Quelle für Alkalinität ausgewählt aus der Gruppe von Alkalimetallhydroxiden,
Alkalimetallsalzen, Phosphaten, Aminen und Mischungen davon umfasst, vorzugsweise
Alkalimetallhydroxiden einschließlich Natriumhydroxid, Kaliumhydroxid und Lithiumhydroxid
und Mischungen davon und am meisten bevorzugt Natriumhydroxid ist.
7. Zusammensetzung nach den Ansprüchen 1 bis 6, wobei die Zusammensetzung mindestens
einen Korrosionsinhibitor ausgewählt aus der Gruppe umfassend Silikat, Natriumsilikat,
Calciumacetat, Calciumchlorid, Calciumgluconat, Calciumphosphat, Calciumborat, Calciumcarbonat,
Calciumcitrat, Calciumlactat, Calciumsulfat, Calciumtartrat, Benzotriazol, 1,2,3-Benzotriazol
und Mischungen davon umfasst.
8. Zusammensetzung nach den Ansprüchen 1 bis 7, wobei die Zusammensetzung mindestens
ein Tensid ausgewählt aus der Gruppe umfassend nichtionisches Tensid, kationisches
Tensid, anionisches Tensid, amphoteres Tensid und Mischungen davon umfasst.
9. Zusammensetzung nach den Ansprüchen 1 bis 8, wobei die Zusammensetzung mindestens
ein Salz ausgewählt aus der Gruppe von Lithiumchlorid, Lithiumiodid, Natriumchlorid,
Natriumiodid, Kaliumiodid, Kaliumchlorid, Kaliumiodid, Natriumsulfat, Natriumacetat,
Kaliumacetat, Natriumnitrat, Natriumphosphat und Mischungen davon umfasst.
10. Zusammensetzung nach den Ansprüchen 1 bis 9, wobei
- die Reinigungszusammensetzung einen pH-Wert im Bereich von ≥ 1 pH bis ≤ 14 pH, vorzugsweise
im Bereich von ≥ 1,5 pH bis ≤ 13,8 pH, bevorzugter im Bereich von ≥ 2 pH bis ≤ 13,5
pH, ebenfalls bevorzugt im Bereich von ≥ 2,5 pH bis ≤ 13,0 pH und zusätzlich bevorzugt
im Bereich von ≥ 3 pH bis ≤ 12,9 pH hat;
- die Basisreinigungszusammensetzung einen pH-Wert im Bereich von ≥ 1 pH bis ≤ 14
pH, vorzugsweise im Bereich von ≥ 2 pH bis ≤ 13,8 pH, bevorzugter im Bereich von ≥
2,5 pH bis ≤ 13,5 pH, ebenfalls bevorzugt im Bereich von ≥ 2,8 pH bis ≥ 12,5 pH und
zusätzlich bevorzugt im Bereich von ≥ 2,9 pH bis ≤ 12 pH hat;
- die konzentrierte Lösung einen pH-Wert im Bereich von ≥ 5 pH bis ≤ 14 pH, vorzugsweise
im Bereich von ≥ 5,5 pH bis ≤ 13,8 pH, bevorzugter im Bereich von ≥ 7 pH bis ≤ 13,6
pH und ebenfalls bevorzugt im Bereich von ≥ 9 pH bis ≤ 113,5 pH hat;
- die gebrauchsfertige Lösung einen pH-Wert im Bereich von ≥ 7 pH bis ≤ 14 pH, vorzugsweise
im Bereich von ≥ 8 pH bis ≤ 13,8 pH, bevorzugter im Bereich von ≥ 9 pH bis ≤ 13,6
pH, außerdem bevorzugt im Bereich von ≥ 10 pH bis ≤ 13,5 pH und ebenfalls bevorzugt
im Bereich von ≥ 10,5 pH bis ≤ 13,4 pH hat.
11. Zusammensetzung nach den Ansprüchen 1 bis 10, wobei die Zusammensetzung umfasst:
- > 0 Gew.% bis ≤ 26 Gew.%, vorzugsweise ≥ 0,04 Gew.% bis ≤ 24 Gew.%, bevorzugter
≥ 0,4 Gew.% bis ≤ 22 Gew.% und noch bevorzugter ≥ 0,6 Gew.% bis ≤ 20 Gew.% von zwei
wasserlöslichen Aminopolycarboxylat- und/oder Aminopolycarbonsäure-Chelatbildner von
Glutaminsäure-N,N-diessigsäure und Methylglycindiessigsäure;
- > 0 Gew.% bis ≤ 20 Gew.%, vorzugsweise ≥ 0,25 Gew.% bis ≤ 19 Gew.%, bevorzugter
≥ 0,5 Gew.% bis ≤ 17,5 Gew.% und noch bevorzugter ≥ 0,75 Gew.% bis ≤ 15 Gew.% von
mindestens einem Gluconat und/oder einer Gluconsäure;
- > 0 Gew.% bis ≤ 32,5 Gew.%, vorzugsweise ≥ 0,05 Gew.% bis ≤ 30 Gew.%, bevorzugter
≥ 0,25 Gew.% bis ≤ 29 Gew.% und noch bevorzugter ≥ 0,5 Gew.% bis ≤ 27,5 Gew.% von
mindestens einem Phosphonat-Sequestrierungsmittel;
- > 0 Gew.% bis ≤ 13,5 Gew.%, vorzugsweise ≥ 0,045 Gew.% bis ≤ 11,25 Gew.%, bevorzugter
≥ 0,225 Gew.% bis ≤ 9 Gew.% und noch bevorzugter ≥ 0,45 Gew.% bis ≤ 15 Gew.% von mindestens
einem flüssigen Konditionierungspolymer von Monomeren von wasserlöslichen monoethylenisch
ungesättigten C3-C8-Carboxylaten und/oder ungesättigter C3-C8-Carbonsäure;
- ≥ 0 Gew.% bis ≤ 20 Gew.%, vorzugsweise ≥ 1 Gew.% bis ≤ 18 Gew.%, bevorzugter ≥ 1,5
Gew.% bis ≤ 15 Gew.% und noch bevorzugter ≥ 2 Gew.% bis ≤ 12 Gew.% von mindestens
einer Alkalinitätsquelle;
- ≥ 0 Gew.% bis ≤ 12 Gew.%, vorzugsweise ≥ 0,01 Gew.% bis ≤ 10 Gew.%, bevorzugter
≥ 0,025 Gew.% bis ≤ 9 Gew.% und noch bevorzugter ≥ 0,03 Gew.% bis ≤ 8 Gew.% von mindestens
einem Korrosionsinhibitor;
- ≥ 0 Gew.% bis ≤ 10 Gew.%, vorzugsweise ≥ 0,01 Gew.% bis ≤ 9 Gew.%, bevorzugter ≥
0,1 Gew.% bis ≤ 8,5 Gew.% und noch bevorzugter ≥ 0,5 Gew.% bis ≤ 8 Gew.% von mindestens
einem Salz; und
wobei das Lösungsmittel bis auf 100 Gew.% zugegeben wird, wobei sich die Gew.% der
Komponenten auf das Gesamtgewicht der Zusammensetzung beziehen.
12. Basiszusammensetzung nach den Ansprüchen 1 bis 11, wobei die Basiszusammensetzung
umfasst:
- > 0 Gew.% bis ≤ 26 Gew.%, vorzugsweise ≥ 0,04 Gew.% bis ≤ 24 Gew.%, bevorzugter
≥ 0,4 Gew.% bis ≤ 22 Gew.% und noch bevorzugter ≥ 0,6 Gew.% bis ≤ 20 Gew.% von mindestens
einer wasserlöslichen Säure oder einem wasserlöslichen Salz von Methylglycin-N,N-diacetat
und Glutaminsäure-N,N-diacetat;
- > 0 Gew.% bis ≤ 20 Gew.%, vorzugsweise ≥ 0,25 Gew.% bis ≤ 19 Gew.%, bevorzugter
≥ 0,5 Gew.% bis ≤ 17,5 Gew.% und noch bevorzugter ≥ 0,75 Gew.% bis ≤ 15 Gew.% von
einer Säure oder einem Salz von Gluconsäure;
- > 0 Gew.% bis ≤ 32,5 Gew.%, vorzugsweise ≥ 0,05 Gew.% bis ≤ 30 Gew.%, bevorzugter
≥ 0,25 Gew.% bis ≤ 29 Gew.% und noch bevorzugter ≥ 0,5 Gew.% bis ≤ 27,5 Gew.% von
mindestens einem Sequestrierungsmittel von einem Phosphonat und/oder einer Phosphonsäure,
bevorzugter einer Säure oder einem Salz von 2-Phosphonobutan-1,2,4-tricarbonsäure;
- > 0 Gew.% bis ≤ 13,5 Gew.%, vorzugsweise ≥ 0,045 Gew.% bis ≤ 11,25 Gew.%, bevorzugter
≥ 0,225 Gew.% bis ≤ 9 Gew.% und noch bevorzugter ≥ 0,45 Gew.% bis ≤ 15 Gew.% von mindestens
einem flüssigen Konditionierungspolymer von Monomeren von wasserlöslichen monoethylenisch
ungesättigten C3-C8-Carboxylaten und/oder ungesättigten C3-C8-Carbonsäuren, vorzugsweise einer Säure oder einem Salz eines Acrylpolymers;
- ≥ 0 Gew.% bis ≤ 20 Gew.%, vorzugsweise ≥ 1 Gew.% bis ≤ 18 Gew.%, bevorzugter ≥ 1,5
Gew.% bis ≤ 15 Gew.% und noch bevorzugter ≥ 2 Gew.% bis ≤ 12 Gew.% von mindestens
einer Alkalinitätsquelle; und wobei ein Lösungsmittel bis auf 100 Gew.% zugesetzt
wird; wobei sich die Gew.% der Komponenten auf das Gesamtgewicht der Basiszusammensetzung
beziehen.
13. Zusammensetzung nach den Ansprüchen 1 bis 12, wobei die konzentrierte Lösung der Zusammensetzung
umfasst:
- > 0 Gew.% bis ≤ 10 Gew.%, vorzugsweise ≥ 2x10-4 Gew.% bis ≤ 9,60 Gew.%, bevorzugter ≥ 2x10-3 Gew.% bis ≤ 8,80 Gew.% und noch bevorzugter ≥ 3x10-3 Gew.% bis ≤ 8,00 Gew.% von zwei wasserlöslichen Aminopolycarboxylat- und/oder Aminopolycarbonsäure-Chelatbildnern
von Methylglycin-N,N-diacetat und Glutaminsäure-N,N-diacetat;
- > 0 Gew.% bis ≤ 8,0 Gew.%, vorzugsweise ≥ 1,3x10-3 Gew.% bis ≤ 7,6 Gew.%, bevorzugter ≥ 2,5x10-3 Gew.% bis ≤ 7,0 Gew.% und noch bevorzugter ≥ 0,037 Gew.% bis ≤ 6,0 Gew.% von einer
Säure oder einem Salz von Gluconsäure;
- > 0 Gew.% bis ≤ 13,0 Gew.%, vorzugsweise ≥ 2,5x10-4 Gew.% bis ≤ 12,0 Gew.%, bevorzugter ≥ 1,25x10-3 Gew.% bis ≤ 11,6 Gew.% und noch bevorzugter ≥ 2,5x10-3 Gew.% bis ≤ 11,0 Gew.% von mindestens einem Sequestrierungsmittel von einem Phosphonat
und/oder einer Phosphonsäure, bevorzugter einer Säure oder einem Salz von 2-Phosphonobutan-1,2,4-tricarbonsäure;
- > 0 Gew.% bis ≤ 5,4 Gew.%, vorzugsweise ≥ 2,5x10-4 Gew.% bis ≤ 4,5 Gew.%, bevorzugter ≥ 1,125x10-3 Gew.% bis ≤ 3,6 Gew.% und noch bevorzugter ≥ 2,5x10-3 Gew.% bis ≤ 2,7 Gew.% von mindestens einem flüssigen Konditionierungspolymer von
Monomeren von wasserlöslichen monoethylenisch ungesättigten C3-C8-Carboxylaten und/oder ungesättigten C3-C8-Carbonsäuren, vorzugsweise einer Säure oder einem Salz eines Acrylpolymers;
- ≥ 0 Gew.% bis ≤ 49,5 Gew.%, vorzugsweise ≥ 0,5 Gew.% bis ≤ 47,5 Gew.%, bevorzugter
≥ 0,75 Gew.% bis ≤ 45 Gew.% und noch bevorzugter ≥ 1 Gew.% bis ≤ 42,5 Gew.% von mindestens
einer Alkalinitätsquelle, vorzugsweise Natriumhydroxid;
- ≥ 0 Gew.% bis ≤ 4,8 Gew.%, vorzugsweise ≥ 5x10-5 Gew.% bis ≤ 3,6 Gew.%, bevorzugter ≥ 1,25x10-4 Gew.% bis ≤ 3,4 Gew.% und noch bevorzugter ≥ 1,5x10-4 Gew.% bis ≤ 3,2 Gew.% von mindestens einem Korrosionsinhibitor, vorzugsweise einem
Disilikat;
- ≥ 0 Gew.% bis ≤ 4,0 Gew.%, vorzugsweise ≥ 5x10-5 Gew.% bis ≤ 3,6 Gew.%, bevorzugter ≥ 5x10-4 Gew.% bis ≤ 3,4 Gew.% und noch bevorzugter ≥ 2,5x10-3 Gew.% bis ≤ 3,2 Gew.% von mindestens einem Salz, vorzugsweise Kaliumiodid; und wobei
das Lösungsmittel bis auf 100 Gew.% zugegeben wird, wobei sich die Gew.% der Komponenten
auf das Gesamtgewicht der Zusammensetzung beziehen.
14. Zusammensetzung nach den Ansprüchen 1 bis 13, wobei die gebrauchsfertige Lösung der
Zusammensetzung umfasst:
- > 0 Gew.% bis ≤ 1,04 Gew.%, vorzugsweise ≥ 2x10-6 Gew.% bis ≤ 0,96 Gew.%, bevorzugter ≥ 2x10-5 Gew.% bis ≤ 0,88 Gew.% und noch bevorzugter ≥ 3x10-5 Gew.% bis ≤ 0,80 Gew.% von zwei wasserlöslichen Aminopolycarboxylat- und/oder Aminopolycarbonsäure-Chelatbildnern
von Methylglycin-N,N-diacetat und Glutaminsäure-N,N-diacetat;
- > 0 Gew.% bis ≤ 0,80 Gew.%, vorzugsweise ≥ 1,25x10-5 Gew.% bis ≤ 0,76 Gew.%, bevorzugter ≥ 2,5x10-5 Gew.% bis ≤ 0,70 Gew.% und noch bevorzugter ≥ 3,75x10-5 Gew.% bis ≤ 0,60 Gew.% von mindestens einer Säure oder einem Salz von Gluconsäure;
- > 0 Gew.% bis ≤ 1,30 Gew.%, vorzugsweise ≥ 2,5x10-6 Gew.% bis ≤ 1,20 Gew.%, bevorzugter ≥ 1,25x10-5 Gew.% bis ≤ 1,16 Gew.% und noch bevorzugter ≥ 2,5x10-5 Gew.% bis ≤ 1,10 Gew.% von mindestens einem Sequestrierungsmittel von einem Phosphonat
und/oder einer Phosphonsäure, bevorzugter einer Säure oder einem Salz von 2-Phosphonobutan-1,2,4-tricarbonsäure;
- > 0 Gew.% bis ≤ 0,54 Gew.%, vorzugsweise ≥ 2,5x10-6 Gew.% bis ≤ 0,46 Gew.%, bevorzugter ≥ 1,25x10-5 Gew.% bis ≤ 0,36 Gew.% und noch bevorzugter ≥ 2,5x10-5 Gew.% bis ≤ 0,27 Gew.% von mindestens einem flüssigen Konditionierungspolymer von
Monomeren von wasserlöslichen monoethylenisch ungesättigten C3-C8-Carboxylaten und/oder ungesättigten C3-C8-Carbonsäuren, vorzugsweise einer Säure oder einem Salz eines Acrylpolymers;
- ≥ 0 Gew.% bis ≤ 4,99 Gew.%, vorzugsweise ≥ 0,05 Gew.% bis ≤ 47,5 Gew.%, bevorzugter
≥ 0,075 Gew.% bis ≤ 4,50 Gew.% und noch bevorzugter ≥ 0,10 Gew.% bis ≤ 4,25 Gew.%
von mindestens einer Alkalinitätsquelle, vorzugsweise Natriumhydroxid;
- ≥ 0 Gew.% bis ≤ 0,48 Gew.%, vorzugsweise ≥ 5x10-6 Gew.% bis ≤ 0,36 Gew.%, bevorzugter ≥ 5x10-5 Gew.% bis ≤ 0,34 Gew.% und noch bevorzugter ≥ 2,5x10-4 Gew.% bis ≤ 0,32 Gew.% von mindestens einem Korrosionsinhibitor, vorzugsweise einem
Disilikat;
- ≥ 0 Gew.% bis ≤ 0,4 Gew.%, vorzugsweise ≥ 5x10-6 Gew.% bis ≤ 0,36 Gew.%, bevorzugter ≥ 5x10-5 Gew.% bis ≤ 0,34 Gew.% und noch bevorzugter ≥ 2,5x10-4 Gew.% bis ≤ 0,32 Gew.% von mindestens einem Salz, vorzugsweise Kaliumiodid; und wobei
das Lösungsmittel bis auf 100 Gew.% zugegeben wird, wobei sich die Gew.% der Komponenten
auf das Gesamtgewicht der Zusammensetzung beziehen.
15. Verwendung der Zusammensetzung nach den Ansprüchen 1 bis 14 zur Reinigung harter Oberflächen
und weicher Oberflächen.
1. Composition pour le nettoyage, comprenant :
a) deux agents chélateurs aminopolycarboxylate biodégradables, hydrosolubles, de l'acide
glutamique-N,N-diacétique et l'acide méthylglycinediacétique ;
b) un gluconate ;
c) au moins un agent séquestrant qui est un phosphonate ;
d) au moins un polymère conditionneur liquide de monomères de carboxylates en C3-C8 à insaturation monoéthylénique hydrosolubles et/ou d'acides carboxyliques en C3-C8 à insaturation monoéthylénique hydrosolubles ;
e) au moins un solvant ; dans laquelle le rapport pondéral du gluconate et/ou de l'acide
gluconique à l'acide glutamique-N,N-diacétique et l'acide méthylglycinediacétique
et/ou à un sel d'un tel acide est dans la plage de 1 : 1 à 1 : 5.
2. Composition selon la revendication 1, comprenant de l'acide glutamique-N,N-diacétique
et de l'acide méthylglycinediacétique, dans laquelle le rapport pondéral du gluconate
et/ou de l'acide gluconique au premier sel et/ou acide hydrosoluble d'acide glutamique-N,N-diacétique
est dans la plage de 1 : 0,1 à 1 : 4 ;
et le rapport pondéral du gluconate et/ou de l'acide gluconique au second sel et/ou
acide d'acide méthylglycine-diacétique est dans la plage de 1 : 0,1 à 1 : 4 ; et de
façon tout particulièrement préférée les premier et second agents chélateurs hydrosolubles
de type aminopolycarboxylate et/ou acide amino-polycarboxylique d'acide glutamique-N,N-diacétique
et d'acide méthylglycinediacétique sont en un rapport pondéral dans la plage de 1
: 0,2 à 1 : 2.
3. Composition selon la revendication 1 ou 2, dans laquelle l'agent séquestrant phosphonate
est choisi dans le groupe comprenant un acide et/ou un sel d'acide phosphonique, d'acide
phosphonocarboxylique, d'acide 1-hydroxy-éthylidène-1,1-diphosphonique (HEDP), d'acide
2-phosphonobutane-1,2,4-tricarboxylique et de mélanges de ceux-ci, de façon plus particulièrement
préférée le sel est un sel de sodium.
4. Composition selon les revendications 1 à 3, dans laquelle le conditionneur liquide
est choisi dans le groupe constitué par des sels de et/ou des polymères substitués
acides de monomères d'acide carboxylique en C3-C8 à insaturation monoéthylénique, de préférence d'un acide monocarboxylique en C3-C4, l'acide acrylique, l'acide méthacrylique, le poly(acide itaconique), le poly(acide
maléique), et des mélanges de ceux-ci, de façon tout particulièrement préférée est
un poly(acide acrylique) ou polyacrylate.
5. Composition selon les revendications 1 à 4, dans laquelle le solvant est choisi dans
le groupe comprenant l'eau, des alcools, des glycols, des éthers de glycols, des esters,
de préférence l'éthanol, le méthanol, le propanol, le propan-2-ol, le 2-butoxy-éthanol,
le 1-décanol, l'alcool benzylique, le glycérol, la monoéthanolamine et des mélanges
de ceux-ci, de façon tout particulièrement préférée est l'eau.
6. Composition selon les revendications 1 à 5, la composition comprenant au moins une
source d'alcalinité choisie dans le groupe constitué par des hydroxydes de métaux
alcalins, des sels de métaux alcalins, des phosphates, des amines et des mélanges
de ceux-ci, de préférence des hydroxydes de métaux alcalins incluant l'hydroxyde de
sodium, l'hydroxyde de potassium et l'hydroxyde de lithium, et des mélanges de ceux-ci
; et de façon tout particulièrement préférée qui est l'hydroxyde de sodium.
7. Composition selon les revendications 1 à 6, la composition comprenant au moins un
agent anticorrosion choisi dans le groupe comprenant un silicate, le silicate de sodium,
l'acétate de calcium, le chlorure de calcium, le gluconate de calcium, le phosphate
de calcium, le borate de calcium, le carbonate de calcium, le citrate de calcium,
le lactate de calcium, le sulfate de calcium, le tartrate de calcium, le benzotriazole,
le 1,2,3-benzotriazole et des mélanges de ceux-ci.
8. Composition selon les revendications 1 à 7, la composition comprenant au moins un
tensioactif choisi dans le groupe constitué par un tensioactif non ionique, un tensioactif
cationique, un tensioactif anionique, un tensioactif amphotère et des mélanges de
ceux-ci.
9. Composition selon les revendications 1 à 8, la composition comprenant au moins un
sel choisi dans le groupe constitué par le chlorure de lithium, l'iodure de lithium,
le chlorure de sodium, l'iodure de sodium, l'iodure de potassium, le chlorure de potassium,
l'iodure de potassium, le sulfate de sodium, l'acétate de sodium, l'acétate de potassium,
le nitrate de sodium, le phosphate de sodium et des mélanges de ceux-ci.
10. Composition selon les revendications 1 à 9, dans laquelle
- la composition pour le nettoyage a un pH dans l'intervalle de pH ≥ 1 à pH ≤ 14,
de préférence dans l'intervalle de pH ≥ 1,5 à pH ≤ 13,8, de façon plus particulièrement
préférée dans l'intervalle de pH ≥ 2 à pH ≤ 13,5, de façon également préférée dans
l'intervalle de pH ≥ 2,5 à pH ≤ 13,0, et de façon encore plus particulièrement préférée
dans l'intervalle de pH ≥ 3 à pH ≤ 12,9 ;
- la composition de base pour le nettoyage a un pH dans l'intervalle de pH ≥ 1 à pH
≤ 14, de préférence dans l'intervalle de pH ≥ 2 à pH ≤ 13,8, de façon plus particulièrement
préférée dans l'intervalle de pH ≥ 2,5 à pH ≤ 13,5, de façon également préférée dans
l'intervalle de pH ≥ 2,8 à pH ≥ 12,5 et de façon encore plus particulièrement préférée
dans l'intervalle de pH ≥ 2,9 à pH ≤ 12 ;
- la solution concentrée a un pH dans l'intervalle de pH ≥ 5 à pH ≤ 14, de préférence
dans l'intervalle de pH ≥ 5,5 à pH ≤ 13,8, de façon plus particulièrement préférée
dans l'intervalle de pH ≥ 7 à pH ≤ 13,6 et de façon également préférée dans l'intervalle
de pH ≥ 9 à pH ≤ 113,5 ; et
- la solution prête à l'emploi a un pH dans l'intervalle de pH ≥ 7 à pH ≤ 14, de préférence
dans l'intervalle de pH ≥ 8 à pH ≤ 13,8, de façon plus particulièrement préférée dans
l'intervalle de pH ≥ 9 à pH ≤ 13,6, de façon encore plus particulièrement préférée
dans l'intervalle de pH ≥ 10 à pH ≤ 13,5 et de façon également préférée dans l'intervalle
de pH ≥ 10,5 à pH ≤ 13,4.
11. Composition selon les revendications 1 à 10, la composition comprenant :
- > 0 % en poids à ≤ 26 % en poids, de préférence ≥ 0,04 % en poids à ≤ 24 % en poids,
de façon particulièrement préférée ≥ 0,4 % en poids à ≤ 22 % en poids, et de façon
plus particulièrement préférée ≥ 0,6 % en poids à ≤ 20 % en poids de deux agents chélateurs
aminopolycarboxylate et/ou acide aminopolycarboxylique hydrosolubles de l'acide glutamique-N,N-diacétique
et l'acide méthylglycine-diacétique ;
- > 0 % en poids à ≤ 20 % en poids, de préférence ≥ 0,25 % en poids à ≤ 19 % en poids,
de façon particulièrement préférée ≥ 0,5 % en poids à ≤ 17,5 % en poids, et de façon
plus particulièrement préférée ≥ 0,75 % en poids à ≤ 15 % en poids d'au moins un gluconate
et/ou acide gluconique ;
- > 0 % en poids à ≤ 32,5 % en poids, de préférence ≥ 0,05 % en poids à ≤ 30 % en
poids, de façon particulièrement préférée ≥ 0,25 % en poids à ≤ 29 % en poids, et
de façon plus particulièrement préférée ≥ 0,5 % en poids à ≤ 27,5 % en poids d'au
moins un agent séquestrant phosphonate ;
- > 0 % en poids à ≤ 13,5 % en poids, de préférence ≥ 0,045 % en poids à ≤ 11,25 %
en poids, de façon particulièrement préférée ≥ 0,225 % en poids à ≤ 9 % en poids,
et de façon plus particulièrement préférée ≥ 0,45 % en poids à ≤ 15 % en poids d'au
moins un polymère conditionneur liquide de monomères de carboxylates en C3-C8 à insaturation monoéthylénique hydrosolubles et/ou d'acide carboxylique en C3-C8 à insaturation monoéthylénique hydrosoluble ;
- ≥ 0 % en poids à ≤ 20 % en poids, de préférence ≥ 1 % en poids à ≤ 18 % en poids,
de façon particulièrement préférée ≥ 1,5 % en poids à ≤ 15 % en poids, et de façon
plus particulièrement préférée ≥ 2 % en poids à ≤ 12 % en poids d'au moins une source
d'alcalinité ;
- ≥ 0 % en poids à ≤ 12 % en poids, de préférence ≥ 0,01 % en poids à ≤ 10 % en poids,
de façon particulièrement préférée ≥ 0,025 % en poids à ≤ 9 % en poids, et de façon
plus particulièrement préférée ≥ 0,03 % en poids à ≤ 8 % en poids d'au moins un agent
anticorrosion ;
- ≥ 0 % en poids à ≤ 10 % en poids, de préférence ≥ 0,01 % en poids à ≤ 9 % en poids,
de façon particulièrement préférée ≥ 0,1 % en poids à ≤ 8,5 % en poids, et de façon
plus particulièrement préférée ≥ 0,5 % en poids à ≤ 8 % en poids d'au moins un sel
; et
le solvant est ajouté en complément à 100 % en poids ; les % en poids des composants
étant basés sur le poids total de la composition.
12. Composition de base selon les revendications 1 à 11, dans laquelle la solution de
la composition de base comprend :
- > 0 % en poids à ≤ 26 % en poids, de préférence ≥ 0,04 % en poids à ≤ 24 % en poids,
de façon particulièrement préférée ≥ 0,4 % en poids à ≤ 22 % en poids, et de façon
plus particulièrement préférée ≥ 0,6 % en poids à ≤ 20 % en poids d'au moins un sel
ou acide hydrosoluble de méthylglycine-N,N-diacétate et acide glutamique-N,N-diacétate
;
- > 0 % en poids à ≤ 20 % en poids, de préférence ≥ 0,25 % en poids à ≤ 19 % en poids,
de façon particulièrement préférée ≥ 0,5 % en poids à ≤ 17,5 % en poids, et de façon
plus particulièrement préférée ≥ 0,75 % en poids à ≤ 15 % en poids d'un acide ou sel
d'acide gluconique ;
- > 0 % en poids à ≤ 32,5 % en poids, de préférence ≥ 0,05 % en poids à ≤ 30 % en
poids, de façon particulièrement préférée ≥ 0,25 % en poids à ≤ 29 % en poids, et
de façon plus particulièrement préférée ≥ 0,5 % en poids à ≤ 27,5 % en poids d'au
moins un agent séquestrant phosphonate et/ou acide phosphonique, de façon particulièrement
préférée un acide ou sel d'acide 2-phosphonobutane-1,2,4-tricarboxylique ;
- > 0 % en poids à ≤ 13,5 % en poids, de préférence ≥ 0,045 % en poids à ≤ 11,25 %
en poids, de façon particulièrement préférée ≥ 0,225 % en poids à ≤ 9 % en poids,
et de façon plus particulièrement préférée ≥ 0,45 % en poids à ≤ 15 % en poids d'au
moins un polymère conditionneur liquide de monomères de carboxylates en C3-C8 à insaturation monoéthylénique hydrosolubles et/ou d'acides carboxyliques en C3-C8 à insaturation monoéthylénique hydrosolubles, de préférence d'un sel ou d'un acide
d'un polymère acrylique ;
- ≥ 0 % en poids à ≤ 20 % en poids, de préférence ≥ 1 % en poids à ≤ 18 % en poids,
de façon particulièrement préférée ≥ 1,5 % en poids à ≤ 15 % en poids, et de façon
plus particulièrement préférée ≥ 2 % en poids à ≤ 12 % en poids d'au moins une source
d'alcalinité ; et
un solvant est ajouté en complément à 100 % en poids ; les % en poids des composants
étant basés sur le poids total de la composition de base.
13. Composition selon les revendications 1 à 12, la solution de la composition concentrée
comprenant :
- > 0 % en poids à ≤ 10 % en poids, de préférence ≥ 2x10-4 % en poids à ≤ 9,60 % en poids, de façon particulièrement préférée ≥ 2x10-3 % en poids à ≤ 8,80 % en poids, et de façon plus particulièrement préférée ≥ 3x10-3 % en poids à ≤ 8,00 % en poids de deux agents chélateurs aminopolycarboxylate et/ou
acide aminopolycarboxylique hydrosolubles de méthylglycine-N,N-diacétate et acide
glutamique-N,N-diacétate ;
- > 0 % en poids à ≤ 8,0 % en poids, de préférence ≥ 1,3x10-3 % en poids à ≤ 7,6 % en poids, de façon particulièrement préférée ≥ 2,5x10-3 % en poids à ≤ 7,0 % en poids, et de façon plus particulièrement préférée ≥ 0,037
% en poids à ≤ 6,0 % en poids d'un acide ou sel d'acide gluconique ;
- > 0 % en poids à ≤ 13,0 % en poids, de préférence ≥ 2,5x10-4 % en poids à ≤ 12,0 % en poids, de façon particulièrement préférée ≥ 1,25x10-3 % en poids à ≤ 11,6 % en poids, et de façon plus particulièrement préférée ≥ 2,5x10-3 % en poids à ≤ 11,0 % en poids d'au moins un agent séquestrant phosphonate et/ou
acide phosphonique, de façon plus particulièrement préférée un acide ou sel d'acide
2-phosphonobutane-1,2,4-tricarboxylique ;
- > 0 % en poids à ≤ 5,4 % en poids, de préférence ≥ 2,5x10-4 % en poids à ≤ 4,5 % en poids, de façon particulièrement préférée ≥ 1,125x10-3 % en poids à ≤ 3,6 % en poids, et de façon plus particulièrement préférée ≥ 2,5x10-3 % en poids à ≤ 2,7 % en poids d'au moins un polymère conditionneur liquide de monomères
de carboxylates en C3-C8 à insaturation monoéthylénique hydrosolubles et/ou d'acides carboxyliques en C3-C8 à insaturation monoéthylénique hydrosolubles, de préférence d'un sel ou d'un acide
d'un polymère acrylique ;
- ≥ 0 % en poids à ≤ 49,5 % en poids, de préférence ≥ 0,5 % en poids à ≤ 47,5 % en
poids, de façon particulièrement préférée ≥ 0,75 % en poids à ≤ 45 % en poids, et
de façon plus particulièrement préférée ≥ 1 % en poids à ≤ 42,5 % en poids d'au moins
une source d'alcalinité, de préférence d'hydroxyde de sodium ;
- ≥ 0 % en poids à ≤ 4,8 % en poids, de préférence ≥ 5x10-5 % en poids à ≤ 3,6 % en poids, de façon particulièrement préférée ≥ 1,25x10-4 % en poids à ≤ 3,4 % en poids, et de façon plus particulièrement préférée ≥ 1,5x10-4 % en poids à ≤ 3,2 % en poids d'au moins un agent anticorrosion, de préférence d'un
disilicate ;
- ≥ 0 % en poids à ≤ 4,0 % en poids, de préférence 5x10-5 % en poids à ≤ 3,6 % en poids, de façon particulièrement préférée ≥ 5x10-4 % en poids à ≤ 3,4 % en poids, et de façon plus particulièrement préférée ≥ 2,5x10-3 % en poids à ≤ 3,2 % en poids d'au moins un sel, de préférence d'iodure de potassium
; et
le solvant est ajouté en complément à 100 % en poids ; les % en poids des composants
étant basés sur le poids total de la composition.
14. Composition selon les revendications 1 à 13, la solution de composition prête à l'emploi
comprenant :
- > 0 % en poids à ≤ 1,04 % en poids, de préférence ≥ 2x10-6 % en poids à ≤ 0,96 % en poids, de façon particulièrement préférée ≥ 2x10-5 % en poids à ≤ 0,88 % en poids, et de façon plus particulièrement préférée ≥ 3x10-5 % en poids à ≤ 0,80 % en poids de deux agents chélateurs aminopolycarboxylate et/ou
acide aminopolycarboxylique hydrosolubles de méthylglycine-N,N-diacétate et acide
glutamique-N,N-diacétate ;
- > 0 % en poids à ≤ 0,80 % en poids, de préférence ≥ 1,25x10-5 % en poids à ≤ 0,76 % en poids, de façon particulièrement préférée ≥ 2,5x10-5 % en poids à ≤ 0,70 % en poids, et de façon plus particulièrement préférée ≥ 3,75x10-5 % en poids à ≤ 0,60 % en poids d'un acide ou sel d'acide gluconique ;
- > 0 % en poids à ≤ 1,30 % en poids, de préférence ≥ 2,5x10-6 % en poids à ≤ 1,20 % en poids, de façon particulièrement préférée ≥ 1,25x10-5 % en poids à ≤ 1,16 % en poids, et de façon plus particulièrement préférée ≥ 2,5x10-5 % en poids à ≤ 1,10 % en poids d'au moins un agent séquestrant phosphonate et/ou
acide phosphonique, de façon plus particulièrement préférée d'un acide ou sel d'acide
2-phosphonobutane-1,2,4-tricarboxylique ;
- > 0 % en poids à ≤ 0,54 % en poids, de préférence ≥ 2,5x10-6 % en poids à ≤ 0,46 % en poids, de façon particulièrement préférée ≥ 1,25x10-5 % en poids à ≤ 0,36 % en poids, et de façon plus particulièrement préférée ≥ 2,5x10-5 % en poids à ≤ 0,27 % en poids d'au moins un polymère conditionneur liquide de monomères
de carboxylates en C3-C8 à insaturation monoéthylénique hydrosolubles et/ou d'acides carboxyliques en C3-C8 à insaturation monoéthylénique hydrosolubles, de préférence d'un sel ou d'un acide
d'un polymère acrylique ;
- ≥ 0 % en poids à ≤ 4,99 % en poids, de préférence ≥ 0,05 % en poids à ≤ 47,5 % en
poids, de façon particulièrement préférée ≥ 0,075 % en poids à ≤ 4,50 % en poids,
et de façon plus particulièrement préférée ≥ 0,10 % en poids à ≤ 4,25 % en poids d'au
moins une source d'alcalinité, de préférence d'hydroxyde de sodium ;
- ≥ 0 % en poids à ≤ 0,48 % en poids, de préférence ≥ 5x10-6 % en poids à ≤ 0,36 % en poids, de façon particulièrement préférée ≥ 5x10-5 % en poids à ≤ 0,34 % en poids, et de façon plus particulièrement préférée ≥ 2,5x10-4 % en poids à ≤ 0,32 % en poids d'au moins un agent anticorrosion, de préférence d'un
disilicate ;
- ≥ 0 % en poids à ≤ 0,4 % en poids, de préférence ≥ 5x10-6 % en poids à ≤ 0,36 % en poids, de façon particulièrement préférée ≥ 5x10-5 % en poids à ≤ 0,34 % en poids, et de façon plus particulièrement préférée ≥ 2,5x10-4 % en poids à ≤ 0,32 % en poids d'au moins un sel, de préférence d'iodure de potassium
; et
le solvant est ajouté en complément à 100 % en poids ; les % en poids des composants
étant basés sur le poids total de la composition.
15. Utilisation de la composition selon les revendications 1 à 14, pour le nettoyage de
surfaces dures et de surfaces molles.