EP 1012221 A1 20000628 - METHOD FOR PRODUCING PARTICULATE DETERGENTS
Title (en)
METHOD FOR PRODUCING PARTICULATE DETERGENTS
Title (de)
VERFAHREN ZUR HERSTELLUNG TEILCHENFÖRMIGER WASCH- ODER REINIGUNGSMITTEL
Title (fr)
PROCEDE POUR LA PRODUCTION DE DETERGENTS PARTICULAIRES
Publication
Application
Priority
- EP 97913181 A 19971028
- EP 9705945 W 19971028
- EP 9704975 W 19970911
Abstract (en)
[origin: WO9913046A1] The invention relates to washing and detergent particulates and to several substances or starting materials treated for the preparation of these particulates. The invention provides for the manufacturing of washing and detergent agents of the type undergoing improved disintegration when they dissolve in an aqueous bath, even when they have a reduced surface area, especially a spherical form (e.g. pearls). The invention also provides an economical production method requiring no costly drying steps. According to the invention, these washing and detergent particulates and the substances or starting materials treated for their preparation must have an apparent density greater than 600 g/l. Moreover, these washing and detergent compounds must be produced by combination of washing and detergent mixtures and/or starting materials and must be formed simultaneously or in consecutive steps. For this purpose, the method involves preparing first a pre-mixture containing the individual starting materials and/or mixtures of several substances which are solid at ambient temperature and at a pressure of 1 bar, turning then this mixture into a granule with applied compression forces, before further possible processing or treatment. This pre-mixture is essentially anhydrous and a liquid forming additive, in the form of a polymer which has inflated in an essentially non aqueous solution, is used in the forming conditions, especially at ambient temperature and at a pressure of 1 bar.
IPC 1-7
IPC 8 full level
C11D 11/00 (2006.01); C11D 17/06 (2006.01)
CPC (source: EP)
C11D 11/0082 (2013.01); C11D 17/065 (2013.01)
Citation (search report)
See references of WO 9913045A1
Designated contracting state (EPC)
AT BE DE ES FR GB IT NL
DOCDB simple family (publication)
WO 9913046 A1 19990318; AT E269399 T1 20040715; AT E317003 T1 20060215; CN 1275160 A 20001129; CN 1276006 A 20001206; DE 59711728 D1 20040722; EP 1012221 A1 20000628; EP 1012221 B1 20040616; ES 2224224 T3 20050301; JP 2001515955 A 20010925; WO 9913045 A1 19990318
DOCDB simple family (application)
EP 9805548 W 19980902; AT 97913181 T 19971028; AT 98947499 T 19980902; CN 97182399 A 19971028; CN 98810071 A 19980902; DE 59711728 T 19971028; EP 9705945 W 19971028; EP 97913181 A 19971028; ES 97913181 T 19971028; JP 2000510835 A 19971028