Global Patent Index - EP 1080175 A1

EP 1080175 A1 2001-03-07 - AQUEOUS BLEACHING AGENT

Title (en)

AQUEOUS BLEACHING AGENT

Title (de)

WÄSSRIGES BLEICHMITTEL

Title (fr)

AGENT DE BLANCHIMENT AQUEUX

Publication

EP 1080175 A1 (DE)

Application

EP 99924912 A

Priority

  • DE 19822391 A
  • EP 9903171 W

Abstract (en)

[origin: DE19822391A1] An H2O2-containing liquid, aqueous bleach or washing pretreatment agent is claimed which not only avoids the wastage of H2O2 and the adverse high oxidative effects of peroxides on soiled textiles when pretreating or pre-spotting prior to washing but which can also have a higher viscosity on account of using a special thickener system.- DETAILED DESCRIPTION - A liquid aqueous bleach or washing pretreatment agent, preferably of pH 2-4 and of viscosity 200-5,000 (especially 600-1,500) mPa.s, comprises (by wt.): - (i) 0.2-25 (especially 2-10)% H2O2; - (ii) up to 5 (especially 0.05-1)% complex-former for heavy metals; - (iii) up to 15 (especially 0.1-0.6)% surfactant; - (iv) up to 0.1 (especially 0.01-0.1)% radical scavenger; and - (v) 55-90% water; and - (vi) a thickener system comprising: - (a) 0.1-3% electrolyte; and - (b) 0.01-1% hydrophobically-modified polyurethane, - such that the wt. ratio (a) : (b) in (B) is at least 5 when the amount of (b) is up to 0.1%

IPC 1-7 (main, further and additional classification)

C11D 3/39; C11D 3/37

IPC 8 full level (invention and additional information)

C11D 3/37 (2006.01); C11D 3/39 (2006.01); C11D 17/08 (2006.01); D06L 3/02 (2006.01); C11D 1/29 (2006.01)

CPC (invention and additional information)

C11D 3/3726 (2013.01); C11D 3/3947 (2013.01); D06L 4/10 (2017.01); C11D 1/29 (2013.01)

Designated contracting state (EPC)

AT BE DE ES FR GB IT NL

EPO simple patent family

DE 19822391 A1 19991125; EP 1080175 A1 20010307; JP 2002515538 A 20020528; WO 9960087 A1 19991125

INPADOC legal status


2002-04-03 [18R] REFUSED

- Effective date: 20011112

2001-07-04 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010517

2001-03-07 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001110

2001-03-07 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE DE ES FR GB IT NL