EP 0636689 A2 19950201 - Bleach compositions.
Title (en)
Bleach compositions.
Title (de)
Bleichmittelzusammensetzungen.
Title (fr)
Compositions de blanchiment.
Publication
Application
Priority
GB 9315761 A 19930730
Abstract (en)
A bleach composition comprises an active halogen or a peroxy bleach material, preferably hypochlorite; surfactant constituted by at least 50% w/w primary alkyl sulphate; and polymeric thickener comprising charged, hydrophilic monomer and uncharged hydrophobic monomer. The polymeric thickener preferably comprises a copolymer of methacrylic acid and styrene having proportions (wt%) of methacrylic acid and styrene ranging from 80:20 to 20:80, and preferably comprises 54 wt% methacrylic acid and 46% styrene, with a molecular weight of about 100,00 and substantially no cross-linking. The polymeric thickener acts to enhance thickening and enables use of a wider range of surfactants than hitherto possible. <IMAGE>
IPC 1-7
IPC 8 full level
C11D 1/14 (2006.01); C11D 3/37 (2006.01); C11D 3/39 (2006.01); C11D 3/395 (2006.01)
CPC (source: EP)
C11D 1/146 (2013.01); C11D 3/3765 (2013.01); C11D 3/3947 (2013.01); C11D 3/3956 (2013.01)
Citation (examination)
- EP 0373864 A2 19900620 - PROCTER & GAMBLE [US]
- US 3985668 A 19761012 - HARTMAN WILLIAM LAW
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0636689 A2 19950201; EP 0636689 A3 19960501; GB 9315761 D0 19930915
DOCDB simple family (application)
EP 94305450 A 19940722; GB 9315761 A 19930730