EP 0636689 A3 19960501 - Bleach compositions.
Title (en)
Bleach compositions.
Title (de)
Bleichmittelzusammensetzungen.
Title (fr)
Compositions de blanchiment.
Publication
Application
Priority
GB 9315761 A 19930730
Abstract (en)
[origin: EP0636689A2] 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 (search report)
- [Y] WO 9116409 A1 19911031 - UNILEVER PLC [GB], et al
- [DY] EP 0256638 A1 19880224 - CLOROX CO [US]
- [A] GB 1360909 A 19740724 - JOHNSON & SON INC S C
- [A] WO 9112307 A2 19910822 - UNILEVER PLC [GB], et al
- [PA] EP 0574086 A2 19931215 - COLGATE PALMOLIVE CO [US]
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