Global Patent Index - EP 0636691 A2

EP 0636691 A2 19950201 - Bleach compositions.

Title (en)

Bleach compositions.

Title (de)

Bleichmittelzusammensetzungen.

Title (fr)

Compositions de blanchiment.

Publication

EP 0636691 A2 19950201 (EN)

Application

EP 94305449 A 19940722

Priority

GB 9315760 A 19930730

Abstract (en)

A bleach composition comprises an active halogen or a peroxy bleach material, preferably hypochlorite; surfactant; 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 100,000 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

C11D 3/395; C11D 3/37

IPC 8 full level

C11D 3/37 (2006.01); C11D 3/39 (2006.01); C11D 3/395 (2006.01)

CPC (source: EP)

C11D 3/3765 (2013.01); C11D 3/3947 (2013.01); C11D 3/3956 (2013.01)

Designated contracting state (EPC)

BE DE FR GB IT NL

DOCDB simple family (publication)

EP 0636691 A2 19950201; EP 0636691 A3 19960501; GB 9315760 D0 19930915

DOCDB simple family (application)

EP 94305449 A 19940722; GB 9315760 A 19930730