Title (en)

THICKENED BLEACH COMPOSITIONS AND METHOD FOR PREPARING THE SAME

Publication

EP 0298172 B1 19920617 (EN)

Application

EP 87306130 A 19870710

Priority

• EP 87306130 A 19870710
• CA 541326 A 19870706

Abstract (en)

[origin: EP0298172A1] Bleach compositions, such as aqueous sodium hypochlorite formulations, are thickened by admixing the composition with a viscoelastic surfactant. Viscoelastic surfactants comprise surfactant ions and organic counterions that associate in the bleach composition to form the viscoelastic surfactant. Thickened bleach compositions of this invention exhibit bleach stability, phase stability, and viscosity stability for acceptably long periods of time. The thickened bleach compositions can be employed as nonmisting sprays and streams which will stick to vertical surfaces without substantial dripping and can be applied to various substrates using a dispensing device.

IPC 1-7

C11D 3/395; C11D 17/00

IPC 8 full level

C11D 3/39 (2006.01); C11D 3/395 (2006.01); C11D 17/00 (2006.01)

CPC (source: EP)

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

Citation (examination)

• EP 0030401 A1 19810617 - UNILEVER NV [NL], et al
• DE 3118527 A1 19820527 - SANDOZ AG [DE]
• EP 0092581 A1 19831102 - DOW CHEMICAL CO [US]
• C.A. Barker et al., Phase Structure, Nuclear Magnetic Resonance and Theological Properties of Viscoelastic Sodium Dodecyl Sulphate and Trimethylammonium Bromide Mixtures, J. Chem. Soc. Faraday Transaction I 70 (1970), pp. 154-162

Designated contracting state (EPC)

AT BE CH DE ES FR GB IT LI NL SE

DOCDB simple family (publication)

EP 0298172 A1 19890111; EP 0298172 B1 19920617; AT E77404 T1 19920715; CA 1337783 C 19951226; DE 3779913 D1 19920723; DE 3779913 T2 19921210; ES 2032446 T3 19930216

DOCDB simple family (application)

EP 87306130 A 19870710; AT 87306130 T 19870710; CA 541326 A 19870706; DE 3779913 T 19870710; ES 87306130 T 19870710