C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 3/42 (2006.01) C11D 1/825 (2006.01) C11D 1/83 (2006.01) C11D 17/08 (2006.01) D06L 3/12 (2006.01) C11D 1/14 (2006.01) C11D 1/72 (2006.01)
Patent
CA 2191569
Aqueous compositions are disclosed which comprise a hydrophobic brightener, i.e. a brightener whose solubility in water is lower that 5 grams per liter at 25 ~C, emulsified by a surfactant system comprising at least a hydrophobic surfactant having an HLB up to 9 and a hydrophobic surfactant having an HLB above 10. Preferred emulsions further comprise a bleach and a bleach activator. The compositions herein allow to obtain excellent synthetic fabric whiteness performance.
L'invention concerne des compositions acqueuses comprenant un agent de blanchiment hydrophobe, c'est-à-dire un agent de blanchiment dont la solubilité dans l'eau est inférieure à 5 grammes par litre à 25 ~C, émulsifié par un système tensio-actif comprenant au moins un tensio-actif hydrophobe ayant un rapport hydrophile-lipophile supérieur à 9 et un tensio-actif hydrophile ayant un rapport hydrophile-lipophile supérieur à 10. Des émulsions préférées comprenent également un agent de blanchiment et un activeur d'agent de blanchiment. Les compositions de cette invention permettent d'obtenir une excellente blancheur des tissus synthétiques.
Scialla Stefano
Scoccianti Raffaele
Dimock Stratton Llp
The Procter & Gamble Company
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