Patent ID: 6710082
Filing Date: 2004-03-23
Classification: A61K,A61Q,C08G,C11D

Abstract:
A process for increasing the viscosity of an aqueous surface-active composition comprising adding to the aqueous surface-active composition a viscosity increasing-effective amount of a reaction product of a hydroxycarboxylic acid selected from the group consisting of tartaric acid, malic acid, citric acid and mixtures thereof, and a fatty alcohol polyglycol ether corresponding to formula I:R1O(CH2CH2O)nHâ€ƒâ€ƒ(I) wherein R1 is an alkyl and/or alkenyl group containing from 6 to 22 carbon atoms, and n is a number from 20 to 150, and wherein the reaction product has a Brookfield viscosity of at least 2,000 mPas, as measured using a 5% by weight sample of the reaction product in water.