Patent ID: 6025431
Filing Date: 2000-02-15
Classification: A61K,A61Q,C08F,C11D

Abstract:
A personal care composition comprising a polymeric rheology modifier and a cosmetically-active agent, wherein said polymeric rheology modifier is compatible with cationically charged ingredients of personal care compositions and is prepared by polymerization of monomers consisting of5 to 80 weight percent of an acrylate monomer (a) selected from the group consisting of a C.sub.1 -C.sub.6 alkyl ester of acrylic acid and a C.sub.1 -C.sub.6 alkyl ester of methacrylic acid;5 to 80 weight percent of a monomer (b) selected from the group consisting of a vinyl-substituted heterocyclic compound containing at least one of a nitrogen or sulfur atom, (meth)acrylamide, a mono- or di-(C.sub.1 -C.sub.4)alkylamino (C.sub.1 -C.sub.4)alkyl (meth)acrylate, and a mono or di-(C.sub.1 -C.sub.4)alkylamino (C.sub.1 -C.sub.4)alkyl (meth)acrylamide;0.1 to 30 weight percent of an associative monomer (c) which is selected from the group consisting of urethane reaction products of a monoethylenically unsaturated isocyanate and non-ionic surfactants comprising C.sub.1 -C.sub.4 alkoxy-terminated, block copolymers of 1,2-butylene oxide and 1,2-ethylene oxide, an ethylenically unsaturated copolymerizable surfactant monomer obtained by condensing a nonionic surfactant with an .alpha.,.beta.-ethylenically unsaturated carboxylic acid or the anhydride thereof, a surfactant monomer selected from the group consisting of urea reaction product of a monoethylenically unsaturated monoisocyanate with a nonionic surfactant having amine functionality, an allyl ether of the formula CH.sub.2 .dbd.CR'CH.sub.2 OA.sub.m B.sub.n A.sub.p R where R' is hydrogen or methyl, A ispropyleneoxy or butyleneoxy, B is ethyleneoxy, n is zero or an integer, m and p are zero or an integer less than n, and R is a hydrophobic group of at least 8 carbon atoms, and a nonionic urethane monomer which is the urethane reaction product of a monohydric nonionic surfactant with a monoethylenically unsaturated isocyanate, wherein the percentage of monomers is based on 100 weight percent; anda cosmetically-active agent in an amount effective to impart cosmetic properties to the personal care composition.