Patent ID: 7364594

Claim:
A composition for dyeing keratin fibers, comprising, in a medium suitable for dyeing, at least one dye, at least one associative polymer chosen from cationic, amphoteric, non-ionic, and anionic associative polymers, wherein the anionic associative polymers are chosen from: (I) anionic associative polymers having at least one hydrophilic unit and at least one fatty-chain allyl ether unit; (II) anionic associative polymers having at least one hydrophilic unit of unsaturated olefinic carboxylic acid type, and at least one hydrophobic unit of (C 10 -C 30 )alkyl ester of unsaturated carboxylic acid type chosen from acrylic acid, methacrylic acid, and ethacrylic acid; (III) maleic anhydride/α-olefin and C 30 -C 38 /alkyl maleate terpolymers; (IV) acrylic terpolymers comprising; (a) about 20% to 70% by weight of an α-β-monoethlyene unsaturated carboxylic acid; (b) about 20% to 80% by weight of a non-surfactant α-β-monoethlyene unsaturated monomer different from (a); and (c) about 0.5% to 60% by weight of a non-ionic monourethane that is the reaction product of a monohydric surfactant with a monoethylene unsaturated monoiscocyanate; and (V) a copolymer comprising an α-β-monoethlyene unsaturated carboxylic acid and an α-β-monoethlyene unsaturated carboxylic acid ester and an oxyalkylenated fatty alcohol, said copolymer being a methacrylic acid/ethyl acrylate/stearyl methacrylate oxyalkylenated terpolymer, and at least one polymer comprising (i) acrylamide, (ii) dialkyldiallylammonium halide, and (iii) vinylcarboxylic acid units, said polymer being an acrylamide/dimethyldiallylammonium chloride/acrylic acid terpolymer.