Patent ID: 7914775

Claim:
A composition for treating a keratin material comprising, in a physiologically acceptable medium, at least one agent chosen from protecting agents and conditioning agents and at least one cationic associative polyurethane of formula (I): R—X—(P) n -[L-(Y) m ] r -L′-(P′) p —X′—R′ (I) wherein: R and R′, which may be identical or different, are each chosen from; saturated and unsaturated, linear and branched C 10 -C 30 hydrocarbon-based chains; X and X′, which are identical, are chosen from groups L″ and groups of the following formulae: wherein: R 2 is chosen from linear and branched C 1 -C 20 alkylene radicals; R 1 and R 3 , which may be identical or different, are each chosen from linear and branched C 1 -C 30 alkyl radicals; and A − is chosen from physiologically acceptable counterions; L, L′ and L″, which may be identical or different, are each chosen from groups of the following formula: wherein: Z is chosen from —O—, —S— and —NH—; and R 4 is chosen from linear and branched C 1 -C 20 alkylene radicals, methylenediphenyl, methylenedicyclohexyl, isophorone, and arylene radicals chosen from toluene and naphthalene; P and P′, which may be identical or different, are each chosen from groups of the following formulae: wherein: R 5 and R 7 , which may be identical or different, are each chosen from linear and branched C 1 -C 20 alkylene radicals; R 6 , R 8 and R 9 , which may be identical or different, are each chosen from linear and branched C 1 -C 30 alkyl radicals; R 10 is chosen from linear and branched, optionally unsaturated alkylene groups, and A − is chosen from physiologically acceptable counterions; Y is chosen from groups derived from ethylene glycol, diethylene glycol, and propylene glycol, and groups derived from a polymer chosen from polyethers chosen from poly(ethylene oxide) and poly(propylene oxide); r is an integer ranging from 1 to 100; n, m and p, which may be identical or different, each range from 0 to 1000; with the exclusion of the following compositions: (1) compositions for direct dyeing of keratin fibers, comprising, in a medium suitable for dyeing, at least one direct dye and at least one cationic associative polyurethane of formula (I), (2) compositions for oxidation dyeing of keratin fibers, comprising, in a medium suitable for dyeing, at least one oxidation dye and at least one cationic associative polyurethane of formula (I), (3) ready-to-use compositions for bleaching keratin fibers, comprising, in a medium suitable for bleaching, at least one oxidizing agent and at least one cationic associative polyurethane of formula (I), and (4) ready-to-use compositions for bleaching or permanently reshaping keratin fibers, comprising, in a medium suitable for bleaching, at least one reducing agent and at least one cationic associative polyurethane of formula (I).