Patent ID: 7790191

Claim:
A cosmetic composition comprising a polysiloxane copolymer comprising a repeating unit (A) having a group represented by the following formula (2) wherein Z is an anionic group which may be neutralized by a cationic group and R 1 is a methyl or ethyl group, a repeating unit (B) represented by the following formula (3) wherein R 2 is a linear or branched alkyl group having 8 to 64 carbon atoms, Q is a group of the following formula (4), a group of the following formula (5), or a mixture thereof a polysiloxane repeating unit (D) derived from a polysiloxane having two hydroxyl groups and a number average molecular weight of from 500 to 20,000, said repeating units (A), (B), and (D) being bonded with one another via diisocyanate residue represented by the following formula (1) wherein X is a divalent hydrocarbon group selected from the group consisting of hexamethylene, diphenylmethane-4,4′-diyl, p-phenylene, dicyclohexylmethane-4,4′-diyl, 2,4-tolylene, 3,3-dimethyl-5-methyl-5-ylomethylcyclohexyl, 2,6-tolylene, 1-methylcyclohexylene, 1,5-naphthylene, 3,3′-dimethyl-4,4′-biphenylene, xylylene, hydrogenated xylylene, and 2,2,4-trimethylhexamethylene groups.