Patent ID: 8236911

Claim:
A hair cosmetic material comprising: a water-soluble resin having a structure corresponding to a copolymer of a monomer mixture comprising a vinylic monomer (A) having a hydroxyl group and an amide bond, and a vinylic monomer (B) having a cationic group, wherein the vinylic monomer (B) is represented by a formula, CH 2 ═C(R 3 )—CO(O) b —(NH) 1-b —(CH 2 ) c —N + R 4 R 5 R 6 .X − , where R 3 represents a hydrogen atom or a methyl group, R 4 and R 5 each independently represent an alkyl group having 1 to 24 carbon atoms, an aryl group having 6 to 24 carbon atoms, or an aralkyl group having 7 to 24 carbon atoms, R 6 represents a hydrogen atom, an alkyl group having 1 to 24 carbon atoms, an aryl group having 6 to 24 carbon atoms, or an aralkyl group having 7 to 24 carbon atoms, or CH 2 —CH(OH)—CH 2 —N + R 7 R 8 R 9 . Y − , R 7 to R 9 each independently represent an alkyl group having 1 to 24 carbon atoms, an aryl group having 6 to 24 carbon atoms, or an aralkyl group having 7 to 24 carbon atoms, X − and Y − each independently represent an anion, b represents 0 or 1, and c represents an integer from 1 to 10, wherein the water-soluble resin is in a hair cosmetic composition.