| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hair cosmetic excellent in fixing of hair tips and in feeling, and easy to spread to hair tips, providing a natural hair appearance even after receiving hard intense damage, and keeping fixing after finger through or adjustment. <P>SOLUTION: The hair cosmetic is a water-in-oil type cosmetic containing components (A)-(C): component (A) is composed of a poly (N-acylalkyleneimine) segment (b) which is composed of a repeating unit represented by formula (1) (wherein R<SP POS="POST">1</SP>is H, 1-22C alkyl, aralkyl or aryl; and n is 2 or 3), bonded to at least two Si atoms of an organopolysiloxane segment (a) constituting the main chain through an alkylene group including a heteroatom, and has a number average molecular weight of (b) of 1,600-3,500 with a mass ratio of the organopolysiloxane segment (a) to the poly(N-acylalkyleneimine) segment (b) of 42/58 to 58/42 and a weight average molecular weight of the organopolysiloxane segment between adjacent (b)s is 1,600-3,500, and the weight average molecular weight of (a) is 7,000-100,000; component (B) is an oil aent; and component (C) is a surfactant. <P>COPYRIGHT: (C)2012,JPO&INPIT |
