Patent ID: 9408800
Filing Date: 2016-08-09
CPC Classification: A61K,A61Q

Claim Text:
1. A cosmetic composition, comprising components (A), (B), (C), and (D): (A) from 0.01 to 50% by mass of a fluorine-modified silicone having a polysiloxane unit represented by formulae (1) and (2): wherein, Rf represents a linear or branched perfluoroalkyl group having 6 carbon atoms; R m represents a number of from 2 to 6; n represents a number of from 1 to 6; p represents a number of from 3 to 50; s represents a number of from 1 to 5; and a ratio between p and s satisfies 0.66≦p/(p+s)≦0.9, (B) from 0.01 to 40% by mass of a powder having been subjected to a surface treatment with tridecafluoro octyltriethoxysilane, (C) from 0.01 to 20% by mass of fine zinc oxide particles having a specific surface area of from 10 to 100 m (D) from 0.01 to 10% by mass of an organopolysiloxane in which poly(N-acylalkyleneimine) segments are bound to at least two silicon atoms of an organopolysiloxane segment constituting a main chain via alkylene groups each having a hetero atom, the poly(N-acylalkyleneimine) segments comprising a repeating unit represented by formula (4): wherein, R wherein, a number average molecular weight of the poly(N-acylalkyleneimine) segment is from 500 to 4000, a mass ratio of (a) the organopolysiloxane segment constituting the main chain to (b) the poly(N-acylalkyleneimine) segment, (a/b), is from 80/20 to 95/5, a weight average molecular weight of the organopolysiloxane segment between adjacent poly(N-acylalkyleneimine) segments is from 10000 to 40000, and a weight average molecular weight of the organopolysiloxane segment constituting the main chain is from 50000 to 150000, and wherein, a mass ratio of the component (A) to the component (D), (A)/(D), is from 2 to 40.