| abstract |
(57) [Summary] (Modifications) [Problem] A novel powder treating agent having a good affinity with oils used in general cosmetics and giving excellent emulsifying ability to powder, Provided are a powder which has been surface-treated with the treating agent, and a cosmetic comprising the powder. A silicone powder treating agent represented by the following formula (1). R 1 a R 2 b R 3 c SiO (4-abc) / 2 1 -C d H 2d -O- (C 2 H 4 O) e (C 3 H 6 O) f R 42 In the formula, R 1 is a C1-30 alkyl, aryl, aralkyl or fluorine-substituted alkyl group, a group represented by the formula (2) Wherein R 4 is an alkyl group etc.) R 2 is H, hydroxy group, C1 R 3 is a group represented by formula 3, such as an alkoxy group of f, x, and y are 1.0 ≦ a ≦ 2.5, 0.001 ≦ b ≦ 1.5, 0.001 ≦ c ≦ 1.5, 0 ≦ d ≦ 15, 0 ≦ e ≦ 50, 0 ≦ f ≦ 50, 1 ≦ x ≦ 5, 0 ≦ y ≦ 50 0. |