Patent ID: 7862895
Filing Date: 2011-01-04
Classification: A61K,A61Q,C01P,C09C,Y10T

Abstract:
1. Powder of which surface has been treated with a combination for surface treating powder composed of (I) organopolysiloxane or condensate thereof and (II) organopolysiloxane in a weight ratio of (I):(II) of from 95:5 to 5:95; or (I) organopolysiloxane or condensate thereof, (II) organopolysiloxane, and (III) acryl/silicone copolymer in a weight ratio of (I):[(II)+(III)] of from 95:5 to 5:95, wherein (I) organopolysiloxane is represented by the following formula (1) wherein R 1 may be the same with or different from each other and is a C 1-30 alkyl, aryl, aralkyl, fluorinated alkyl or amino-substituted alkyl group, R 2 is a C 1-6 alkyl group, a is a number of from 0.75 to 1.5, and b is a number of from 0.2 to 3, provided that a sum of a and b is greater than 0.9 and at most 4; (II) organopolysiloxane is represented by the formula (2) wherein R R R wherein R 3 is as defined above, e is a number greater than 0 and up to 1.5, x is an integer of from 1 to 5, and y is an integer of from 0 to 500; and (III) acryl/silicone copolymer having at least one hydrolyzable silyl group.