Patent ID: 6342239
Filing Date: 2002-01-29
Classification: A61K,A61Q,C08F,C08G,Y10S

Abstract:
A powder dispersion in oil composition comprising powder, oil and a copolymer whereinsaid powder is dispersed in said oil, which oil contains said copolymer composed of constituent units from a monomer (A) and constituent units from a monomer (B), wherein said monomer (A) is an organopolysiloxane monomer possessing a radical polymerization group possible to polymerize with monomer (B) and is represented by the formula (I), W(X)a(Si)(Y)b(Z)câ€ƒâ€ƒ(I) wherein W represents a vinyl group which can contain a substitution group, X represents a divalent bonding group, Y represents a hydrogen atom, an alkyl group of 1 to 10 carbon atoms, an aryl group or an alkoxy group, Z represents a monovalent siloxane polymer, a is an integer of 0 to 1, b is an integer of 0 to 2, c is an integer of 1 to 3, and b+c=3, and said monomer (B) consists essentially of one more monomers selected from the group consisting of a vinyl monomer containing a nitrogen group, a vinyl monomer containing a polyoxyalkylene group, a vinyl monomer containing a polylactone group, a vinyl monomer containing an alcohol hydroxyl group and a vinyl monomer containing an anionic group.