Patent ID: 9205031
Filing Date: 2015-12-08
Classification: A61K,A61Q

Abstract:
1. Composite particles comprising: 100 parts by weight of core particles selected from the group consisting of inorganic particles; inorganic pigments; particles of a polyamide, polyacrylic acid-acrylic acid ester, polyester, polyethylene, polypropylene, polystyrene, styrene-acrylic acid copolymer, divinylbenzene-styrene copolymer, polyurethane, vinyl resin, urea resin, melamine resin, benzoguanamine, polymethylbenzoguanamine, tetrafluoroethylene, polymethyl methacrylate, cellulose, silk, nylon, phenol resin, epoxy resin, and polycarbonate; organic pigments; and composite particles obtained by coating the surfaces of inorganic particles with organic particles, said core particles having an average particle size of 1 to 30 μm, and 0.5 to 70 part by weight of silicone elastomer particles adhered to the surfaces of the core particles, said silicone elastomer particles having a particle size of 50 to 800 nm, wherein the silicone elastomer particles are adhered to the surfaces of the core particles by a silicone resin binder, the silicone elastomer is a rubber elastomer having linear organosiloxane blocks represented by the following formula (1): in which R the silicone resin binder is a polymer formed of one or more of structural units selected from [R