RESIN POWDER THAT CONTAINS METAL OXIDE ENCAPSULATED THEREIN, LIQUID DISPERSION AND AQUEOUS DISPERSION THAT CONTAIN SAME, PROCESS FOR PRODUCTION OF RESIN POWDER THAT CONTAINS METAL OXIDE ENCAPSULATED THEREIN, AND COSMETICS

摘要

The metallic oxide particle-containing resin powder of the invention is resin powder in which metallic oxide particles having a UV shielding function, in which the average particle diameter of the resin powder is 0.1 µ m to 1 µ m are contained in a (meth) acrylic-based resin , the metallic oxide particles are particles that include one or two or more selected from a group of zinc oxide, titanium oxide, cerium oxide, and iron oxide, and have an average particle diameter of 0.003 µ m to 0.1 µ m, the content of the metallic oxide particles in the resin powder is 1% by mass to 80% by mass, and the metallic oxide particles are dispersed in the resin powder without being exposed on the surface of the resin powder, according to the metallic oxide particle-containing resin powder, it is possible to make the powder itself into fine particles, improve the UV absorbing performance, and improve the transparency with respect to visible light rays.