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 metal oxide particle-containing resin powder of the present invention is a resin powder formed by impregnating a (meth) acrylic resin with metal oxide particles having an ultraviolet shielding function. The average particle diameter of the resin powder is 0.1 탆 or more and 1 탆 or less, The metal oxide particles are particles having one or more kinds selected from the group consisting of zinc oxide, titanium oxide, cerium oxide and iron oxide and having an average particle diameter of not less than 0.003 탆 and not more than 0.1 탆, The content of the metal oxide particles is 1 wt% or more and 80 wt% or less. The metal oxide particles are dispersed in the resin powder without being exposed on the surface of the resin powder. According to the metal oxide particle-containing resin powder, the powder itself can be made into a fine particle, the absorption performance of ultraviolet rays can be improved, and the transparency to visible light can be improved.