Patent ID: 9168208
Filing Date: 2015-10-27
Classification: A61K,A61Q

Abstract:
1. Ultraviolet-shielding composite particles, comprising: a resin which contains an organic ultraviolet absorbent and metal oxide particles having an ultraviolet-shielding function, the ultraviolet-shielding composite particles having an average particle diameter of 0.05 μm or more and 5 μm or less, wherein the metal oxide particles are particles which include one or two or more selected from the group consisting of zinc oxide, titanium oxide, cerium oxide and iron oxide and have an average particle diameter of 0.003 μm or more and 0.1 μm or less, a content of the organic ultraviolet absorbent in the ultraviolet-shielding composite particles is 0.1% by mass or more and 80% by mass or less, a content of the metal oxide particles is 1% by mass or more and 80% by mass or less, and the metal oxide particles are dispersed in the ultraviolet-shielding composite particles substantially without being exposed on surfaces of the ultraviolet-shielding composite particles.