Surface modified inorganic oxide fine particles, and sunscreen cosmetic material containing same

Abstract

Provided are surface-modified inorganic oxide fine particles that are added with water dispersibility while maintaining properties of inorganic oxide fine particles, such as transparency, ultraviolet blocking ability, weatherability, and photodiscoloration resistance; a method for producing the surface-modified inorganic oxide fine particles; and a sunscreen cosmetic containing the surface-modified inorganic oxide fine particles. The surface-modified inorganic oxide fine particles include inorganic oxide fine particles having an average particle size of 200 nm or less; and a group containing a polyglycerol chain and modifying surfaces of the particles. The inorganic oxide is preferably selected from titanium oxides, silicon oxides, aluminum oxides, zirconium oxide, and zinc oxide.

Dependencies are inferred from the claim text.