Useful titanium dioxide/the grain surface of the particulate titanium dioxide below the strontium titanate compound particulate and

摘要

PROBLEM TO BE SOLVED: To improve transmissivity to visible ray while keeping ultraviolet ray shielding ability of fine particulate titanium oxide used for the purpose of ultraviolet ray shielding.;SOLUTION: The titanium oxide/strontium titanate combined fine particle having ultraviolet shielding ability has a shell layer which covers at least a part of the particle surface of fine particulate titanium oxide having ≤0.1 μm average particle diameter and is composed of strontium titanate integrated with titanium dioxide of a core part.;COPYRIGHT: (C)2004,JPO&NCIPI