SILICON-TITANIUM-MIXED POWDER MANUFACTURED BY FLAME HYDROLYSIS, METHOD OF MANUFACTURING IT, SUNSCREEN CONTAINING IT, AND USE OF THE POWDER

摘要

PROBLEM TO BE SOLVED: To provide powder overcoming defects characteristic of conventional technologies. SOLUTION: The silicon-titanium-mixed powder is manufactured by flame hydrolysis, where a silicon dioxide/titanium dioxide mass ratio at the surface of a primary particle is larger than that of whole primary particles. COPYRIGHT: (C)2003,JPO