An inorganic film-forming coating composition prepared by adding a basic compound (B) to a titanium-containing water based solution (A) obtained by reacting a hydrogen peroxide water with at least one titanium compound selected from the group consisting of a hydrolizable titanium compound, a low condensation product of the hydrolizable titanium compound, titanium hydroxide and a low condensation product of the titanium hydroxide; and an inorganic film-forming method by use of the coating composition.
This application is a 371 national state application of International (PCT) Application No. PCT/JP02/04935, filed on May 22, 2002, that has priority benefit of Japanese Patent Application No. 01/152,446, filed on May 22, 2001.
A titania film-coated powder comprising a base particle having provided thereon at least one titania film, wherein the base particle is coated with the titania film by suspending the base particle in a buffer solution having a pH of from 7.0 to 12.0 to obtain a suspension, and adding a hydrogen peroxide-ammonia mixture solution containing peroxotitanic acid to the suspension to thereby regulate a titania deposition reaction induced by decomposition of the peroxotitanic acid in the suspension.
