CORE-SHELL TYPE TETRAGONAL TITANIUM OXIDE SOLID SOLUTION AQUEOUS DISPERSION METHOD FOR MAKING THE SAME UV-SHIELDING SILICONE COATING COMPOSITION AND COATED ARTICLE

摘要

The present invention provides a core-shell tetragonal titanium oxide solid solution aqueous dispersion obtained by dispersing a core-shell tetragonal titanium oxide solid solution having a core of tetragonal titanium oxide containing tin and manganese as a nucleus and a silicon oxide shell in an aqueous dispersion medium. Regarding the aqueous dispersion of the core-shell tetragonal titanium oxide solid solution, the average particle diameter of the fine particles and the core-shell solid solution is 30 nm or less and 50 nm or less, respectively, and the high amounts of tin and manganese are 10 to 1,000 in molar ratio with titanium. will be. According to the present invention, there is provided an ultraviolet-shielding silicone coating composition (hard coating agent) and the like containing the dispersion liquid which provides a cured film having both high weather resistance and high ultraviolet shielding properties and excellent transparency, scratch resistance and adhesion without compromising designability. can do.