PHOTOCATALYST-CONTAINING SILICONE RESIN COMPOSITION, AND COATED ARTICLE HAVING CURED COATING FILM THEREFROM

摘要

A photocatalyst-containing silicon resin composition which contains TiO2, a compound containing a Zr element, a hydrolyzable silicone resin and a Si element containing compound containing SiO2 particles, wherein the content of the compound containing a Zr element in terms of an oxide is 0.005 to 0.1 parts by weight relative to 1 part by weight of TiO2, the content of the Si element containing compound in terms of an oxide is 0.5 to 6.0 parts by weight relative to 1 part by weight of TiO2, and the content of SiO2 particles is 0.1 to 3 parts by weight relative to 1 part by weight in terms of an oxide of the hydrolyzable silicone resin. The composition allows the formation of a coating film exhibiting high photocatalytic activity, good durability and high transparency by the firing at a relatively low temperature (for example, ca. 100°C).