Patent ID: 7297731
Filing Date: 2007-11-20
Classification: C03C,C09D,G02B

Abstract:
1. A coating dispersion comprising: a polyorganosilsesquioxane; and an oxide powder dispersed in said polyorganosilsesquioxane, said oxide powder having a refractive index from about 1.2 to about 2.7 and including a plurality of particles having a particle size less than about 100 nanometers, said coating dispersion providing a coating having transparency to ultraviolet radiation, wherein said plurality of particles of said oxide powder are surface treated with a surface modifier, wherein said surface modifier is selected from the group consisting of carboxylic acids, carboxylic acid derivatives, polyethylene glycol trialkoxy silane, a carboxylic acid-silane mixture, and a carboxylic acid derivative-silane mixture; wherein the inorganic oxide powder is a mixed oxide of silicon and zirconium.