Patent ID: 6106605
Filing Date: 2000-08-22
Classification: C08J,C08L,C09D,Y10T

Abstract:
A silica-free coating composition for protecting a substrate from ultraviolet radiation and abrasion comprising a reaction product of:a. a partially hydrolyzed alkoxide selected from compounds of the general formula R.sub.x Si(OR').sub.4-x wherein R is an alkyl radical, and x is an integer and is less than 4; andb. an organic compound which absorbs ultraviolet radiation selected from the group consisting of hydroxybenzophenone and hydroxybenzotriazole, where the terminal hydroxyl group is available for reacting with silanol groups, andwherein R' of said partially hydrolyzed alkoxide is an alkyl radical selected from the group consisting of methyl, ethyl, propyl and butyl radicals.