Patent ID: 6730240
Filing Date: 2004-05-04
Classification: C09D,Y10T

Abstract:
A colored, transparent film-forming composition consisting of (a) a reaction product of an epoxy group-containing alkoxysilane (a-1) selected from the group consisting of &ggr;-glycidoxypropyltrimethoxysilane, &ggr;-glycidoxypropylmethyldimethoxysilane and &ggr;-glycidoxypropyltriethoxysilane and an amino group-containing alkoxysilane (a-2) selected from the group consisting of &ggr;-aminopropyltrimethoxysilane, &ggr;-aminopropyltriethoxysilane, N-(&bgr;-aminoethyl)-&ggr;-aminopropyltrimethoxysilane, N-(&bgr;-aminoethyl)-&ggr;-aminopropylmethyldimethoxysilane and N-(&bgr;-aminoethyl)-&ggr;-aminopropyltriethoxysilane, (a-2) having active hydrogen therein and the weight ratio of (a-1) to (a-2) in the reaction is 6:4 to 9:1, (b) an acid catalyst, (c) an alkali-soluble UV absorber, (d) at least one organic solvent having a boiling point of 100 to 250Â° C., (e) a dye and/or a pigment and, optionally, (f) a stabilizer selected from the group consisting of salicyclic acid, fumaric acid, crotonic acid, succinic acid, tartaric acid, and mixtures thereof.