Patent ID: 7922803

Claim:
A coating composition comprising: (1) 10 to 90 wt % of at least one alkoxysilane compound represented by formula (1) or at least one polyalkoxysilane compound in which the alkoxysilane compounds represented by formula (1) are bonded through a siloxane bond; (2) 1 to 55 wt % of an aminosilane compound represented by formula (2); (3) 1 to 60 wt % of an epoxysilane compound represented by formula (3); (4) 0.1 to 65 wt % of polymeric ultraviolet absorber particles; (5) 0.1 to 30 wt % of at least one curing catalyst; and (6) at least one solvent, wherein the amount of said at least one solvent is from 10 to 1000 parts by weight for 100 parts by weight of the total amount of components (1) to (5), wherein the at least one alkoxysilane compound is represented by formula (1): (R 1 ) m Si(OR 2 ) 4-m (1) wherein each R 1 is individually an alkyl group having 1 to 4 carbon atoms, a vinyl group, a phenyl group, or an alkyl group having 1 to 3 carbon atoms replaced by a methacryloxy group, each R 2 is an alkyl group having 1 to 4 carbon atoms, and m is an integer of 0, 1, or 2; the aminosilane compound is represented by formula (2): (R 11 ) n Si(OR 2 ) 4-n (2) wherein each R 11 is individually an alkyl group having 1 to 4 carbon atoms, a vinyl group, a phenyl group, or an alkyl group having 1 to 3 carbon atoms replaced by at least one group selected from the group consisting of a methacryloxy group and an amino group, provided that at least one R 11 group is replaced by an amino group, each R 2 is an alkyl group having 1 to 4 carbon atoms, and n is an integer of 1 or 2; and the epoxysilane compound is represented by formula (3): (R 21 ) n Si(OR 2 ) 4-n (3) wherein each R 21 is individually an alkyl group having 1 to 4 carbon atoms, a vinyl group, a phenyl group, or an alkyl group having 1 to 3 carbon atoms replaced by at least one group selected from the group consisting of a methacryloxy group, a glycydoxy group, and a 3,4-epoxycyclohexyl group, provided that at least one R 21 group is an alkyl group having 1 to 3 carbon atoms replaced by a glycydoxy group or a 3,4-epoxycyclohexyl group, each R 2 is an alkyl group having 1 to 4 carbon atoms, and n is an integer of 1 or 2.