Patent ID: 7666510
Filing Date: 2010-02-23
Classification: C08G,G02B,Y10T

Abstract:
1. An optical element adapted to possess a light influencing property, comprising: a) a substrate; and b) a curable film-forming composition applied to at least a portion of the substrate to form a coating thereon, wherein the curable film-forming composition comprises: i) a resinous material comprising a monomer, oligomer, and/or polymer containing reactive functional groups; ii) a curing agent having two or more reactive functional groups that are reactive with functional groups in the resinous material of i); and iii) a material different from i) and ii), comprising a blocked isocyanate group and another different functional group capable of reacting with functional groups on the resinous material of i), functional groups on the curing agent of ii), functional groups on a superposed coating, and/or functional groups on the substrate, wherein the different functional group on the material of iii) comprises trialkoxysilyl and wherein the isocyanate group is blocked with a blocking agent capable of deblocking at a temperature as low as 100° C. comprising 3,5-dimethylpyrazole and/or N-t-butylbenzyl amine, and wherein the material of iii) is present in the curable film-forming composition at least in an amount sufficient to improve adhesion between the curable film-forming composition and the substrate and/or a superposed coating compared to a substantially identical optical element that does not comprise the material of iii) in the curable film-forming composition.