| abstract |
The present invention provides a transparent substrate having a cured film having sufficient adhesion to a substrate and having sufficient hardness. SOLUTION: 20 to 90 parts by weight of a cationically polymerizable compound selected from an epoxy compound having a silyl group in the molecule, a vinyl ether compound having a silyl group in the molecule, and a hydrolysis condensate thereof; A cured film is formed on the surface of a transparent substrate by using a composition containing 80 parts by weight as a curable material. The transparent substrate is preferably a methyl methacrylate-styrene copolymer resin, and the cured coating is preferably a reflective film having a refractive index of 1.20 to 1.45 and a film thickness of 0.01 to 1 μm. It is a prevention film. [Selection diagram] None |