| abstract |
It is an object of the present invention to provide a coating agent that has excellent adhesion to a plastic substrate and can form a layer having transparency and a high refractive index. The coating agent of the present invention has the formula (I) [wherein A represents a phenyl group or a naphthyl group which may have an electron-donating group as a substituent. Z is a carbon atom or silicon atom, R 2 is a hydrogen atom, a hydroxyl group, a linear or branched alkyl group, a linear or branched alkoxy group, a cyclic alkyl group, or a cyclic alkoxy group, X is a single bond; An atom, a sulfur atom, a selenium atom, -NR-, a divalent aliphatic ring group, an arylene group, an amide structure or an alkylene group which may contain a urethane structure; a divalent aliphatic ring group; or an arylene group, Y is a polymerizable functional group, n is an integer of 2 or 3, m is an integer of 1 or 2, l is an integer of 0 or 1, and n + m + 1 = 4. When n is an integer of 2 or 3, A may be the same or different. The compound represented by this is contained. [Chemical 1] |