| abstract |
A compound capable of increasing the scratch resistance of, for instance, a hard-coat agent and a resin composition for a coating agent containing the compound are shown. The resin composition for a coating agent of the present application contains: a silicon compound (a) represented by formula (I) of the specification; and a curable resin (b). In formula (I), R 1 is a C 3 or C 4 alkylene group, and X is a group represented by formula (II) of the specification having a urethane skeleton and having a (meth)acryloyl group at an end. In formula (II), R 2 is hydrogen or a methyl group, and n is an integer of 0 or 1. The molecular weight of the silicon compound (a) is 500 to 699. |