Patent ID: 8038832

Claim:
A curable composition comprising (a) a vinyl-based polymer containing at least one (meth)acryloyl group in a molecule thereof and having a number average molecular weight of 500 to 1,000,000, (b) an ethylenic unsaturated group-containing compound, (c) a thixotropic property-imparting agent, (d) fumed silica surface-treated with a (meth)acryloyl group-containing silane and (e) a photopolymerization initiator, wherein the component (c) is organic bentonite, or hydrophobic fumed silica whose surface is hydrophobically surface-treated with a silazane, a chlorosilane, an alkoxysilane or a polysiloxane which has only a methyl group as an organic substituent group bonding to a silicon atom.