Patent ID: 7132460

Claim:
An active energy ray curable composition for coating optical disc, comprising a urethane (meth)acrylate compound (A) having at least one amide group in the molecule, an ethylenically unsaturated compound (B) other than the urethane (meth)acrylate compound (A) and a photopolymerization initiator (C) wherein the urethane (meth)acrylate compound (A) is a urethane (meth)acrylate compound obtained by reacting the following components (a1) to (a4): (a1) an amide-containing compound having two hydroxy groups and at least one amide group in the molecule, (a2) a poly-hydric alcohol compound other than said component (a1), (a3) a diisocyanate compound, and (a4) a hydroxy group-containing (meth)acrylate and wherein the component (a1) is an amide-containing compound obtained by reacting a cyclic hydroxy carboxylate and an amine compound, and the ethylenically unsaturated compound (B) contains a mixture of a compound of the following general formula (I) wherein X 3 is a hydroxy group, and a compound of the following general formula (I) wherein X 3 is an acryloyloxy group or methacryloyloxy group: wherein, and X 1 and X 2 represent an acryloyloxy group or methacryloyloxy group, X 3 represents a hydroxy group, acryloyloxy group or methacryloyloxy group, and R 1 , R 2 and R 3 represent an alkyl group having 1 to 4 carbon atoms.