Patent ID: 7115541

Claim:
A catalyst composition comprising an imide compound represented by following Formula (1): wherein R 1 , R 2 , R 3 , and R 4 are the same or different and are each a hydrogen atom, a halogen atom, a C 1 –C 10 alkyl group, an aryl group, a cyclopentyl or cyclohexyl group, a hydroxyl group, a C 1 –C 10 alkoxy group, a carboxyl group, a C 1 –C 20 alkoxycarbonyl group, a C 3 –C 15 cycloalkyloxycarbonyl group, a C 6 –C 20 aryloxycarbonyl group, a C 7 –C 21 aralkyloxycarbonyl group, an acyl group, or an acyloxy group, where at least two of R 1 , R 2 , R 3 , and R 4 may be combined with each other to form a double bond, or a C 5 –C 12 aromatic or alicyclic or bridged ring, and where at least one N-substituted cyclic imido group indicated in Formula (1) may further be formed on R 1 , R 2 , R 3 , and R 4 or on the double bond or on the aromatic or alicyclic or bridged ring formed by at least two of R 1 , R 2 , R 3 , and R 4 and wherein R is a group which can form an acetal or hemiacetal with a hydroxyl group or a group obtained from an acid by eliminating an OH group from the acid and wherein the imide compound may also have a plurality of N-oxy cyclic imide skeletons bonded through R, which N-oxy cyclic imide skeletons are obtained from the N-substituted cyclic imide represented by formula (1) by eliminating R therefrom, in combination with a metallic compound.