Patent ID: 6451946
Filing Date: 2002-09-17
Classification: C08F,Y10S

Abstract:
A copolymer of (a) ethylene and/or an &agr;-olefin, (b) a cyclic olefin selected from the group consisting of mono-cyclic olefins in which 4 or more of carbon atoms which optionally have a substituent group, form a ring and one carbon-carbon double bond is contained in said ring and poly-cyclic olefins represented by the general formula (IV) described below: wherein each of R7 to R18 independently is a hydrogen atom, a hydroxyl group, an amino group, a phosphino group or an organic group having 1 to 20 carbon atoms, and R16 and R17 may form a ring; and â€œmâ€  indicates an integer of 0 or more, and (c) an alkenyl aromatic hydrocarbon, said copolymer having a cyclic olefin content of 0.01 to 66 mol % and an alkenyl aromatic hydrocarbon content of 3 to 99 mol %, and wherein the alkenyl aromatic hydrocarbon content is more than a half of the cyclic olefin content and the total content of ethylene and/or an &agr;-olefin, cyclic olefin and alkenyl aromatic hydrocarbon are 100 mol % of the copolymer.