Patent ID: 7276568

Claim:
A binary copolymer of a straight chain α-olefin and vinylcyclohexane, wherein said binary copolymer has: (1) straight chain α-olefin units in an amount of from 50 to 98% by mol and vinylcyclohexane units in an amount from 2 to 50% by mol, the total amounts of the straight chain α-olefin units and vinylcyclohexane units being 100 mol % by mol, (2) a weight average molecular weight (Mw) of from 20,000 to 400,000, (3) a structure wherein one vinylcyclohexane unit is inserted between two straight chain α-olefin units, (4) a structure wherein two vinylcyclohexane units are connected to each other, and (5) a structure wherein two straight chain α-olefin units are connected to each other.