Patent ID: 6969751

Claim:
In a method for preparing homo- and co-polymers by polymerizing cyclic olefin compounds with a catalyst in a non-polar solvent, the catalyst including a complex prepared by mixing a nickel salt compound, an organoaluminoxane compound, and at least one fluorine-containing compound selected from compounds represented by the following formulas 1 to 7: BF 3 .OR 1 R 2 Formula 1 Wherein, R 1 and R 2 are different or the same and independently include a substituent selected from a C 1 â€“C 10 alkyl group, a C 1 â€“C 10 cycloalkyl group, a C 1 â€“C 10 allyl group, a C 1 â€“C 10 aryl group, or C 1 â€“C 10 arylalkyl group, Wherein, R 3 is an alkyl group containing from 2 to 10 carbon atoms, HF.OR 4 R 5 Formula 3 Wherein, R 4 and R 5 are different or the same and independently include a substituent selected from a C 1 â€“C 10 alkyl group, a C 1 â€“C 10 cycloalkyl group, a C 1 â€“C 10 allyl group, a C 1 â€“C 10 aryl group, or C 1 â€“C 10 arylalkyl group, Wherein, R 6 is an alkyl group containing from 2 to 10 carbon atoms, wherein, R 7 , R 8 and R 9 are different or the same and independently include a C 1 â€“C 10 alkyl group, a C 1 â€“C 10 cycloalkyl group, a C 1 â€“C 10 aryl group, a C 1 â€“C 10 arylalkyl group, or a hydrogen atom, BF 3 .n R 10 Formula 6 Wherein, R 10 is H 2 O or CH 3 COOH; and n is 1 or 2, HF.R 11 Formula 7 Wherein, R 11 is pyridine.