Method for preparing a homo-and co-polymers by...

Details Method for preparing a homo-and co-polymers by... Method for preparing a homo-and co-polymers by...

2006-02-14

2006-02-14

Teskin, Fred (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S169100, C526S281000

Reexamination Certificate

active

06998450

ABSTRACT:
The present invention provides a method for preparing homo- and co-polymers by polymerizing cyclic olefin compounds using addition polymerization. The method can produce a cyclic olefin polymer having a high molecular weight with a high yield in the presence of, as an addition polymerization catalyst, a complex prepared by mixing a nickel salt compound and an organoaluminoxane compound with at least one fluorine-containing aromatic hydrocarbon compound represented by the following formula 1 or 2 as a catalyst activator:in-line-formulae description="In-line Formulae" end="lead"?C6RmH6-mFormula 1in-line-formulae description="In-line Formulae" end="tail"?where R is CF3; and m is from 1 to 3, orin-line-formulae description="In-line Formulae" end="lead"?C6FnH6-nFormula 2in-line-formulae description="In-line Formulae" end="tail"?where n is from 1 to 6.

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