Process for production of ethylene-cyclic olefin copolymer

Details Process for production of ethylene-cyclic olefin copolymer Process for production of ethylene-cyclic olefin copolymer

1995-04-21

1996-09-24

Teskin, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 82, 526126, 526127, 526132, 526134, 526153, 526170, 526281, 526282, 526308, 526903, 526943, C08F 238, C08F21002

Patent

active

055591990

ABSTRACT:
There is provided a process for producing a cyclic olefin copolymer by copolymerizing (A) ethylene and (B) a particular cyclic olefin in the presence of (C) a metallocene catalyst and (D) a small amount of an .alpha.-olefin having 3 to 20 carbon atoms. According to the said process, said copolymer can be produced at a high activity and its molecular weight can be controlled in a wide range. The copolymer produced by the said process has excellent properties inherent to the cyclic olefin copolymer.

REFERENCES:
patent: 4614778 (1986-09-01), Kajiura et al.
patent: 5003019 (1991-03-01), Ishimaru et al.
patent: 5008359 (1991-04-01), Hunter
patent: 5087677 (1992-02-01), Brekner et al.
patent: 5179171 (1993-01-01), Minami et al.
patent: 5225503 (1993-07-01), Sagane et al.
patent: 5272235 (1993-12-01), Wakatsuru et al.
Hawley's Condensed Chem. Dict. (12th ed.) van Nostrand Reinhold, N.Y., 349 1993).

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