Cyclic olefin copolymers, compositions and molded articles compr

Details Cyclic olefin copolymers, compositions and molded articles compr Cyclic olefin copolymers, compositions and molded articles compr

1996-01-22

1997-07-15

Teskin, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526133, 526134, 526160, 526170, 524553, 26433117, 525210, C08F23204, C08F23208, C08L 4500

Patent

active

056484437

ABSTRACT:
A process for effectively producing a cyclic olefin polymer and a cyclic olefin/alpha-olefin copolymer without opening the cyclic olefin, is disclosed. Further, a novel cyclic olefin/alpha-olefin copolymer prepared by the above-mentioned process, compositions and molded articles comprising the novel copolymer, are also disclosed. In the process for producing a cylcic olefin based polymer according to the present invention, homopolymerization of a cyclic olefin or copolymerization of a cyclic olefin and an alpha-olefin is effected in the presence of a catalyst comprising, as main ingredients, the following Compounds (A) and (B), and optionally Compound (C):

REFERENCES:
patent: 5344900 (1994-09-01), Maezawa et al.
patent: 5369196 (1994-11-01), Matsumoto et al.
English Language Translation of Japanese Kokai Pat. No. 61-221206, published Oct. 1, 1986.
Tadmor et al, Principles of Polymer Processing, Wiley-Interscience, N.Y., 36-7, 1979.

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