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Title:
METHOD FOR PRODUCING COPOLYMER
Document Type and Number:
Japanese Patent JP2006057105
Kind Code:
A
Abstract:

To provide a method for efficiently producing a copolymer transparent, excellent in flexibility and heat resistance and capable of containing no halogen viewed with suspicion from a viewpoint of environmental pollution.

The method for producing a copolymer obtained by copolymerization of ethylene and/or an α-olefin, a cyclic olefin and an alkenyl aromatic hydrocarbon is provided, wherein the copolymerization composition of the cyclic olefin is 0.01-66 mol %, the copolymerization composition of the alkenyl aromatic hydrocarbon is 3-99 mol %, and copolymerization composition of alkenyl aromatic hydrocarbon is more than a half of the cyclic olefin copolymerization composition, and the ethylene and/or α-olefin, the cyclic olefin and the alkenyl aromatic hydrocarbon are copolymerized in the presence of a catalyst comprising below-mentioned (A) and (B) and/or (C). (A): a specific transition metal complex: (B) an organoaluminum compound: (C) a boron compound.


Inventors:
OI, Nobuo
Suzuki, Yasuaki
Miyatake, Tatsuya
Application Number:
JP2005000289642
Publication Date:
March 02, 2006
Filing Date:
October 03, 2005
Export Citation:
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Assignee:
SUMITOMO CHEMICAL CO LTD
International Classes:
C08F4/646; C08F210/00; C08F212/00; C08F232/00
Attorney, Agent or Firm:
久保山 隆
中山 亨
榎本 雅之