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Title:
COPOLYMER, ITS MANUFACTURE, AND MOLDING THEREFROM
Document Type and Number:
Japanese Patent JP3755361
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a copolymer capable of taking a structure contg. no halogen regarded questionable from a view point of environmental pollution, transparent, and excellent in flexibility and heat resistance, an efficient manufacturing method of the copolymer, and moldings transparent and excellent in flexibility and heat resistance. SOLUTION: This copolymer is prepared by copolymerising ethylene and/or an α-olefin, a cyclic olefin, and an alkenyl arom. hydrocarbon, and it contains 0.01-66 mol % cyclic olefin, 3-99 mol % alkenyl arom. hydrocarbon, and more than half as much alkenyl arom. hydrocarbon as the cyclic olefin. In this manufacturing method of the copolymer, ethylene and/or the α-olefin, the cyclic olefin, and the alkenyl arom. hydrocarbon are copolymerised in the presence of a catalyst formed using the following (A), and (B) and/or (C). (A) a specific transition metal complex, (B) an org. aluminum compd., (C) a boron compd.

Inventors:
Nobuo OI.
Suzuki, Yasuaki
Miyatake, Tatsuya
Application Number:
11-350240
Publication Date:
March 15, 2006
Filing Date:
December 09, 1999
Export Citation:
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Assignee:
SUMITOMO CHEM CO LTD
International Classes:
C08F212/08; C08J5/00; C08F4/64; C08F4/6592; C08F210/16; C08F232/00; (IPC1-7): C08F212/08; C08F4/64; C08F210/16; C08F232/00; C08J5/00
Foreign References:
WO1997020872A1
Attorney, Agent or Firm:
久保山 隆
中山 亨