Title:
【発明の名称】環状オレフイン系ランダム共重合体の製法
Document Type and Number:
Japanese Patent JPH0819189
Kind Code:
B2
Abstract:
A process for producing a cycloolefin random copolymer, which comprises (1) copolymerizing (a) ethylene or both ethylene and an alpha-olefin having at least 3 carbon atoms with (b) an cycloolefin such as octahydronaphthalenes and bicyclo[2,2,1]hept-2-ene in the presence of (c) a catalyst formed from a soluble vanadium compound and an organoaluminum compound at least one of which has halogen, in (d) a liquid phase composed of a hydrocarbon medium to form a solution of a cycloolefin random copolymer, and (2) contacting the resulting copolymer solution with (e) an adsorbent containing a metal cation.
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Inventors:
Kotaro Kishimura
Hideaki Yamaguchi
Shuji Minami
Hideaki Yamaguchi
Shuji Minami
Application Number:
JP24811387A
Publication Date:
February 28, 1996
Filing Date:
October 02, 1987
Export Citation:
Assignee:
Mitsui Petrochemical Industry Co., Ltd.
International Classes:
C08F2/06; C08F4/60; C08F6/06; C08F6/08; C08F4/68; C08F10/14; C08F32/00; C08F210/02; C08F232/00; C08F232/08; C08G61/08; (IPC1-7): C08F210/02; C08F4/68; C08F6/08; C08F232/00
Attorney, Agent or Firm:
Heiyoshi Odashima (2 outside)
Next Patent: CHARGER FOR LITHIUM ION BATTERY