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Title:
PREPARATION OF CHEMICALLY HOMOGENEOUS CYCLOOLEFIN COPOLYMER
Document Type and Number:
Japanese Patent JP3773545
Kind Code:
B2
Abstract:

PURPOSE: To obtain a copolymer useful for moldings, etc., in a high space-time yield by polymerizing a polycyclic olefin, a cycloolefin, a noncyclic olefin, which are specified respectively and mixed in a specified ratio, in the presence of a catalyst comprising an aluminoxane and a metallocene under specified conditions.
CONSTITUTION: An intended copolymer is obtained by a process in which (A) 0.1-99.9 wt.% polycyclic olefin of formula I (R1-R4 are each H, 6-16C aryl, 1-8C aralkyl radical), etc., (B) 0-99.9 wt.% cycloolefin of formula II (n is 2-10), and (C) 0-99.9 wt.% noncyclic olefin of formula III (R9-R12 are H, a 1-8C alkyl radical) are polymerized in the presence of a catalyst comprising an alminoxane of formula IV (R13 is 1-6C alkyl, etc.; n is 0-50), etc., and a metallocene of formula V [M' is Ti, etc.; R14, R15 are H, halogen, etc.; R16, R17 are each a hydrocarbon radical; R18 is formula VI (R19, R20 are H, halogen, etc.; M2 is Si, etc.], at -78-150°C and 0.01-64 bar.


Inventors:
Brekner, Michael-joachim
Osan, Frank
Rohrmann, Juergen
Antberg, Martin
Application Number:
JP1992000050543
Publication Date:
May 10, 2006
Filing Date:
March 09, 1992
Export Citation:
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Assignee:
HOECHST AG
International Classes:
C08F32/08; C07F17/00; C08F4/62; C08F10/00; C08F32/00; C08F210/02; C08F232/08; C08F4/639; C08F4/6392; C08F4/659; (IPC1-7): C08F32/08
Domestic Patent References:
JP2173112A
Attorney, Agent or Firm:
社本 一夫
今井 庄亮
増井 忠弐
小林 泰
富田 博行
細川 伸哉