Title:
PRODUCTION OF STEREOREGULAR POLYSTYRENE AND CATALYST THEREFOR
Document Type and Number:
Japanese Patent JPH0388809
Kind Code:
A
Abstract:
PURPOSE:To obtain the subject polymer having stereoregular syndiotactic structure on an industrial scale at a low cost while reducing the catalyst cost by polymerizing styrene in the presence of a catalyst consisting of a specific Ti compound, methylalumoxane and alumoxanes. CONSTITUTION:The objective polymer having high stereoregularity can be produced by polymerizing styrene in the presence of a catalyst produced by compounding (A) a Ti compound of formula I (X<1> to X<4> are each H, 1-20C alkyl, aryl, arylalkyl, halogen, etc.) (e.g. titanium tetraethoxide), (B) a methylalumoxane of formula II (Me is methyl: 1<=n<=40) or formula III and (C) an alumoxane of formula IV (R is 2-10C alkyl) and/or formula V (e.g. isobutylalumoxane).
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Inventors:
ARAI TERUO
SHO KAZUHIKO
KASAHARA HIDEO
SHO KAZUHIKO
KASAHARA HIDEO
Application Number:
JP22456189A
Publication Date:
April 15, 1991
Filing Date:
September 01, 1989
Export Citation:
Assignee:
ASAHI CHEMICAL IND
International Classes:
C08F4/64; C08F4/60; C08F4/659; C08F4/80; C08F12/00; C08F12/08; (IPC1-7): C08F4/64; C08F12/08
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