Process for producing a styrene polymer and a catalyst for use therein
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United States of America Patent
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Jul 4, 1995
Issued Date -
N/A
app pub date -
Aug 27, 1993
filing date -
Dec 28, 1990
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Abstract
There are disclosed a process for producing a styrene polymer having a high degree of syndiotactic configuration at a reduced cost and an enhanced efficiency, and a catalyst to be used therefor which comprises (A) a specific transition-metal compound, (B) a specific coordination complex compound and (C) a compound having an alkyl group. The catalyst according to the present invention is inexpensive compared with the conventional catalyst containing aluminoxane as the major ingredient, and exhibits a high activity in polymerizing a styrenic monomer into styrene polymer with a high degree of syndiotacticity as well as a high yield and conversion rate.
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