Ziegler-Natta polymerization of styrene monomer
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United States of America Patent
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Nov 12, 1991
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app pub date -
Feb 27, 1991
filing date -
Sep 14, 1989
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Abstract
A process for preparing improved yields of styrene polymers by means of polymerization with a Ziegler-Natta type polymerization catalyst wherein the styrene monomer is first contacted with a hydrogenating agent under hydrogenation conditions such that substantially all phenylacetylene contained in the monomer stream is hydrogenated and thereafter contacting with a Ziegler-Natta catalyst.
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