In situ block copolymer formation during polymerization of a vinyl aromatic monomer
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United States of America Patent
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Feb 24, 1998
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N/A
app pub date -
Mar 5, 1997
filing date -
Mar 29, 1996
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Abstract
The present invention is a free radical bulk polymerization process for producing a rubber modified polymer from a vinyl aromatic monomer comprising: polymerizing the vinyl aromatic monomer in the presence of a diene rubber having at least one stable free radical group, under polymerization conditions such that a vinyl aromatic-diene block and/or graft copolymer rubber is formed.
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