Increasing rubber phase volume in rubber-modified polystyrene
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United States of America Patent
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Sep 1, 2015
Grant Date -
Oct 30, 2014
app pub date -
Jul 10, 2014
filing date -
Apr 28, 2011
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Abstract
A process for producing rubber modified polymers having an increased rubber phase volume, including feeding a vinyl aromatic monomer and an elastomer to a polymerization reactor to form a reaction mixture, polymerizing the reaction mixture, combining a copolymer to the polymerized reaction mixture to form a combined mixture, subjecting the combined mixture to further polymerization, and obtaining a rubber modified polymer product from the further polymerization.
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