Syndiotactic polystyrene compositions having improved impact strength
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United States of America Patent
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Apr 5, 2005
Grant Date -
Feb 12, 2004
app pub date -
Jun 25, 2003
filing date -
Dec 18, 2000
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Expired
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Abstract
The syndiotactic polystirene resin composition according to the present invention is superior in compatibility between a syndiotactic polystyrene and a rubber component and mechanical properties such as impact strength, in which a syndiotactic polystyrene-maleic anhydride (sPS-MA) and a hydrogenated styrene/butadiene/styrene-maleic anhydride (SEBS-MA) are employed as compatibilizers and a diamine compound is added as a coupling agent. The compatibilizers and coupling agents improve polarity of both the syndiotactic polystyrene and the rubber component and impact strength of the syndiotactic polystyrene composition.
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