Core shell particle multistage polymer powder, its manufacturing process
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United States of America Patent
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Jul 25, 2017
Grant Date -
Jun 21, 2012
app pub date -
Dec 14, 2011
filing date -
Dec 15, 2010
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Abstract
The present invention relates to new impact modifiers and a process for making these new impact modifiers and their use in polymeric compositions. More particularly the present invention relates to a new polymeric impact modifier with a core-shell structure made by a multistage polymerization process comprising at least one gradient polymer. The present invention relates as well to a process preparing such an impact modifier, especially its recovery process after the end of the polymerization. The present invention also relates to a thermoplastic composition comprising the new impact modifier.
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