Impact modified syndiotactic polystyrene blend
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United States of America Patent
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Jul 7, 1998
Grant Date -
N/A
app pub date -
May 31, 1996
filing date -
Oct 5, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to an impact resistant polystyrene composition which comprises 5 to 97% by weight of an (a) styrenic polymer having syndiotactic configuration, 2 to 95% by weight of a (b) rubbery elastomer having an olefinic component or a polyolefin, and 0.5 to 10% by weight of a (c) styrene/olefin block or graft copolymer having a micro-phase separation temperature of 180.degree. C. at the highest when diluted with dioctyl phthalate to a solution with a concentration of 60% by weight; according to the present invention, an impact resistant polystyrene composition can be provided which is greatly enhanced in impact resistance and extensibility without impairing heat resistance and modulus of elasticity.
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