Impact resistant polystyrene composition
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United States of America Patent
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Dec 21, 1999
Issued Date -
N/A
app pub date -
Jan 13, 1997
filing date -
Nov 28, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
There is disclosed an impact resistant polystyrene composition which comprises 5 to 98% by weight of an (a) styrenic polymer having a syndiotactic configuration and 2 to 95% by weight of a (b) styrene/diolefin diblock copolymer, styrene/diolefin/styrene triblock copolymer or styrene/diolefin random compolymer, each having a hydrogenation rate of 70 to 98 mol %, and optionally a (c) rubbery elastomer having an olefinic component or polyolefin, a (d) poly(phenylene ether), etc. The above composition is greatly enhanced in its impact resistance and elongation properties without deterioration of heat resistant stability of color tone, etc.
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