Polystyrenic resin composition
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United States of America Patent
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Apr 10, 2001
Grant Date -
N/A
app pub date -
Nov 10, 1997
filing date -
May 8, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A resin composition comprising polystyrene having the syndiotactic configuration (SPS) showing improved heat stability in heat molding at a high temperature is obtained by adding a combination of a phenolic antioxidant and an antioxidant containing phosphorus to SPS. The molded article is obtained by using the resin composition as the material. Additional use of an antioxidant containing sulfur gives more excellent improvement. The composition may further contain another thermoplastic resin and/or rubber elastomer, a polymer exhibiting compatibility with or affinity for SPS and having a polar group, and/or an inorganic filler in accordance with necessity.
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