Modified polyphenylene ether resins having improved processability and oxidative stability
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United States of America Patent
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Jun 1, 1993
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N/A
app pub date -
Aug 24, 1988
filing date -
Aug 28, 1986
priority date (Note) -
Expired
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Abstract
The processability and resistance to oxidative degradation of polyphenylene ether resins, alone, or in combination with a styrene resin, is improved by including a modifier comprising an alpha, beta-unsaturated carboxylic acid or derivative. In an embodiment, the formation of a composition comprising a poly(2,6-dimethyl-1,4-phenylene ether) and 2 parts per hundred of dibutyl maleate results in a 26 percent improvement in spiral flow, and a 30 percent reduction in oxygen uptake at 115.degree. C. enhancing the utility of polyphenylene ether resins as extrusion and injection molding materials.
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