Partially aromatic polyamides having improved thermal stability

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof

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528332, 528335, 528336, 528339, 528340, 528347, C08G 4310, C08G 6926

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active

059626283

ABSTRACT:
Improved high temperature polyamides, and particularly partially-aromatic polyamides, containing less than about 40 .mu.eq/g carboxylic acid endgroups. When stabilized with a copper-containing thermal stabilizer, the polyamides exhibit improved thermal oxidative stability.

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