Amoco Corporation

Bp Amoco Corporation

Solvay Advanced Polymers, LLC

Robert G Keske

Daniel J Ireland

Jan G Nel

An aqueous-based composition comprising an aqueous solution of the product formed of the combination of a polyamide-amic acid and a triamine, preferably wherein the polyamide-amic acid is prepared from trimellitic acid halide or its equivalent and an aromatic diamine comprising 4,4&prime;-methylenedianiline.

Aqueous-based polyamide-amic acid compositions

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.

Partially aromatic polyamides having improved thermal stability

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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Gainesville, GA, United States of America

Robert G Keske