Production of aromatic polyamides from dicarboxylic acid and dia

Details Production of aromatic polyamides from dicarboxylic acid and dia Production of aromatic polyamides from dicarboxylic acid and dia

1977-05-27

1978-10-03

Anderson, Harold D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528335, 528346, 528347, 528348, C08G 6928

Patent

active

041183746

ABSTRACT:
Aromatic polyamides having high polymerization degree are produced by polycondensing an arylene containing aminocarboxylic acid, or a dicarboxylic acid with an aromatic diamine in the presence of a phosphorus compound, a tertiary amine and a metal halide using N-methylpyrrolidone and/or dimethylacetamide as a solvent.

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patent: 3652510 (1972-03-01), Blomberg
patent: 3753957 (1973-08-01), Jones
patent: 3932364 (1976-01-01), Yamazaki et al.
patent: 4045417 (1977-08-01), Yamazaki et al.

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