Wholly aromatic polyamides and copolyamides, and process therefo

Details Wholly aromatic polyamides and copolyamides, and process therefo Wholly aromatic polyamides and copolyamides, and process therefo

1991-05-31

1992-07-21

Kight, III, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528332, 528336, 528338, C08G 6344, C08G 6900

Patent

active

051323931

ABSTRACT:
Novel wholly aromatic polyamides and copolyamides of the formula: ##STR1## are provided. The aromatic polyamides and copolyamides are prepared by condensation polymerizing an aromatic diamine selected from 3,5-diaminobenzophenone and a mixture of 3,5-diaminobenzophenone and m-phenylenediamine with an aromatic dibasic acid chloride in a chemical equivalent amount. The polymers of the invention can be easily dissolved in an organic solvent to give a molding solution suitable for use in the film casting. The film resulted from the polyamides of the invention has excellent physiochemical properties such as durability, chemical resistance, flexibility, compactness, tenacity, transparency and electric insulation.

REFERENCES:
patent: 3960818 (1976-06-01), Spiewak
patent: 4384112 (1983-05-01), Paschke et al.

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