Wholly aromatic polyamide from N,N'-bis (4-amino phenyl)-isophth

Details Wholly aromatic polyamide from N,N'-bis (4-amino phenyl)-isophth Wholly aromatic polyamide from N,N'-bis (4-amino phenyl)-isophth

1989-11-27

1992-03-03

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528312, 528315, 528331, C08G 6932

Patent

active

050934643

ABSTRACT:
New wholly aromatic polyamides are provided. This polymers are prepared by a mixture of N,N'-bis(4-aminophenyl)-isophthalamide and p-phenylenediamine in a tertiary amide solvent containing an alkali metal salt such as LiCl and a tertiary amine as an acid acceptor. The polymers are easily dry-jet spun to form a fiber and cast to form a film. The fiber and film so obtained have ultrahigh tenacity, elasticity and elongation.

REFERENCES:
patent: 3671542 (1972-06-01), Kwolek
patent: 3869429 (1975-03-01), Blades
patent: 3869430 (1975-03-01), Blades
patent: 4511709 (1985-04-01), Yoon et al.

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