SO.sub.3 -Containing aromatic polyamides

Details SO.sub.3 -Containing aromatic polyamides SO.sub.3 -Containing aromatic polyamides

1980-05-19

1982-03-02

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528172, 528173, 528336, 528341, 524606, 524138, 524104, 524223, C08G 6932

Patent

active

043179029

ABSTRACT:
Certain fiber-forming aromatic polyamides having a high solubility in organic solvents used in their preparation are provided. The polyamides are prepared from diacid chlorides and from diamines containing sulfonate linkages by the low temperature solution polymerization technique. Fibers of the polyamides have a high modulus to tenacity ratio.

REFERENCES:
patent: 3322728 (1967-05-01), Hill et al.
patent: 3931119 (1976-01-01), Leblanc

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