Acrylic fiber and the method for making the same

Details Acrylic fiber and the method for making the same Acrylic fiber and the method for making the same

1979-08-01

1981-03-03

Lieberman, Paul

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525128, 525131, 525907, C08F 830, C08L 7900

Patent

active

042542332

ABSTRACT:
A reinforced acrylic fiber and the method for making the same wherein a diisocyanate selected from the group consisting of: ##STR1## is polycondensed to form a polycarbodiimide in the presence of a spinning dope made up of dimethylacetamide containing 10 to 30 weight percent of acrylic polymer dissolved therein. The polycarbodiimide is present in discrete particles in the spinning dope. The spinning dope containing the polycarbodiimide is extruded to form fibers which have good hot-wet properties.

REFERENCES:
patent: 3639353 (1972-02-01), Brown
patent: 4042558 (1977-08-01), Bonin
patent: 4169866 (1979-10-01), Bonin

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