Poly(arylene sulfide) fibers

Details Poly(arylene sulfide) fibers Poly(arylene sulfide) fibers

1976-05-28

1978-07-04

Marquis, Melvyn I.

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

Synthetic resins

Treating polymer containing material or treating a solid...

57140R, 57157R, 66169R, 528503, 528373, C08F 2800

Patent

active

040987760

ABSTRACT:
Tenacity and boiling water shrinkage of poly(arylene sulfide) fibers are improved by a heat treatment at temperatures of at least about 100.degree. C (212.degree. F) but below the temperature at which fibers begin to stick to each other, for a time period sufficient to attain desired tenacity or boiling water shrinkage.

REFERENCES:
patent: 3562199 (1971-02-01), Hill, Jr. et al.
patent: 3793256 (1974-02-01), Scoggin
patent: 3912695 (1975-10-01), Short et al.

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