Polyphenylene sulfone fibers and a method for production thereof

Details Polyphenylene sulfone fibers and a method for production thereof Polyphenylene sulfone fibers and a method for production thereof

1988-07-25

1990-07-17

Kendell, Lorraine T.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

428364, 428376, D02G 300

Patent

active

049420917

ABSTRACT:
Polyphenylene sulfone fibers mainly consisting of a structural unit represented by a general formula ##STR1## (x is 0 or 1 or 2) wherein x, the average value of x, is 1.0 to 2.0, and a method for production thereof. These fibers are prepared by modifying polyphenylene sulfide fibers, whose specific surface area and degree of orientation arr more than 0.4 m.sup.2 /g and more than 70%, respectively, to polyphenylene sulfone fibers represented by a main constituting unit ##STR2## with organic peroxides. These fibers have excellent heat and chemical resistance.

REFERENCES:
patent: 4481260 (1984-11-01), Nohmi
patent: 4726987 (1988-02-01), Trask et al.

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