High Young's modulus poly-p-phenylene terephthalamide fiber

Details High Young's modulus poly-p-phenylene terephthalamide fiber High Young's modulus poly-p-phenylene terephthalamide fiber

1980-03-11

1983-02-22

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

264184, 528336, C08G 6946

Patent

active

043749780

ABSTRACT:
A high Young's modulus poly-p-phenylene-terephthalamide fiber having a unique fine-structure and excellent properties, including excellent resistance to lateral stress and to friction. The fiber is made by extruding an anisotropic dope in a non-coagulating layer, passing the extrudate through a coagulating layer, washing and drying the resulting coagulated fibers in the absence of substantial tension, and heating the fibers under tension.

REFERENCES:
patent: 3227793 (1966-01-01), Cipriani
patent: 3817941 (1974-06-01), Bair et al.
patent: 3819587 (1974-06-01), Kwolek
patent: 3869429 (1975-03-01), Blades
patent: 3869430 (1975-03-01), Blades
patent: 4016236 (1977-04-01), Nagasawa et al.
English Translation of claims 1-3, Japanese Patent Application 143724/1976.
English Translation of claims 1-4, Japanese Patent Publication 37473/1978.

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