Process of making polyacrylonitrile fibers

Details Process of making polyacrylonitrile fibers Process of making polyacrylonitrile fibers

1993-05-06

1994-11-15

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264184, 264211, 26421116, 526 94, 526224, 526227, 526229, 526230, 5263171, 5263183, 526341, D01D 506, D01F 618

Patent

active

053645812

ABSTRACT:
A process for the rapid precipitation polymerization of acrylonitrile and a minor amount of a vinyl carboxylic acid comonomer in an environment of less than 10 ppm metal-ions to produce an acrylonitrile copolymer which, when pyrolyzed in an oxidizing atmosphere, produces a high quality carbon fiber.

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patent: 3920605 (1975-11-01), Sato et al.
patent: 4009150 (1977-02-01), Norling
patent: 4049605 (1977-09-01), Kobashi et al.
patent: 4062857 (1977-12-01), Kobashi et al.
patent: 4126652 (1978-11-01), Oohara et al.
patent: 4201740 (1980-05-01), Hurley
patent: 4267103 (1981-05-01), Cohen
patent: 4452860 (1984-06-01), Obama et al.
patent: 5051216 (1991-09-01), Nakatani et al.

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