Acrylic fiber and process for production thereof

Details Acrylic fiber and process for production thereof Acrylic fiber and process for production thereof

1993-02-25

1995-05-09

Edwards, N.

Stock material or miscellaneous articles

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

Rod, strand, filament or fiber

428367, 5263076, D02G 300

Patent

active

054138582

ABSTRACT:
Acrylic fiber comprising an acrylonitrile-based copolymer comprising 96.0 to 98.5% by weight of acrylonitrile units, 1.0 to 3.5% by weight of acrylamide units and 0.5% by weight or more of methacrylic acid units, the percentage by weight (A) of acrylamide units and the percentage by weight (M) of methacrylic acid units in the copolymer satisfying the following equations (I) and (II), and adsorbed iodine in an amount of 1% by weight or less based on the weight of the copolymer:

REFERENCES:
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patent: 4002809 (1977-01-01), Kozuka et al.
patent: 4017561 (1977-04-01), Miessen et al.
patent: 4020037 (1977-04-01), Hahnke et al.
patent: 4452860 (1984-06-01), Obama et al.
patent: 4659623 (1987-04-01), Yoshinari et al.
patent: 4695415 (1987-08-01), Setsuie et al.
patent: 4869856 (1989-09-01), Takahashi et al.

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