Acrylic precursor fibers suitable for preparing carbon or graphi

Details Acrylic precursor fibers suitable for preparing carbon or graphi Acrylic precursor fibers suitable for preparing carbon or graphi

1981-01-30

1982-06-22

Wong, Jr., Harry

Bleaching and dyeing; fluid treatment and chemical modification

Chemical modification of textiles or fibers or products thereof

264 292, 264 297, 4234471, 4234472, 525336, 525378, 525379, 525380, 526287, C08F 844, C08F22046, D06C 704

Patent

active

043360220

ABSTRACT:
An acrylic fiber useful in the preparation of precursor fibers for the preparation of carbon or graphite fibers contains 93.0-99.4 mol percent acrylonitrile, 0.6-4.0 mol percent of ammonium or amine having a pKb of 5 or less as neutralizing cations for sulfonate and sulfate end groups derived from the initiator and activator and as neutralizing cations for sulfonate groups derived from one or more sulfonic acid containing comonomers and 0-3.0 mol percent of one or more comonomers selected from the group consisting of simple acrylate or methacrylate esters, simply vinyl esters, styrene, vinyl chloride and vinylidene chloride, the fiber containing no more than 0.3 mol percent of cations other than ammonium or amine.

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