Process for producing carbon fibers having excellent properties

Details Process for producing carbon fibers having excellent properties Process for producing carbon fibers having excellent properties

1975-10-30

1977-05-17

Meros, Edward J.

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

4234476, 4234477, 264 292, C01B 3107

Patent

active

040242277

ABSTRACT:
A process for producing a carbon fiber having high tensile strength and high modulus of elasticity which comprises heat-treating an acrylonitrile fiber impregnated with at least one compound selected from specific primary amines and/or quaternary ammonium salts so that an acrylic fiber which is partly insoluble in a concentrated aqueous solution of sodium thiocyanate is obtained; thermally stabilizing said partly insoluble acrylic fiber; and then carbonizing said thermally stabilized fiber.

REFERENCES:
patent: 2758003 (1956-08-01), Kleiner et al.
patent: 3632798 (1972-01-01), Morita
patent: 3720759 (1973-03-01), Overhoff
patent: 3767773 (1973-10-01), Turner et al.
patent: 3814577 (1974-06-01), Menikheim
patent: 3817700 (1974-06-01), Menikheim

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