Process for producing carbon fiber and graphite fiber

Details Process for producing carbon fiber and graphite fiber Process for producing carbon fiber and graphite fiber

1988-04-22

1990-01-23

Doll, John

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

4234471, 4234472, 4234476, 423448, 264 292, D01F 912

Patent

active

048957127

ABSTRACT:
A process for producing carbon fiber or graphite fiber is provided. The process comprises spinning a carbonaceous pitch, doubling spun pitch fiber bundles, adding a heat resistant doubling treatment oil, passing the fiber bundles continuously and linearly through an oxygen rich gas, infusibilizing at a temperature of 350.degree. C. or less, then carbonizing or graphitizing infusibilized fiber bundles.

REFERENCES:
patent: 4186179 (1980-01-01), Katsuki et al.
patent: 4193252 (1980-03-01), Shepherd et al.
patent: 4276278 (1981-06-01), Barr et al.
patent: 4496631 (1985-01-01), Adachi et al.
patent: 4575411 (1986-03-01), Uemura et al.
patent: 4582662 (1986-04-01), Koga et al.
patent: 4656022 (1987-04-01), Uemura et al.

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