Process for producing pitch based graphite fibers

Details Process for producing pitch based graphite fibers Process for producing pitch based graphite fibers

1984-10-10

1986-03-04

Meros, Edward J.

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

264 292, 4234472, 4234474, D01F 914

Patent

active

045740771

ABSTRACT:
Provided is a process for producing a pitch-based graphite fiber, which process comprises treating a pitch fiber in an oxidative gas atmosphere to render it infusible, said pitch fiber being obtained by melt-spinning a carbonaceous pitch, then heat-treating the infusibilized fiber at 400.degree.-750.degree. C. in an inert gas atmosphere to obtain a precarbonized fiber substantially containing oxygen, then raising the temperature to 2,000.degree.-3,000.degree. C. at a rate of 500.degree. C. or higher per minute in an inert gas atmosphere and heat-treating the precarbonized fiber at the raised temperature of 2,000.degree.-3,000.degree. C. in said inert gas atmosphere.

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patent: 3595946 (1971-07-01), Joo et al.
patent: 3972968 (1976-08-01), Kohn
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patent: 4351816 (1982-09-01), Schulz
patent: 4389387 (1983-06-01), Miyamori et al.
patent: 4431623 (1984-02-01), Fug

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