Method for producing a precursor pitch for carbon fiber

Details Method for producing a precursor pitch for carbon fiber Method for producing a precursor pitch for carbon fiber

1984-08-28

1986-03-25

Metz, Andrew H.

Mineral oils: processes and products

Asphalts, tars, pitches and resins; making, treating and...

Solvent extraction

208 44, 208 40, 4234471, 4234474, C10C 302, C10C 308, D01F 914

Patent

active

045781770

ABSTRACT:
A precursor pitch suitable for production of carbon fiber which is excellent in thermal stability, spinnability, infusibility and is few in impurities, is produced by heating a coal tar pitch at a temperature of 350.degree.-500.degree. C. to form mesophase and extracting the thus heated pitch with a tar series light oil to obtain the precursor pitch.

REFERENCES:
patent: 4184942 (1980-01-01), Angier et al.
patent: 4277324 (1981-07-01), Greenwood
patent: 4381990 (1983-05-01), Noguchi et al.
patent: 4402928 (1983-09-01), Lewis et al.
patent: 4454019 (1984-06-01), Izumi et al.

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