Process for producing mesophase pitch

Details Process for producing mesophase pitch Process for producing mesophase pitch

1985-03-28

1986-12-23

Heller, Gregory A.

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

423445, 423448, 208 22, 208 39, 208 44, C01B 3102, C09C 148, C10C 100, C10C 120

Patent

active

046311815

ABSTRACT:
A mesophase pitch suitable for carbon products, particularly for carbon fibers, which has a mesophase content of at least 40%, preferably at least 60%, and a larger mesophase domain, is produced by adding at least one part by weight of at least one of an alcohol and a phenol to 100 parts by weight of heavy bitumens, subjecting the resulting mixture to pretreatment by heating at least at 250.degree. C., and then subjecting the pretreated mixture to heat treatment until mesophases are formed.

REFERENCES:
patent: 3235482 (1966-02-01), Knoules et al.
patent: 4202868 (1980-05-01), Hayashi et al.
patent: 4209500 (1980-06-01), Chwastiak
patent: 4277325 (1981-07-01), Greenwood
patent: 4379133 (1983-04-01), Zander et al.
patent: 4579645 (1986-04-01), Vemura et al.

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