Starting pitches for carbon fibers

Details Starting pitches for carbon fibers Starting pitches for carbon fibers

1982-04-09

1983-08-09

Vertiz, O. R.

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

4234476, 208 22, 208 40, D01F 912, C10C 302, C10C 300

Patent

active

043978304

ABSTRACT:
A starting pitch for carbon fibers, obtained by (A) mixing (1) a heavy fraction oil boiling at not lower than 200.degree. C. obtained at the time of steam cracking of petroleum with (2) a hydrogenated oil selected from aromatic hydrocarbons of 2-10 rings in which the nuclei have been hydrogenated and specific fractions boiling at 160.degree.-650.degree. C. and containing such nuclei-hydrogenated hydrocarbons and then (B) heat treating the resulting mixed oil at 370.degree.-480.degree. C. and 2-50 Kg/cm.sup.2.G to obtain the starting pitch for carbon fibers.

REFERENCES:
patent: 4197283 (1980-04-01), Crepaux et al.
patent: 4320107 (1982-03-01), Oyabu et al.

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