Spinnable precursors from petroleum pitch, fibers spun therefrom

Details Spinnable precursors from petroleum pitch, fibers spun therefrom Spinnable precursors from petroleum pitch, fibers spun therefrom

1983-03-14

1985-03-05

Doll, John

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

4234476, 208 22, 208 45, D01F 912

Patent

active

045030260

ABSTRACT:
A spinnable precursor from petroleum pitch is obtained by isolating a particular fraction of a molten carbonaceous pitch, which has had at least a portion of the polycondensed aromatic oils normally present in the pitch removed. The deoiled pitch is then subjected to a two-stage extraction in an organic solvent in which it has a reversed solubility curve, followed by thermal treatment. The thus obtained precursor can be directly spun into fiber.

REFERENCES:
patent: 4219404 (1980-08-01), Dickakian
patent: 4271006 (1981-06-01), Dickakian
patent: 4277324 (1981-07-01), Greenwood
patent: 4363715 (1982-12-01), Dickakian

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