Optically antisotropic carbonaceous pitch

Details Optically antisotropic carbonaceous pitch Optically antisotropic carbonaceous pitch

1983-04-22

1985-08-13

Dixon, Jr., William R.

Mineral oils: processes and products

Products and compositions

Asphalts, tars, pitches and resins

208 45, 4234474, 4234476, 264 292, C10C 300

Patent

active

045348502

ABSTRACT:
A composition for an optically anisotropic carbonaceous pitch suitable for the production of a carbon material having a high tensile strength and a high modulus of elasticity. The composition comprises about 2 to 20 percent by weight of a first, n-heptane-soluble component, about 15 to 45 percent by weight of an n-heptane-insoluble and benzene-soluble, second component and the balance of the composition including benzene-insoluble components. The composition has a volume ratio of an optically anisotropic phase of at least about 90% and a softening point of up to about 320.degree. C.

REFERENCES:
patent: 4017327 (1977-04-01), Lewis et al.
patent: 4197283 (1980-04-01), Crepaux et al.
patent: 4209500 (1980-06-01), Chwastiak
patent: 4317809 (1982-03-01), Lewis et al.
patent: 4351816 (1982-09-01), Schulz
patent: 4402928 (1983-09-01), Lewis et al.

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