Process for producing a homogeneous, low softening point,...

Details Process for producing a homogeneous, low softening point,... Process for producing a homogeneous, low softening point,...

C - Chemistry, Metallurgy

10

C

202/46

C10C 3/00 (2006.01)

Patent

CA 1196595

- 57 - ABSTRACT OF THE DISCLOSURE A process for producing optically anisotropic pitch containing 80% or more of an anisotropic phase. A starting material is pyrolytically polycondensed. Afterward, the material is maintained at a temperature of between 350 and 400°C to precipitate a portion of the material rich in the anisotropic phase having a high specific gravity. This portion is separated and further heat treated.

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