Method for producing isotropic pitch, activated carbon fibers an

Details Method for producing isotropic pitch, activated carbon fibers an Method for producing isotropic pitch, activated carbon fibers an

1997-09-05

1999-08-31

Myers, Helane

Mineral oils: processes and products

Asphalts, tars, pitches and resins; making, treating and...

208 22, 208 44, 423 444, C10C 120

Patent

active

059449802

ABSTRACT:
A method for preparing a modified optically isotropic pitch comprising, preparing a synthetic pitch by reacting a member selected from the group consisting of a conjugated polycyclic hydrocarbon containing a low molecular weight alkyl group or a material containing such a substituted hydrocarbon in the presence of hydrofluoric acid/boron trifluoride, and treating the synthetic pitch by passing an oxidizing gas through the synthetic pitch at elevated temperatures.

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patent: 5308599 (1994-05-01), Kawamura
patent: 5356574 (1994-10-01), Tamaki
patent: 5605618 (1997-02-01), Maeda

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