Process for preparing pitch for matrix

Details Process for preparing pitch for matrix Process for preparing pitch for matrix

1993-01-27

1994-03-08

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

26421111, 26421117, D01F 1110, D01F 1112, D01F 1114

Patent

active

052924734

ABSTRACT:
A process for preparing pitch for matrix wherein an optically isotropic pitch is formed into a fibrous pitch, and the fibrous pitch thus obtained is nitrated with a nitration reagent in the presence of an acid catalyst. The resulting pitch can be carbonized with a low energy, is high in carbonization yield, low in softening point and excellent in moldability and impregnability.

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