Process for preparing pitch for matrix.

摘要

Disclosed is a process for preparing pitch for matrix, said process is characterized in that 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 pitch for matrix obtained according to the present invention can be carbonized with a low energy, high in carbonization yield, low in softening point and excellent in moldability and impregnability.