Process for preparing pitch for matrix
AssigneePetoca, Ltd.
InventorsTakashi Maeda, Toshifumi Kawamura
Life of this patent
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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.
Claims4
A process for preparing a pitch for matrix, which process comprises melt spinning an optically isotropic pitch to form a fibrous pitch, and nitrating the fibrous pitch thus obtained with a nitration reagent in the presence of an acid catalyst.
Dependencies are inferred from the claim text.