PRODUCTION OF PRECURSOR PITCH FOR CARBON FIBER

PURPOSE:To obtain the titled pitch of low viscosity with good thermal stability and spinnability without hydrogenation-treatment, etc., by removing the high- molecular weight component in tar pitch by solvent extraction followed by heat-treatment of the resultant pitch. CONSTITUTION:First, tar pitch...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	KAMISHITA MAMORU, YUMITATE KOZO, OOSUGI YUKIHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS CHEMISTRY FUELS LUBRICANTS METALLURGY NATURAL OR ARTIFICIAL THREADS OR FIBRES PEAT PETROLEUM, GAS OR COKE INDUSTRIES PYROLIGNEOUS ACID SPINNING TECHNICAL GASES CONTAINING CARBON MONOXIDE TEXTILES WORKING-UP PITCH, ASPHALT, BITUMEN, TAR
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