PITCH FOR DIRECT SPINNING INTO CARBON FIBERS DERIVED FROM A STEAM CRACKER TAR FEEDSTOCK

摘要

- 27 -ABSTRACT OF THE DISCLOSUREA pitch suitable for carbon fiber manufacturefeatures a pitch having a weight content of between 80and 100 percent toluene insolubles. The pitch isderived from a deasphaltenated middle fraction of afeedstock. The pitch is characterized as being rela-tively free of impurities and ash. The pitch can bespun directly into carbon fibers.