METHOD OF PREPARING PITCH FOR CARBON FIBER
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United States of America Patent
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Issued Date -
Nov 27, 2014
app pub date -
May 24, 2013
filing date -
May 24, 2013
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Abandoned
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Abstract
Disclosed herein is a method of preparing an isotropic pitch for carbon fiber having a high softening point, and more particularly, a method of preparing an isotropic pitch for carbon fiber by mixing petroleum residues with C9 fraction to form a mixture and then heating the mixture to perform heat polymerization. With the method of preparing an isotropic pitch according to the present invention, a separate catalyst is not required, and the isotropic pitch for carbon fiber having a low softening point may be prepared with a high yield even at a relatively low temperature.
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