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High coking value pitch

United States Patent

June 10, 2014
View the Complete Patent at the US Patent & Trademark Office
A high coking value pitch prepared from coal tar distillate and has a low softening point and a high carbon value while containing substantially no quinoline insolubles is disclosed. The pitch can be used as an impregnant or binder for producing carbon and graphite articles.
Miller; Douglas J. (North Olmsted, OH), Chang; Ching-Feng (Strongsville, OH), Lewis; Irwin C. (Oberlin, OH), Lewis; Richard T. (Auburn, OH)
GrafTech International Holdings Inc. (Parma, OH)
12/ 154,430
May 22, 2008
GOVERNMENT INTERESTS This invention was made with the support of the U.S. Department of Energy, under Award No. DE-FC26-03NT41874. The Government has certain rights in the invention. However, any opinions, findings, conclusions, or recommendations expressed herein are those of the inventors and do not necessarily reflect the view of the DOE.