The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 12, 2005
Filed:
Aug. 27, 2003
James William Kortovich, Strongsville, OH (US);
Richard Liichang Shao, North Royalton, OH (US);
Dai Huang, Sagamore Hills, OH (US);
Irwin Charles Lewis, Strongsville, OH (US);
Richard Thomas Lewis, Auburn, OH (US);
James William Kortovich, Strongsville, OH (US);
Richard Liichang Shao, North Royalton, OH (US);
Dai Huang, Sagamore Hills, OH (US);
Irwin Charles Lewis, Strongsville, OH (US);
Richard Thomas Lewis, Auburn, OH (US);
Ucar Carbon Company Inc., Wilmington, DE (US);
Abstract
A process for preparing graphite articles is presented. In particular, the process includes employing a particulate fraction comprising at least about 35 weight percent coke, coal or combinations thereof having a diameter such that a major fraction of it passes through a 0.25 mm to 25 mm mesh screen. The particulate fraction is mixed with a liquid or solid pitch binder, to form a stock blend; the stock blend is extruded to form a green stock; the green stock is baked to form a carbonized stock; and the carbonized stock is graphitized. The stock blend further comprises one or both of carbon fibers (advantageously added after mixing of the particulate fraction and pitch has begun) and small particle size filler (advantageously added as part of the particulate fraction).