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:
Dec. 31, 1991
Filed:
Jan. 31, 1990
Ikuo Seo, Iwaki, JP;
Yosinobu Murakami, Iwaki, JP;
Kureha Kagaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention discloses a process for producing a formed carbon products which comprises the steps of mixing a pitch or a pitch precursor and at least one kind of polymer becoming compatible with the pitch or the pitch precursor by heat-treating and having an aromatic ring and at least one sulfur, oxygen or nitrogen atom in its repeating unit; of heat-treating the mixture to convert it to a raw material pitch and thereafter of at least forming, infusibilizing and carbonizing and which succeeded to simplify a production apparatus and to reduce an energy comsumption by reducing an infusibilizing time without deteriorating physical properties of the carbon products.