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:
May. 05, 1992
Filed:
Aug. 06, 1990
Mitsuru Yoshida, Fujioka, JP;
Mitsubishi Pencil Co., Ltd., Tokyo, JP;
Abstract
A process for producing a lead wire of hard carbon for supplying power to a fuel battery, including the steps of mixing carbon powder and monomer or precondensate of furan resin with binder containing as a main ingredient chlorine-containing vinyl resin which is carbonized after calcining, uniformly mixing and dispersing the mixture composition, applying high shearing force to the mixture composition, extrusion molding the composition in a rod shape, insolubilizing and infusibilizing the molding, and calcining the molding in an inert gas atmosphere, thereby obtaining the lead wire of hard carbon for supplying power to the fuel battery. Thus, the process can industrially simply and inexpensively produce lead wires of hard carbon for supplying power with small electric resistance to the fuel battery which does not consume electricity generated as Joule heat, and has excellent corrosion resistance against electrolytes of high temperature and high acid concentration.