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:
Jun. 09, 1987
Filed:
Aug. 06, 1985
Applicant:
Inventors:
Assignee:
Sumitomo Metal Industries, Inc., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29B / ; C01B / ;
U.S. Cl.
CPC ...
264 295 ; 264 296 ; 264 297 ; 264101 ; 264105 ; 264118 ; 264344 ; 423445 ;
Abstract
A method for the manufacture of high-strength, high-density carbon materials is disclosed. The method comprises the steps of pulverizing a carbonaceous raw material having a carbon content of at least 92% by weight, a volatile content of 7-20% by weight up to 900.degree. C., and linear shrinkage as a molded body of at most 6% during heating up to 500.degree. C. to an average particle diameter of greater than 10 .mu.m and at most 40 .mu.m, followed by molding and baking. An organic fiber after baking in an inert atmosphere at a temperature of at least 400.degree. C. may be mixed with the pulverized carbonaceous raw material.