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. 28, 1982
Filed:
Jan. 19, 1978
Applicant:
Inventors:
Guido Gistinger, Biberbach, DE;
Manfred Schmid, Meitingen, DE;
Assignee:
Sigri Elektrographit GmbH, Meitingen bei Augsberg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427228 ; 264 295 ; 264 296 ; 423445 ; 423448 ; 427379 ; 4274343 ;
Abstract
Increasing the strength and improving other properties of porous carbon or graphite bodies by immersing the porous body in a mixture containing 35-70% hardenable resin and 30 to 65% volatile solvent to impregnate pores. The impregnated porous body is heated to 120.degree. to 180.degree. C. to harden the resin. Carbonization of the body is effected by heating in an inert atmosphere at a rate of at least 3 K/hr to 800.degree.-1300.degree. C. Improved strength bodies are obtained with a single impregnation and single carbonizing step.