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. 28, 1991
Filed:
Nov. 23, 1988
James B Noe, Florence, AL (US);
Charles C Chiu, Strongsville, OH (US);
Union Carbide Corporation, Danbury, CT (US);
Abstract
A method of sealing the surfaces of porous carbon and graphite articles by impregnation at ambient pressure using a treating solution comprising a high temperature polymerizable liquid resin. The liquid treating solution, when upon the surface of the article, is of sufficiently low viscosity to allow infiltration of the treating solution into the pores of the surface of the article. The treated article then undergoes a controlled heating cycle, which cures the infiltrated resin in situ. Subsequent treatments and surface conditioning techniques are utilized to produce a thin, level, liquid and gas impervious coating on the surfaces of the article.