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. 12, 1984
Filed:
Feb. 28, 1983
Michael J Block, Fullerton, CA (US);
Union Oil Company of California, Los Angeles, CA (US);
Abstract
A carbon-metal phosphate composite comprises a carbon body having a glassy metal metaphosphate distributed therethrough and coating the surface thereof, wherein said metal metaphosphate is a product of the reaction between a metal salt and a nonionic organophosphorus ester. The composite is characterized by an improved resistance to oxidation at elevated temperatures and a decreased coefficient of friction as compared to carbon bodies. The composite is made by contacting a carbon body, having an external surface and an internal surface provided by an open network of connecting pores, with a solution comprising a nonionic organophosphorus ester and a metal salt to coat both the internal and external surface thereof, curing said coated carbon body to react said organophosphorus ester with said metal salt to provide a metal-organophosphorus salt, calcining said cured carbon body to decompose said metal-organophosphorus salt to provide a metal metaphosphate and recovering a carbon composite having said metal metaphosphate uniformly distributed therethrough and continuously coated on the surface thereof.