C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
117/110, 31/71
C04B 41/45 (2006.01)
Patent
CA 1252620
"Abstract of the Disclosure" 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 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.
452104
Fetherstonhaugh & Co.
Union Oil Company Of California
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