Graphite material having compressibility and recovering...

Details Graphite material having compressibility and recovering... Graphite material having compressibility and recovering...

C - Chemistry, Metallurgy

04

B

18/1120, 23/303

C04B 35/536 (2006.01) C01B 31/00 (2006.01)

Patent

CA 1090085

ABSTRACT OF THE DISCLOSURE Acid-treated and water-washed graphite particles are further treated with an aqueous solution of a phosphoric acid or a salt thereof, then expanded by heating to 20 to 70 times (in terms of bulk density ratio) the original graphite particles and the expanded particles are pressure-molded to obtain a graphite material having compressibility and recovering property and suitable for use in making gaskets, packings, heat insulators, and cushion elements which are resistant to oxidation and serviceable at high temperatures.

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