Impregnated bodies made of expanded graphite

Details Impregnated bodies made of expanded graphite Impregnated bodies made of expanded graphite

C - Chemistry, Metallurgy

08

J

C08J 5/24 (2006.01) C01B 31/04 (2006.01) C04B 35/52 (2006.01) C04B 35/536 (2006.01) C04B 41/48 (2006.01) C04B 41/83 (2006.01) C08L 63/02 (2006.01) H01M 8/02 (2006.01)

Patent

CA 2364746

Bodies made of expanded graphite are impregnated with low-viscosity, solvent-free, storage-stable, polymerising resins based on an isocyanate and a co- reactants, or an epoxy resin. Bodies are made of a primary product made of expanded graphite with an open pore system, with a particularly preferred range of bulk densities from about 0.5 to about 1.3 g/cm3 and with an ash value of not more than about 4% by weight. Such bodies can also contain a proportion of additives. The impregnated, shaped and rapidly curable graphite bodies are employed as sealing elements, as components in fuel cells or as heat-conducting elements.

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