Heat-insulating structural carbon material and process for producing heat-insulating structural carbon material
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United States of America Patent
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Jan 6, 1998
Grant Date -
N/A
app pub date -
Jun 26, 1995
filing date -
Dec 22, 1992
priority date (Note) -
Expired
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Abstract
The invention relates to a heat-insulating structural carbon material and the process for producing thereof. This heat-insulating structural material is prepared from a suspension of discrete carbon fibers in a viscoplastic liquid such as polyglycol, glycerine and petroleum oils, by molding a preform and orienting discrete filaments, followed by baking the preform and depositing pyrolytic carbon in the porous structure thereof. This heat-insulating material comprises a coke matrix, discrete carbon filaments, the coke matrix as a porous film-like structure of coke residue on said filaments, and pyrolytic carbon.
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