Metal-reinforced graphite multilayer sheet
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United States of America Patent
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Jul 10, 2001
Grant Date -
N/A
app pub date -
Feb 4, 1999
filing date -
Feb 4, 1998
priority date (Note) -
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Abstract
A multilayer sheet having high compressive strength, high heat resistance and low permeability relative to fluids, includes layers of graphite foils and metal foils disposed alternating one upon another and parallel, with the graphite foils joined to the metal foils. Each of two layers forming an upper and a lower boundary of the multilayer sheet is a metal foil having a flat outwardly-directed surface completely covered with and joined to a gas-tight foil made of an organic polymer having a long-term temperature stability of at least 150.degree. C. Preferably, no adhesives are used for joining the foils. The multilayer sheet is preferably used for producing flat gaskets.
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