Composite material for metal gasket
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United States of America Patent
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Aug 19, 2003
Grant Date -
Sep 12, 2002
app pub date -
Oct 23, 2001
filing date -
Oct 24, 2000
priority date (Note) -
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Abstract
The composite material for a metal gasket includes a metal plate; a rubber layer fixed on the surface of the metal plate; and a solid lubricant layer fixed on the rubber layer. The solid lubricant layer contains polytetrafluoroethylene and a resin as main components, and has a friction coefficient equal to 0.15 or lower. Thus, the seal durability of the metal gasket is improved by effectively preventing fretting wear.
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