Preparing gasket compositions having expanded microspheres
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United States of America Patent
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Jul 21, 1992
Issued Date -
N/A
app pub date -
May 29, 1990
filing date -
Sep 3, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A gasket which contains microspheres which expand inside the gasket sheet material after the gasket sheet is formed. Such gaskets are especially useful to provide a seal against fluid leaks at significantly lower pressures due to the presence of the microspheres. Some microspheres can expand during use.
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