Filter with EPTFE and method of forming
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United States of America Patent
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Apr 10, 2012
Grant Date -
Sep 29, 2011
app pub date -
Jun 10, 2011
filing date -
Apr 5, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A filter media product and method of making the same wherein the filter media is pleatable and has at least one support scrim comprised of a melt bonded non-woven material or a fuse bonded non-woven material bonded to a layer of expanded polytetrafluoroethylene. The filter media may have a single support scrim with one or more layers and optionally may have a support scrim on both an upstream and downstream surface where both or neither support scrim is multilayered. The filter media may have an efficiency greater than, equal to, or less than HEPA.
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