Straight pore microfilter with efficient regeneration
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United States of America Patent
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Issued Date -
May 10, 2012
app pub date -
May 23, 2011
filing date -
May 21, 2010
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Abandoned
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Abstract
A gas particulate filter well-suited for, but not limited to, removing airborne particulates from air. According to one embodiment, the filter is a composite structure including a porous support and an ionomer coating. The porous support is preferably made of a material designed to endow the filter with good mechanical properties. The pores of the porous support are preferably micron or smaller straight pores. The ionomer coating, which is applied to the porous support but does not completely seal the pores of the porous support, is preferably selected to provide the filter with good filtering properties and regeneration through controlled ionomer hydration/dehydration and corresponding ionomer swelling and contraction.
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