Filter having melt-blown and electrospun fibers
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United States of America Patent
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May 8, 2012
Grant Date -
Jul 22, 2010
app pub date -
Jan 22, 2009
filing date -
Jan 22, 2009
priority date (Note) -
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Abstract
A multi-layer filter media including at least one layer of melt-blown fiber filter media and at least one layer of electrospun nanofiber filter media is provided. The multi-layer filter media of the present invention is configured such that the at least one layer of the melt-blown fiber filter media is on the upstream and the at least one electrospun nanofiber filter media is positioned downstream of the at least one melt-blown fiber filter media.
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