Filters and methods of manufacturing the same
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United States of America Patent
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app pub date -
Apr 23, 2007
filing date -
Sep 29, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A filter and methods of manufacturing the same. In one embodiment, the filter includes a first scrim made from at least one thermoplastic material; a second scrim made from at least one thermoplastic material; and a middle layer positioned between the first and second scrims. The middle layer includes a dry-laid web of cellulose and opened, individuated staple bicomponent fiber. At least some of the bicomponent fiber in the middle layer is thermally bonded to at least some of the cellulose in the middle layer, and the first and second scrims are thermally bonded to the middle layer.
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