High density nonwoven filter media

Details High density nonwoven filter media High density nonwoven filter media

1998-08-05

2000-07-18

Copenheaver, Blaine

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Nonwoven fabric

Autogenously bonded nonwoven fabric

442340, 442351, 442361, 442382, 442411, D04H 154, B32B 2712

Patent

active

060907312

ABSTRACT:
The invention provides a sheet filter medium having autogenously bonded uncrimped conjugate fibers which contain a polyolefin and another thermoplastic polymer that have different melting points. The filter medium has a density between about 0.07 g/cm.sup.3 and about 0.2 g/cm.sup.3. The invention additionally provides a three-dimensionally thermoformed filter medium that has a density between about 0.07 g/cm.sup.3 and about 0.5 g/cm.sup.3.

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