Hydroentangled filter media and method
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United States of America Patent
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Jun 3, 2008
Grant Date -
May 25, 2006
app pub date -
Jan 9, 2006
filing date -
Jan 17, 2001
priority date (Note) -
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Abstract
A filter media formed in accordance with the present invention comprises hydroentangled, predominantly polyester staple length fibers having a basis weight of no more than about 12 oz/yd.sup.2. The filter media exhibits a Mullen burst strength of at least about 395 psi, and machine-direction and cross-direction shrinkage of less than about 3%, preferably less than about 2% . The filter media exhibits a machine-direction tensile strength of at least about 105 lb/in, and a cross-direction tensile strength of at least about 110 lb/in.
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