Hydroentangled filter media with improved static decay and method
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United States of America Patent
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Sep 13, 2005
Grant Date -
Oct 28, 2004
app pub date -
Oct 21, 2003
filing date -
Oct 22, 2002
priority date (Note) -
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Abstract
The present invention is directed to a filter media comprised of an electro-conductive scrim so as to improve on the dissipation time of an electrostatic charge. Further, the present invention is directed to a method of making such a filter media, which is formed through hydroentanglement, thus avoiding the deleterious effects of mechanical needling, while providing a filter media having the requisite strength characteristics, without possessing a limiting factor in performance. The filtration media of the present invention also demonstrates a highly desirable uniformity for cost-effective use.
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