Blend of polytetrafluoroethylene, glass and polyphenylene sulfide fibers and filter felt made from same
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United States of America Patent
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Issued Date -
Jul 26, 2007
app pub date -
Jan 24, 2006
filing date -
Jan 24, 2006
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Abandoned
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Abstract
An improved intimate cardable fiber blend containing polytetrafluoroethylene fibers, dual glass fibers and polyphenylene sulfide fibers and a filtration felt including a needled batt of the intimate cardable fiber blend made by mechanically blending the polyphenylene sulfide fibers and glass fibers with polytetrafluoroethylene fibers, carding the blend to form a nonwoven batt and needling the batt to provide a felt.
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