Nonwovens of controlled stiffness and retained foldability
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United States of America Patent
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Issued Date -
Nov 26, 2009
app pub date -
May 16, 2007
filing date -
May 16, 2006
priority date (Note) -
Abandoned
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Abstract
The present disclosure relates generally to a nonwoven filtration media comprising a bonded mix of different, discontinuous, thermoplastic resin fibers and optionally discontinuous cellulosic fibers. The nonwoven media has an advantageous combination of stiffness, foldability, efficiency and the ability to retain a fold. The nonwoven media can be thermally bonded during the production process. The advantageous combination of mechanical properties allow the disclosed nonwoven media to accept and retain folds and pleats better than some conventional filtration materials while the mix of different fibers provides desirable filtration properties.
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