Air filtration media

Details Air filtration media Air filtration media

1995-04-24

1997-03-04

Spitzer, Robert

Gas separation

Specific media material

Fibrous or strand form

55381, 55DIG12, 1621573, B01D 2931

Patent

active

056074913

ABSTRACT:
An air filtration media comprises a single layer of randomly oriented and randomly intermingled synthetic, polymeric resin microfibers, staple fibers and bonding fibers. The microfibers, taken as a whole, have an average fiber diameter no greater than 5 microns and comprise between 50% and 90% by weight of the filtration media; the staple fibers, taken as a whole, have an average fiber diameter between 10 and 30 microns and typically, comprise between 5% and 45% by weight of the filtration media; and the bonding fibers, taken as a whole, have an average fiber diameter between 0.9 and 15 denier and comprise between 5% and 25% by weight of the filtration media. The bonding fibers have thermoplastic surfaces with a lower temperature softening point than the microfibers and the staple fibers and bond the fibers together to form the air filtration media.

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Polymer Engineering and Technology; Synthetic Fibers in Papermaking, Edited by O. A. Battista, Interscience Publishers, 1964, pp. 86-89.

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