Nonwoven filter media for gas

Details Nonwoven filter media for gas Nonwoven filter media for gas

1994-08-30

1997-01-28

Cannon, James C.

Gas separation: apparatus

Electric field separation apparatus

Collecting electrode details

55528, 55DIG39, 210748, 210243, 2105101, 264466, 428362, 442353, 442359, 442360, 442401, B01D 3916, B01D 4600, B03C 328, B32B 3300

Patent

active

055976450

ABSTRACT:
The present invention provides a filter medium, which contains an electretized nonwoven web of crimped fibers selected from the group consisting of spunbond filaments and staple fibers, wherein the nonwoven web has a Frazier permeability equal to or greater than about 100 ft.sup.3 /min/ft.sup.2 and a density between about 0.01 g/cm.sup.3 and about 0.095 g/cm.sup.3.

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