Self-supporting filter composite

Details Self-supporting filter composite Self-supporting filter composite

1995-09-29

1997-05-20

Bell, James J.

Gas separation

Two or more separators

Plies or layers of different characteristics or orientation

55527, 55DIG44, 65454, 65462, 156 72, 428 85, 428 95, 428220, 428284, 428285, 428287, 428297, 428298, B01D 5000

Patent

active

056308566

ABSTRACT:
A filter composite comprising a first layer of glass fibers having random orientation, the layer being porous to gas flow therethrough; a porous mat of sufficient stiffness as to support the glass fiber layer during use as a filter, the mat consisting of compacted glass fibers, and; an additional porous layer carried by the mat to block escape of glass fibers or particles from the filter composite during gas flow therethrough. The first layer fibers have diameters between about 0.000035 and 0.00015 inch.

REFERENCES:
patent: 2728699 (1955-12-01), Labino
patent: 2961698 (1960-11-01), Rea
patent: 3262578 (1966-07-01), Dennis
patent: 3690852 (1972-09-01), Smith et al.
patent: 4201247 (1980-05-01), Shannon
patent: 4463048 (1984-07-01), Dickson et al.
patent: 5472467 (1995-12-01), Pfeffer

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