Filter element comprising glass fibers

Details Filter element comprising glass fibers Filter element comprising glass fibers

1988-12-08

1990-04-17

Spitzer, Robert

Gas separation

Specific media material

With coating, impregnant, or bonding agent

55527, 55528, 55DIG44, 162146, 162207, B01D 4602

Patent

active

049177141

ABSTRACT:
Provided is a strong, flexible filter element comprising a wet laid non-woven element of glass fibers, synthetic short fibers, and polymer fibrids having a softening point below the softening point of the short fibers. In the filter element, the glass fibers are bound to the synthetic short fibers, e.g., aromatic polyamide short fibers such as poly(m-phenylene isophthalamide) short fibers, by the polymer fibrids, e.g., cellulose acetate fibrids, which act as a binder. The filter element exhibits excellent chemical resistance and a usefulness in removing particulates from gases at temperatures below 400.degree. F.

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