High temperature filter felt

Details High temperature filter felt High temperature filter felt

1988-09-08

1989-06-20

Petrakes, John

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

28104, 28107, 55527, 55528, 57238, 57239, 57240, 112415, 112416, 210505, 428285, 428286, 428297, 428299, 428300, B01D 3908, B01D 3916, B32B 506, D04B 116

Patent

active

048408387

ABSTRACT:
A high temperature filter felt comprising a scrim and an entangled batt. The machine-direction component of the scrim is made up of intermeshed continuous filament yarns which are 40 to 75% glass fibers and 25 to 60% poly(tetrafluoroethylene) fibers. The fiber of the cross-machine direction component of the scrim is glass, poly(tetrafluoroethylene), aramid, polyacrylate, polyphenylene sulfide or blends of these fibers or the bulked yarn previously described at the machine-direction yarn.

REFERENCES:
patent: 4324574 (1982-04-01), Fagan
patent: 4357386 (1982-11-01), Luciano et al.
patent: 4361619 (1982-11-01), Forsten et al.
patent: 4565735 (1986-01-01), Murka, Jr. et al.
patent: 4612237 (1986-09-01), Frankenburg

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