Bag filter comprising polyphenylene sulfide and acrylic fiber

Details Bag filter comprising polyphenylene sulfide and acrylic fiber Bag filter comprising polyphenylene sulfide and acrylic fiber

2006-09-13

2009-02-03

Torres-Velazquez, Norca L (Department: 1794)

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Nonwoven fabric

Containing at least two chemically different strand or fiber...

C442S402000, C442S408000, C442S414000, C428S902000, C428S920000, C428S921000, C055S361000

Reexamination Certificate

active

07485592

ABSTRACT:
This invention relates to a bag filter having a tubular section, one closed end and one open end, the tubular section having a nonwoven felt comprising an intimate fiber blend of 50 to 80 parts by weight polyphenylene sulfide fiber and 20 to 50 parts by weight acrylic fiber, based on the total weight of polyphenylene sulfide and acrylic fibers in the felt, wherein the acrylic fiber has an equal or lower denier per filament than the polyphenylene sulfide fiber.

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