Uniform minimum-permeability woven fabric, filter, and process t

Details Uniform minimum-permeability woven fabric, filter, and process t Uniform minimum-permeability woven fabric, filter, and process t

1984-08-10

1985-09-24

Hart, Charles

Gas separation

Flexible or collapsible bag type

With securing or supporting means

55523, 55527, 428225, 501 95, B01D 4600

Patent

active

045431132

ABSTRACT:
A high temperature stable woven fiber fabric has uniform minimum gas permeability of less than 2.0 L/M/cm.sup.2 and is capable of withstanding at least 10,000 cycles in a Bally.TM. Flexometer test without failure. An untreated fabric is subjectd to a sequential process which provides uniform permeability and greater flexiblity and acid resistance to the treated fabric. The treated fabric is particularly useful in high temperature applications such as filter elements and furnace curtains.

REFERENCES:
patent: 3808015 (1974-04-01), Seufort
patent: 3843561 (1974-10-01), Sobel
patent: 3884659 (1975-05-01), Ray
patent: 3953561 (1976-04-01), Shin
patent: 4047965 (1977-09-01), Karst et al.
patent: 4149863 (1979-04-01), Ballard
patent: 4240833 (1980-12-01), Myles
patent: 4259095 (1981-03-01), Johnson
patent: 4320074 (1982-03-01), Birchall et al.
patent: 4398931 (1983-08-01), Shevlin
patent: 4412854 (1983-11-01), Layden

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