Gas separation: processes – Electric or electrostatic field
Patent
1994-07-13
1995-05-02
Chiesa, Richard L.
Gas separation: processes
Electric or electrostatic field
55527, 55528, 55DIG39, 95 78, 96 15, 96 66, 307400, B03C 360
Patent
active
054115760
ABSTRACT:
An oily mist resistant electret filter media is provided. The filter media includes polypropylene electret fibers and a melt processable fluorochemical additive. The additive has a melt temperature of at least 25.degree. C. and a molecular weight of about 500 to 2500. Also provided is a method for filtering particulate material from air containing oily aerosol particles.
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Jones Marvin E.
Rousseau Alan D.
Chiesa Richard L.
Griswold Gary L.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Truesdale Carole
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