Oil-and water repellent gas-permeable filter

Details Oil-and water repellent gas-permeable filter Oil-and water repellent gas-permeable filter

1994-09-07

1995-10-31

Spitzer, Robert

Gas separation: apparatus

Apparatus for selective diffusion of gases

Plural layers

96 14, 55524, B01D 7136, B01D 6912

Patent

active

054625866

ABSTRACT:
An oil- and water-repellent filter which contains a porous filter material that has its internal and external surfaces coated with a compound formed by combining a fluoropolymer having a fluorine-containing aliphatic cyclic structure in the main chain and a fluoropolymer containing polyfluoroalkyl groups. The coating imparts superior oil- and water-repellency without impairment to the flow of air or other gases through the filter.

REFERENCES:
patent: 5105579 (1992-04-01), Fukazawa et al.
patent: 5116650 (1992-05-01), Bowser
patent: 5286279 (1994-09-01), Wu

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