Hydrophobic membranes

Details Hydrophobic membranes Hydrophobic membranes

1989-05-15

1990-09-04

Foelak, Morton

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

521 53, 521134, 521137, 521138, 525276, 525426, 525445, 525455, 525535, B01D 2504

Patent

active

049542567

ABSTRACT:
A hydrophobic polymeric microporous membrane having a CWST of less than about 28 dynes/cm is obtained by forming a (co)polymer of a fluorine-containing ethylenically unsaturated monomer that is permanently chemically bonded to a microporous membrane substrate.

REFERENCES:
patent: 2956899 (1960-10-01), Cline et al.
patent: 3188228 (1965-06-01), Magat et al.
patent: 3268622 (1966-08-01), Stanton et al.
patent: 3412175 (1968-11-01), Magat et al.
patent: 3565780 (1971-02-01), Zimmerman
patent: 4385130 (1983-05-01), Molinski et al.
patent: 4481306 (1984-11-01), Markus et al.
patent: 4602045 (1986-07-01), Markus et al.

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