Blended, polymeric, matrix membrane and process of making and us

Details Blended, polymeric, matrix membrane and process of making and us Blended, polymeric, matrix membrane and process of making and us

1980-11-14

1983-03-22

Spear, Jr., Frank A.

Liquid purification or separation

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Material

264 41, 521 27, B01D 3100

Patent

active

043774814

ABSTRACT:
A blended, polymeric membrane which comprises a water-insoluble matrix polymer and a water-insoluble copolymer compatible and blended with the matrix polymer, which copolymer is prepared by a copolymerization of a first monomer which, when homopolymerized, would result in an incompatible homopolymer with the matrix, and a second monomer which, when homopolymerized, would result in a compatible homopolymer with the matrix, one or both of the monomers containing positive or negative functional groups, to provide a blended, compatible, water-insoluble membrane for use in a reverse-osmosis and ultrafiltration processes.

REFERENCES:
patent: 3083118 (1963-03-01), Bridgeford
patent: 3546142 (1970-12-01), Michaels
patent: 3615024 (1971-10-01), Michaels
patent: 3642668 (1972-02-01), Bailey et al.

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