Microporous support layer with interfacially polymerized copolya

Details Microporous support layer with interfacially polymerized copolya Microporous support layer with interfacially polymerized copolya

1986-04-23

1986-12-02

Van Balen, William J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

21050038, 210654, 428420, B32B 326

Patent

active

046264680

ABSTRACT:
Composite reverse osmosis membranes are disclosed wherein a microporous support layer has superposed thereon an interfacially polymerized aromatic copolyamide. The aromatic copolyamide is derived from meta-phenylene diamine and, based on polymerized acid chloride present, 10 to 80% by weight repeating units derived from trimesoyl chloride, from 90 to 15% by weight repeating units derived from cyclohexane-1,3,5-tricarbonyl chloride and up to 40% by weight, repeating units derived from isophthaloyl chloride, terephthaloyl chloride or mixtures thereof. The membranes exhibit improved flux over similar membranes based on trimesoyl chloride while retaining similar salt rejection ability. The membranes containing the diacids exhibit improved flux over similar membranes based on the two triacid chlorides while retaining similar salt rejection ability.

REFERENCES:
patent: 3567632 (1971-03-01), Richter et al.
patent: 3649687 (1972-03-01), Weyland et al.
patent: 3744642 (1973-07-01), Scala et al.
patent: 4277344 (1981-07-01), Cadotte
patent: 4353802 (1982-10-01), Hara et al.
patent: 4520044 (1985-05-01), Sundet
patent: 4529646 (1985-07-01), Sundet

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