Interfacially synthesized reverse osmosis membrane

Details Interfacially synthesized reverse osmosis membrane Interfacially synthesized reverse osmosis membrane

1986-07-30

1988-08-02

Sever, Frank

Liquid purification or separation

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Material

210420, 210475, E01D 1300

Patent

active

047612347

ABSTRACT:
A semipermeable composite membrane comprising a microporous substrate and an ultra-thin membrane with which the substrate is coated, characterized in that the ultra-thin membrane is composed of a cross-linked aromatic polyamide and the cross-linked aromatic polyamide contains a tri- or higher functional aryl residue having at least two --NH groups. The semipermeable composite membrane has a high solute rejection, high and stable water flux and durability, and thereby may be applicable to various fields.

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