P-xylylenediamide/diimide composite RO membranes

Details P-xylylenediamide/diimide composite RO membranes P-xylylenediamide/diimide composite RO membranes

1989-03-06

1990-12-18

Sever, Frank

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

21050039, 21050041, B01D 6900

Patent

active

049784552

ABSTRACT:
Composite RO membranes having good resistance to halogen attack and high fluxes are disclosed, the composite membranes comprising a microporous polymeric support with an interfacially polymerized salt-rejecting layer thereon comprising an aromatic aliphatic diamide/diimide.

REFERENCES:
patent: 4355116 (1982-10-01), Lee et al.
patent: 4853122 (1989-08-01), McCray

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