Production of composite membranes

Details Production of composite membranes Production of composite membranes

1984-10-31

1985-07-16

Foelak, Morton

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

2105002, 210654, 427246, 427340, 428419, 521 53, 521 57, 521 58, 521 62, 521 64, 521189, B32B 326

Patent

active

045296464

ABSTRACT:
A process is disclosed for producing a composite reverse osmosis membrane. The process involves forming a porous polysulfone membrane from a solution of polysulfone followed by quenching the polysulfone membrane in an aqueous solution of m-phenylenediamine followed by reacting the m-phenylenediamine on the polysulfone membrane with either trimesoyl chloride or cyclohexane-1,3,5-tricarbonyl chloride in a water immiscible solution thereof.

REFERENCES:
patent: 3926798 (1975-12-01), Cadotte
patent: 4039440 (1977-08-01), Cadotte
patent: 4277344 (1981-07-01), Cadotte

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