Production of composite membranes

Details Production of composite membranes Production of composite membranes

1984-07-30

1985-05-28

Foelak, Morton

Coating processes

Foraminous product produced

Filter, sponge, or foam

2105002, 210654, 427246, 427340, 521 53, 521 62, 521 65, 521189, 521 57, 521 58, B05D 500

Patent

active

045200440

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), Cadott
patent: 4277344 (1981-07-01), Cadotte

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