Method of making thin film composite membranes

Details Method of making thin film composite membranes Method of making thin film composite membranes

1993-04-16

1994-11-29

Beck, Shrive

Coating processes

Foraminous product produced

Filter, sponge, or foam

427348, 427353, 427245, B01D 6102

Patent

active

053688899

ABSTRACT:
A method of making a semipermeable composite membrane comprising a discriminating layer formed insitu by interfacial polymerization is disclosed. The method provides for removal of a water immiscible solvent for a reactant in the interfacial polymerization by physical means not requiring a phase change such as a water knife, air knife, roller, or rubber blade. Composite membranes having good flux, good salt rejection, and low levels of remaining organic solvent are obtained.

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