Dynamically formed membranes

Details Dynamically formed membranes Dynamically formed membranes

1983-11-22

1987-04-21

Spear, Frank

Liquid purification or separation

Processes

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

210639, B01D 1300

Patent

active

046594744

ABSTRACT:
Dynamic membranes are obtained by coating on a porous polymeric substrate containing functional groups a chemically reactive hydrophilic polymer from a dilute aqueous solution under pressure and crosslinking said polymer present on the porous substrate as thin layer with low molecular polyfunctional compounds. The new membranes show good solvent and compaction resistance and resistance to separation of the individual layers. They can be used in ultrafiltration and reverse osmosis processes.

REFERENCES:
patent: 4163714 (1979-08-01), Gregor
patent: 4214020 (1980-07-01), Ward et al.
patent: 4265745 (1981-05-01), Kawaguchi et al.
patent: 4473475 (1984-09-01), Barnes, Jr. et al.

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