Chlorine-stable membrane compositions

Details Chlorine-stable membrane compositions Chlorine-stable membrane compositions

1984-12-06

1990-07-17

Fisher, Richard V.

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

21050023, 21050027, 21050036, 21050042, 210506, B01D 1300, B01D 1301

Patent

active

049419722

ABSTRACT:
A novel reverse osmosis membrane comprising a hydroxyalkyl methacrylate film cross-linked with a vinylaralkyl dialkylsulfonium salt is described. This film, when cast on a compatible substrate, results in a membrane of exceptional chlorine resistance.

REFERENCES:
patent: 4478717 (1984-10-01), Kubihara et al.
Hawley, Gessner G., The Condensed Chemical Dictionary, Tenth Edition, Van Nostrand Reinhold Co., Inc., 1981, p. 122.

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