Ion exchange membranes based upon polyphenylene sulfide and fluorocarbon polymeric binder
AssigneeIonics, Incorported
InventorRussell B. Hodgdon
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Abstract
The invention related to a heterogeneous cation exchange membrane comprised of particles of sulfonated polyphenylene sulfide polyelectrolyte in a fluorocarbon polymeric binder and to the method of making the same.
Claims8
A method for producing a heterogeneous cation exchange membrane having increased resistance to oxidation comprising preparing a batter mixture of a sulfonated polyphenylene sulfide polyelectrolyte and a fluorocarbon polymeric film forming binder, said binder being dissolved in an appropriate solvent, forming a thin film from said batter mixture and allowing the said solvent to evaporate therefrom to form a solid substantially unfractured membrane.
A heterogeneous cation exchange membrane comprising fine particles of a cross-linked, sulfonated polyphenylene sulfide polyelectrolyte dispersed essentially throughout a matrix of a thermoplastic fluorocarbon polymeric film forming binder.
Dependencies are inferred from the claim text.