Process for the production of an ion exchange membrane

Details Process for the production of an ion exchange membrane Process for the production of an ion exchange membrane

1977-07-15

1979-09-11

Thurlow, Jeffery R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Ion-exchange polymer or process of preparing

264122, 264126, 264340, C08J 522

Patent

active

041675517

ABSTRACT:
This invention relates to a process for the production of a heterogeneous ion exchange membrane having a high ion transport number in the presence of a high ion concentration, which comprises mixing a finely powdered ion exchange material with a crystalline polyolefin resin, forming the resultant mixture into a membrane-shaped article and treating the membrane-shaped article with an aqueous solution of at least one salt selected from alkali metal salts and ammonium salts, having a concentration of from 17% by weight to saturation, at a temperature of at least 80.degree. C. for at least 10 minutes.

REFERENCES:
patent: 3133889 (1964-05-01), Hazenberg et al.
patent: 3276991 (1966-10-01), Hani et al.
patent: 3453354 (1969-07-01), Tejeda et al.
patent: 3509078 (1970-04-01), Roubineck et al.
patent: 3876565 (1975-04-01), Takashima et al.

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