Novel method of producing ion exchange membrane

Details Novel method of producing ion exchange membrane Novel method of producing ion exchange membrane

1981-09-14

1983-04-05

Newsome, John H.

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Web or sheet containing structurally defined element or...

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427 35, B05D 306

Patent

active

043792006

ABSTRACT:
A method of producing an ion exchange membrane comprising irradiating a polyethylene film not more than 150 .mu.m thick with ionizing radiation for a total dose of 1-30 Mrads in vacuum or in an inert gas, bringing the irradiated film into contact with a 15 to 50 wt % aqueous solution of acrylic acid and/or methacrylic acid at 15.degree. to 50.degree. C. to have acrylic acid and/or methacrylic acid graft copolymerized onto polyethylene, followed by treatment of the graft copolymer with a 2 to 10 wt % aqueous solution of potassium hydroxide.

REFERENCES:
patent: 3088791 (1963-05-01), Cline et al.
patent: 3188165 (1965-06-01), Magat et al.
patent: 3322661 (1967-05-01), Yoshikawa et al.
patent: 3427206 (1969-02-01), Scardaville et al.
patent: 3955014 (1976-05-01), Mostev et al.

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