Novel polymer membranes for reverse osmosis

Details Novel polymer membranes for reverse osmosis Novel polymer membranes for reverse osmosis

1974-07-25

1976-06-15

Phynes, Lucille M.

Liquid purification or separation

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Material

260 73R, 260 73L, 260 296B, 264 41, 264216, 526 9, 526266, B01D 3900, B01D 3914

Patent

active

039636186

ABSTRACT:
This case is directed to the preparation of polyvinyl acetal resins as semi-permeable membranes for use in the treatment of feed solutions by reverse osmosis, ultafiltration or related techinques.

REFERENCES:
patent: 2326048 (1943-08-01), McNally et al.
patent: 2387833 (1945-10-01), Dahle
patent: 2915504 (1959-12-01), Berardinelli
patent: 2981718 (1961-04-01), Heckmaier et al.
patent: 3170869 (1965-02-01), Imoto
patent: 3907675 (1975-09-01), Chapurlat et al.

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