Anisotropic polyvinyl formal resin microporous membrane and its

Liquid purification or separation – Filter – Material

Patent

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210 23F, 264 41, 264 468, 264216, B01D 3100, B01D 3916, B29D 2704

Patent

active

039882454

ABSTRACT:
A microporous membrane having a thin surface skin and a cellular body is described. The membrane is effective for separating soluble oils, proteins and other substances having large molecular weights from water or other carriers by means of the ultrafiltration process or for removing salts from liquids by means of the electrodialysis process.

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fitzhugh, Andrew F.; Edward Lavin and George O. Morrison, "The Manufacture, Properties, and Uses of Polyvinyl Formal", in the Journal of the Electrochemical Society, Aug. 1953, pp. 350-355.
Amicon Corp. Advertising Brochure: "Diaflo Ultrafilters", Diaflo Hollow Fibers.
Michaels, A. S. "New Separation Technique for the CPI", in Chemical Engineering Progress, vol. 64, No. 12, Dec. 1968, pp. 31-43.
Encyclopedia of Polymer Science and Technology, vol. 14, Section: "Poly(Vinyl/acetals)", New York, Interscience, c 1971, pp. 208-239.

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