Liquid purification or separation – Filter – Material
Patent
1990-01-09
1991-06-04
Spitzer, Robert
Liquid purification or separation
Filter
Material
55158, 21050038, 21050041, 264 41, B01D 5322, B01D 7168
Patent
active
050211609
ABSTRACT:
Microporous filtration membranes are provided which are useful for absorbing or adsorbing cationic atoms, molecules or particles from liquids or gases. The invention also concerns novel strongly acidic copolymer solutions capable of crosslinking, and a process for preparing such solutions and making strongly acidic or anionic charge modified microporous filtration membranes therefrom. The copolymer of the solutions is synthesized from 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS) and either N-(isobutoxymethyl)acrylamide (IBMA) or 2-hydroxyethyl methacrylate (HEMA).
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Gelman Sciences Inc.
Spitzer Robert
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