Microporous peek membranes and the preparation thereof

Details Microporous peek membranes and the preparation thereof Microporous peek membranes and the preparation thereof

C - Chemistry, Metallurgy

08

J

18/24, 18/786

C08J 9/28 (2006.01) B01D 71/52 (2006.01) B29C 47/00 (2006.01) D01D 5/24 (2006.01)

Patent

CA 2000458

ABSTRACT Microporous polyetheretherketone (PEEK) membranes and hollow fibers are formed without sulfonating the PEEK polymer. A method of making membranes, fibers and articles from solutions of PEEK in non-sulfonating acid solvents is claimed. Solvents include methane sulfonic acid and trifluoromethane sulfonic acid. Sulfuric acid may be used as a diluent in non-sulfonating amounts. PEEK membranes are used as supports for composite ultrafiltration and reverse osmosis membranes. 36,274-F

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