Hydrophilic membrane for use in ultrafiltration or...

Details Hydrophilic membrane for use in ultrafiltration or... Hydrophilic membrane for use in ultrafiltration or...

C - Chemistry, Metallurgy

08

J

182/13, 117/88.5

C08J 5/22 (2006.01) B01D 61/02 (2006.01) B01D 67/00 (2006.01) B01D 69/10 (2006.01) B01D 69/12 (2006.01) C08J 7/04 (2006.01)

Patent

CA 2024575

ABSTRACT HYDROPHILIC MEMBRANE FOR USE IN ULTRAFILTRATION OR MICROFILTRATION AND METHOD OF PREPARATION A permeable, porous synthetic membrane with hydrophilic character for use in ultrafiltration or microfiltration. The hydrophilic character of the membrane is obtained by applying an aqueous solution comprising one or more polymers of a molecular weight of between 50,000 and 2000,000 and comprising at least two functional hydroxy and/or amino groups, and one or more monomers comprising at least two functional hydroxy and/or amino groups, said aqueous solution having a pH- value of at least 10, followed by removal of excess solution and fixation by applying an isocyanate crosslinking agent dissolved in an organic solvent immiscible with water. 38,820-F

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