Reverse osmosis membranes of polyamideurethane

Details Reverse osmosis membranes of polyamideurethane Reverse osmosis membranes of polyamideurethane

B - Operations, Transporting

01

D

B01D 71/58 (2006.01) B01D 61/02 (2006.01) B01D 69/10 (2006.01) B01D 69/12 (2006.01) B01D 71/54 (2006.01) B01D 71/56 (2006.01) C07C 68/02 (2006.01) C07C 69/96 (2006.01) C08G 71/00 (2006.01)

Patent

CA 2050169

The present invention is directed to an improved reverse osmosis membrane that shows surprisingly improved solute rejection and permeation properties. The membrane includes a separating layer of a polyamideurethane formed in situ by reaction of a haloformyloxy-substituted acyl halide with a diamine-treated substrate.

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