Patent ID: 9527973
Filing Date: 2016-12-27
CPC Classification: B01D,B05D,C02F,C08F,C08J

Claim Text:
1. A process for preparing a membrane comprising applying a curable composition to a porous support and curing the curable composition, wherein the curable composition comprises: a) a curable ionic compound; b) a first crosslinking agent comprising at least two acrylate groups or at least two acrylamide groups; c) a second crosslinking agent comprising at least two acrylic groups; d) an inert solvent; and e) optionally a free radical initiator; wherein (i) the melting point of the first crosslinking agent is 80° C., below 80° C., or above 80° C.; (ii) the second crosslinking agent has a melting point below 80° C.; (iii) the second crosslinking agent is not the same as the first crosslinking agent; (iv) the curable composition comprises 3 to 35 wt % of the first crosslinking agent and 2 to 25 wt % of the second crosslinking agent; and (v) the total amount of crosslinking agents is at least 17 wt %; wherein the amounts are based on the total weight of the curable composition.