Curable compositions and membranes
AssigneeFujifilm Manufacturing Europe B.V.
InventorHarro Antheunis
Life of this patent
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Abstract
A method for preparing an ionically-charged membrane comprising the steps (1) applying a film of curable composition to a support; (2) curing the film of curable composition to give anionically-charged membrane; and (3) removing the ionically-charged membrane from the support; wherein the curable composition comprises a) 5 to 50 wt % of curable compound comprising one ethylenically unsaturated group and anionic group; b) 10 to 70 wt % of crosslinking agent comprising at least two ethylenically unsaturated groups and having a molecular weight of at least 500 dalton per ethylenically unsaturated group; and c) 5 to 60 wt % of inert solvent.
Claims17
A method for preparing an ionically-charged membrane comprising the steps:
- (1) applying a film of curable composition to a support;
- (2) curing the film of curable composition to give an ionically-charged membrane;
- and
- (3) removing the ionically-charged membrane from the support;
- wherein the curable composition comprises:
- a) 5 to 50 wt % of curable compound comprising one ethylenically unsaturated group and an ionic group;
- b) 10 to 70 wt % of crosslinking agent comprising at least two ethylenically unsaturated groups and having a molecular weight of at least 500 dalton per ethylenically unsaturated group;
- and
- c) 5 to 60 wt % of inert solvent.
A curable composition comprising:
- a) 5 to 50 wt % of curable compound comprising one ethylenically unsaturated group and an ionic group;
- b) 10 to 70 wt % of crosslinking agent comprising at least two acrylic groups and having a molecular weight of at least 500 dalton per ethylenically unsaturated group;
- and
- c) 5 to 60 wt % of inert solvent.
Dependencies are inferred from the claim text.