Process for Preparing Composite Membranes
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United States of America Patent
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Issued Date -
Jun 28, 2012
app pub date -
Aug 11, 2010
filing date -
Sep 1, 2009
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Abandoned
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Abstract
A process for preparing a composite membrane comprising acidic and/or basic groups comprising the following steps:
- (i) applying a curable composition to a support; and(ii) curing the composition to form a membrane;wherein the curable composition comprises:(a) 18 to 78 wt % crosslinking agent(s) having at least two acrylic groups;(b) 20 to 80 wt % curable compound(s) having one or more acidic or basic groups or groups which are convertible to acidic or basic groups;(c) 2 to 30 wt % solvent(s); and(d) 0 to 10 wt % photoinitiator(s).
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