Membranes and processes for their manufacture and use
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United States of America Patent
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Jul 31, 2012
Grant Date -
May 27, 2010
app pub date -
May 26, 2008
filing date -
May 24, 2007
priority date (Note) -
Expired
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Abstract
A process for preparing a membrane comprising the steps of providing a composition comprising a polymerizable compound having at least 25 oxyethylene groups and at least two non-substituted vinyl groups, applying the composition to a support thereby forming a continuous layer on the support, and polymerizing the composition thereby forming a non-porous polymer film. Also claimed are the resultant membranes and their uses, e.g. for separating polar and non-polar gases.
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