Ultrafiltration membranes and methods of making
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United States of America Patent
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Apr 21, 2015
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app pub date -
Feb 25, 2014
filing date -
Jun 25, 2004
priority date (Note) -
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Abstract
The present invention is an integral multilayered composite membrane having at least one ultrafiltration layer made by cocasting or sequentially casting a plurality of polymer solutions onto a support to form a multilayered liquid sheet and immersing the sheet into a liquid coagulation bath to effect phase separation and form a multilayered composite membrane having at least one ultrafiltration layer.
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