Porous membrane formed from interpenetrating polymer network having hydrophilic surface
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United States of America Patent
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Oct 27, 1992
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N/A
app pub date -
Sep 6, 1991
filing date -
Nov 30, 1989
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Abstract
A porous membrane is formed from an interpenetrating polymer network of a hydrophobic polymer and a polymerized and crosslinked hydrophilic monomeric composition. A solution of the polymer and monomeric composition is cast, exposed to ultraviolet radiation, coagulated and dried. The resulting dried membrane is annealed in order to render its surface hydrophilic.
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