Selectively permeable barriers
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United States of America Patent
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-
Sep 15, 1992
Issued Date -
N/A
app pub date -
Mar 29, 1991
filing date -
May 4, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Apparatus and process for separating a fluid mixture into less permeable and more permeable fractions employing novel selectively permeable barriers comprised of a porous, emulsion treated substrate and a non-porous selectively permeable barrier layer thereon.
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