Filtration medium including substrate-supported porous membrane and method for the manufacture thereof
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United States of America Patent
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Oct 26, 1993
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N/A
app pub date -
Aug 28, 1992
filing date -
Aug 28, 1992
priority date (Note) -
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Abstract
A filtration medium especially useful in cross-flow type filtration systems comprising a length of porous strong substrate, preferably woven, and a thin porous membrane, such membrane being bonded to the strands of the substrate by islands of resin uniformly spaced apart and disposed generally between the substrate and the membrane. The islands of resin enhance the integrity of the composite during its use in a filtration system. A method and apparatus for the manufacture of the filtration medium is disclosed.
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