Semipermeable membrane support and process of preparation thereof
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United States of America Patent
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Jul 19, 2005
Grant Date -
May 16, 2002
app pub date -
Sep 20, 2001
filing date -
Sep 22, 2000
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Abstract
A semipermeable membrane support includes, a non-woven fabric including main fiber and binder fiber, both of which are formed of synthetic resin fine fiber, the non-woven fabric being manufactured by heating and pressing after paper making, wherein the semipermeable membrane support has a ratio of a tensile strength in a paper feeding direction to that in a width direction of 2:1 to 1:1.
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