HOLLOW POROUS MEMBRANE
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United States of America Patent
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Oct 8, 2015
app pub date -
Jun 27, 2013
filing date -
Jun 29, 2012
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Abstract
The present invention relates to a hollow porous membrane comprising a porous membrane layer and a support, wherein the porous membrane layer is composed of a thermoplastic resin and the support is a support obtained by processing a yarn having a stretch elongation rate of 1.0% or less into a tubular shape. According to the present invention, it is possible to provide a hollow porous membrane capable of maintaining sufficient physical strength and favorable water permeability despite its small outer diameter value.
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