Hydrophilic sheet and process for producing the same
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United States of America Patent
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Feb 13, 2018
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app pub date -
Jul 24, 2013
filing date -
Jul 31, 2012
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Abstract
Provided is a hydrophilic fluororesin sheet having significantly improved properties such as filtering performance which includes primary fibers and secondary fibers having a smaller fiber diameter than a fiber diameter of the primary fibers, the secondary fibers crosslinking in each of the primary fibers and/or crosslinking between different primary fibers in such a manner that no knots are formed at crosslinking points, the primary fibers and the secondary fibers including fluororesin fibers including polytetrafluoroethylene [PTFE], wherein a surface of the sheet to which hydrophilization treatment has been applied.
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