HOLLOW FIBER MEMBRANE AND MANUFACTURING METHOD THEREFOR
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United States of America Patent
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Jul 4, 2024
app pub date -
Apr 28, 2022
filing date -
Apr 28, 2021
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Abstract
The present invention relates to a hollow fiber membrane in which the thickness L of a spherical structure layer is 60-500 μm (inclusive), the spherical structure layer has a first surface and a second surface, the average diameter Da1 of the spherical structure in a region Sa1 10 μm or less from the first surface and the average diameter db2 of the spherical structure in a region Sb2 10-20 μm from the second surface satisfy the relational expression Da1>db2, and the spherical structure satisfies certain parameters.
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