CATION EXCHANGE MEMBRANE AND METHOD FOR PRODUCING SAME
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United States of America Patent
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Jun 1, 2023
app pub date -
Mar 8, 2021
filing date -
Mar 25, 2020
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Abstract
A cation-exchange membrane using a polyolefin-based substrate with reduced swelling of an ion-exchange resin and a low electrical resistance is provided. The cation-exchange membrane of the present invention includes a substrate made of polyolefin-based woven fabric, and a sulfonic acid group-containing cation-exchange resin. A portion of the cation-exchange membrane other than the substrate has 23 mass % or more to 35 mass % or less of polyvinyl chloride.
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