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公开(公告)号:US20210106948A1
公开(公告)日:2021-04-15
申请号:US16498828
申请日:2018-03-26
Applicant: COWAY CO., LTD.
Inventor: Guk-Won LEE , Sang-Hyeon KANG , Sung-Min MOON , Jun-Young LEE
Abstract: The present invention relates to a bipolar ion exchange membrane and a production method therefor, and provides a bipolar ion exchange membrane comprising a first polar heterogeneous ion exchange membrane and a second polar homogeneous ion exchange membrane stacked on each other, wherein the first polar heterogeneous ion exchange membrane is formed of an ion exchange resin powder and a binder resin that contain a first polar ion exchange group, the second polar homogeneous ion exchange membrane is formed of a matrix resin containing a second polar ion exchange group, and an interface between the first polar heterogeneous ion exchange membrane and the second polar homogeneous ion exchange membrane is a heterogeneous interface.
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2.
公开(公告)号:US20180326356A1
公开(公告)日:2018-11-15
申请号:US15777455
申请日:2016-11-10
Applicant: COWAY CO., LTD.
Inventor: Sung-Min MOON , Jun-Young LEE , Guk-Won LEE , Sang-Hyeon KANG
CPC classification number: B01D61/54 , B01D61/445 , B01D61/48 , C02F1/46104 , C02F1/4695 , C02F2001/46128 , C02F2001/46152 , C02F2201/46135 , C02F2209/06 , C02F2303/22
Abstract: A deionization filter device includes a first electrode, a second electrode, at least one bipolar ion exchange sheet configured to include a cation exchange film and an anion exchange film, and disposed between the first electrode and the second electrode, a voltage source configured to apply a deionization voltage or a reproduction voltage between the first electrode and the second electrode, a pH sensor configured to detect a pH value of a solution to be treated by a voltage applied by the voltage source, and a controller configured to control the voltage source, depending on a pH value of the solution.
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