Title:
POSITIVE ION EXCHANGE MEMBRANE, ELECTROLYTIC BATH, AND POSITIVE ION EXCHANGE MEMBRANE PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2020/100684
Kind Code:
A1
Abstract:
This positive ion exchange membrane comprises a layer (I) containing a repeating unit (A) represented by formula (1) and a repeating unit (S) having a sulfonic acid type ion exchange group, the mass ratio of the repeating unit (A) being 53% to 70% by mass relative to the total mass ratio 100% by mass of the repeating unit (A) and the repeating unit (S), and a layer (II) having a fluorine-containing polymer containing a carboxylic acid type ion exchange group and being disposed over the layer (I), the water content of the layer (I) being 26% to 35%.
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Inventors:
NAKAGAWA KENJI (JP)
MORISHITA MASATSUGU (JP)
KURITA HIDEAKI (JP)
MORISHITA MASATSUGU (JP)
KURITA HIDEAKI (JP)
Application Number:
PCT/JP2019/043477
Publication Date:
May 22, 2020
Filing Date:
November 06, 2019
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
B32B27/30; C08J5/22; C25B13/08
Domestic Patent References:
| WO2016072506A1 | 2016-05-12 | |||
| WO2002103083A1 | 2002-12-27 | |||
| WO2016186085A1 | 2016-11-24 |
Foreign References:
| JP2013163860A | 2013-08-22 | |||
| JPH0598486A | 1993-04-20 | |||
| JP2001323084A | 2001-11-20 | |||
| CN102336043A | 2012-02-01 | |||
| JP2000243135A | 2000-09-08 | |||
| JP2001323084A | 2001-11-20 | |||
| JP2004279112A | 2004-10-07 | |||
| JP2018212504A |
Other References:
See also references of EP 3882025A4
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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