Title:
ANION EXCHANGE MEMBRANE AND MANUFACTURING METHOD FOR SAME
Document Type and Number:
WIPO Patent Application WO/2023/032776
Kind Code:
A1
Abstract:
Provided is an anion exchange membrane that has low electrical resistance when performing electrodialysis and has excellent selective permeability for monovalent anions, without an increase in manufacturing costs. Also provided is a manufacturing method therefor. An anion exchange membrane that has a third amino group and a fourth ammonium group as functional groups is used, said membrane having a intensity ratio of the third amino group to the fourth ammonium group of at least 1.0 when using X-ray photoelectron spectroscopy to measure the anion exchange membrane surface that has the third amino group and the fourth ammonium group as the functional groups.
Inventors:
MIZUGUCHI KAZUO (JP)
OHMURA NOBUHIKO (JP)
KISHINO MASAYUKI (JP)
NAKATANI MICHIHITO (JP)
OHMURA NOBUHIKO (JP)
KISHINO MASAYUKI (JP)
NAKATANI MICHIHITO (JP)
Application Number:
PCT/JP2022/031828
Publication Date:
March 09, 2023
Filing Date:
August 24, 2022
Export Citation:
Assignee:
ASTOM CORP (JP)
TOKUYAMA CORP (JP)
TOKUYAMA CORP (JP)
International Classes:
B01J41/14; B01D61/46; B01D71/82; B01J47/12; C08J5/22
Foreign References:
| JP2009173898A | 2009-08-06 | |||
| JP2019098299A | 2019-06-24 | |||
| JP2009143975A | 2009-07-02 | |||
| JPH0275352A | 1990-03-15 | |||
| JPS4834999B1 | 1973-10-25 | |||
| JPH03115439A | 1991-05-16 | |||
| JPS62205153A | 1987-09-09 |
Attorney, Agent or Firm:
ONO, Hisazumi et al. (JP)
Download PDF: