Title:
フッ素系陽イオン交換膜の製造方法
Document Type and Number:
Japanese Patent JP6520721
Kind Code:
B2
Abstract:
To provide a method for producing a fluorinated cation exchange membrane, by which a fluorinated cation exchange membrane having a high effect to suppress attachment of the gas to the surface on the cathode side and having an excellent resistance to dropping of inorganic particles from a gas-releasing layer provided on the cathode side can be obtained.A method for producing a fluorinated cation exchange membrane 1 for electrolysis comprising, on at least the cathode side, a layer (α1) 12 containing a perfluorocarbon polymer (A) having carboxylic acid groups or precursor groups of carboxylic acid groups, and a gas-releasing layer (α2) 10 provided on the cathode side of the layer (α1) 12, which comprises applying to the surface of the layer (α1) 12 a coating liquid containing inorganic particles having an average secondary particle size of from 0.5 to 1.5 μm, a binder and a dispersion medium in a mass ratio of the binder to the total mass of the inorganic particles and the binder of from 0.15 to 0.3, to form the gas-releasing layer (α2) 10.
Inventors:
Hiromitsu Kusano
Takayuki Kaneko
Takayuki Kaneko
Application Number:
JP2015554844A
Publication Date:
May 29, 2019
Filing Date:
December 19, 2014
Export Citation:
Assignee:
AGC Inc.
International Classes:
C25B13/08; B01J39/05; B01J39/07; B01J39/20; B01J47/12; C08J5/22; C25B1/46; C25B13/02
Domestic Patent References:
| JP2013163858A | ||||
| JP2006152065A | ||||
| JP5009771A | ||||
| JP2013163860A | ||||
| JP2013163857A |
Attorney, Agent or Firm:
Sumio Tanai
Masatake Shiga
Suzuki Mitsuyoshi
Noriko Yanai
Masatake Shiga
Suzuki Mitsuyoshi
Noriko Yanai