Title:
液状組成物の製造方法、触媒層形成用塗工液の製造方法および膜電極接合体の製造方法
Document Type and Number:
Japanese Patent JP6819595
Kind Code:
B2
Abstract:
To provide a process for producing a liquid composition capable of forming a polymer electrolyte membrane of which breakage at the time of drying is suppressed; a process for producing a catalyst layer-forming coating liquid capable of forming a catalyst layer of which breakage at the time of drying is suppressed; and a method for producing a membrane/electrode assembly by which a catalyst layer or a polymer electrolyte membrane of which breakage at the time of drying is suppressed, can be formed. A process for producing a liquid composition, which comprises holding a fluorinated polymer having -SO 2 F groups at from 110 to 130°C for at least 45 minutes; cooling the fluorinated polymer having -SO 2 F groups held at from 110 to 130°C to less than 110°C; converting the -SO 2 F groups in the fluorinated polymer having -SO 2 F groups cooled to less than 110°C to ion exchange groups thereby to obtain a fluorinated polymer having ion exchange groups; and mixing the fluorinated polymer having ion exchange groups and a liquid medium.
Inventors:
Hiroyuki Watanabe
Hirokazu Wakabayashi
Hirokazu Wakabayashi
Application Number:
JP2017538052A
Publication Date:
January 27, 2021
Filing Date:
August 30, 2016
Export Citation:
Assignee:
AGC Inc.
International Classes:
C08F8/00; C08F14/18; C08F216/14; C08L27/12; H01M4/88; H01M8/10; H01M8/1004; H01M8/1023; H01M8/1039
Domestic Patent References:
| JP2003292532A | ||||
| JP2010018674A | ||||
| JP2013181128A | ||||
| JP2008506834A |
Foreign References:
| WO2008062653A1 | ||||
| WO2013176185A1 | ||||
| WO2004066426A1 |
Attorney, Agent or Firm:
Sumio Tanai
Suzuki Mitsuyoshi
Noriko Yanai
Suzuki Mitsuyoshi
Noriko Yanai