Title:
COMPOSITE FILM AND COMPOSITE FILM MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/049623
Kind Code:
A1
Abstract:
This composite film is provided with: a supporting film containing a polyphenylene oxide; and a separation layer provided on one of the principal surfaces of the supporting film, wherein, in said one principal surface of the supporting film, the polyphenylene oxide is sulfonated, and the separation layer is formed of a polyvinyl alcohol having an ionic functional group.
Inventors:
OHKAME TAKASHI (JP)
SHIBUYA MASAFUMI (JP)
SHIBUYA MASAFUMI (JP)
Application Number:
PCT/JP2020/034487
Publication Date:
March 18, 2021
Filing Date:
September 11, 2020
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
B01D69/10; B01D69/12; B01D71/38; B01D71/52; B01D71/82; B32B27/00; B32B27/30; C08J9/36
Domestic Patent References:
| WO2010119858A1 | 2010-10-21 | |||
| WO2014054346A1 | 2014-04-10 | |||
| WO2017064936A1 | 2017-04-20 |
Foreign References:
| JPH0214725A | 1990-01-18 | |||
| JP2018058040A | 2018-04-12 |
Other References:
G. DECHER, SCIENCE, vol. 277, 1997, pages 1232 - 1237
See also references of EP 4029595A4
See also references of EP 4029595A4
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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