Title:
MANUFACTURING METHOD FOR SEPARATION MEMBRANE, AND LAMINATE BODY
Document Type and Number:
WIPO Patent Application WO/2024/057853
Kind Code:
A1
Abstract:
The present invention provides a new manufacturing method suitable for fabricating a separation membrane comprising a separation functional layer that contains a polyimide. The manufacturing method according to the present invention is a manufacturing method for a separation membrane 10A comprising a separation functional layer 1 that contains a polyimide. This manufacturing method includes: a step I for forming a coating film 6 by coating a coating liquid L1 containing the material of the separation functional layer 1 onto a substrate 5 which has a melting point of at least 270°C; a step II for forming the separation functional layer 1 by drying the coating film 6; and a step III for peeling the separation functional layer 1 from the substrate 5. In step III, if a water droplet is dropped onto a surface 5a of the substrate 5 from which the separation functional layer 1 has been peeled, the measured contact angle of water is at least 70°.
Inventors:
YOSHIMURA KAZUYA (JP)
TANI KENSUKE (JP)
IHARA TERUKAZU (JP)
TANI KENSUKE (JP)
IHARA TERUKAZU (JP)
Application Number:
PCT/JP2023/030396
Publication Date:
March 21, 2024
Filing Date:
August 23, 2023
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
B01D71/64; B01D69/10; B01D69/12
Domestic Patent References:
| WO2014175011A1 | 2014-10-30 |
Foreign References:
| JP2015150474A | 2015-08-24 | |||
| CN108043232A | 2018-05-18 | |||
| JP2020084155A | 2020-06-04 |
Attorney, Agent or Firm:
KAMADA Koichi et al. (JP)
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