Title:
SEPARATION MEMBRANE AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2024/014285
Kind Code:
A1
Abstract:
The present invention provides a new separation membrane that is suitable for separating an acidic gas from a gas mixture containing the acidic gas. A separation membrane 10 according to the present invention is provided with a separation function layer 1 and a porous support 2 that is in direct contact with the separation function layer 1. The separation function layer 1 and the porous support 2 each contain a polyimide. The polyimide includes a structural unit A1 derived from a tetracarboxylic dianhydride a1 that has an acid anhydride structure S having a six-membered ring. For example, the porous support 2 has continuous holes.
Inventors:
SAYAMA SHUNSUKE (JP)
YOSHIMURA KAZUYA (JP)
HINO RYOYA (JP)
YOSHIMURA KAZUYA (JP)
HINO RYOYA (JP)
Application Number:
PCT/JP2023/023867
Publication Date:
January 18, 2024
Filing Date:
June 27, 2023
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
B01D69/00; B01D53/22; B01D69/02; B01D69/10; B01D69/12; B01D71/64; C08G73/10; C08J9/26
Foreign References:
| JP2008086903A | 2008-04-17 | |||
| JP2020084155A | 2020-06-04 | |||
| JP2003236352A | 2003-08-26 | |||
| CN108043232A | 2018-05-18 | |||
| JP2002355938A | 2002-12-10 | |||
| JP2013530820A | 2013-08-01 | |||
| JP2014184424A | 2014-10-02 |
Attorney, Agent or Firm:
KAMADA Koichi et al. (JP)
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