Title:
COMPOSITE SEMIPERMEABLE MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2022/225063
Kind Code:
A1
Abstract:
The present invention relates to a composite semipermeable membrane that is provided with a supporting film and a separation function layer disposed on the supporting film. The separation function layer contains a thin film, and this thin film forms a pleated structure having a plurality of protrusions. The actual length L of the thin film, per 1 µm of length of the supporting film, in the cross-sectional direction of the direction perpendicular to the membrane surface, is at least 3.0 µm, and the thickness of the thin film in the protrusions is at least 15 nm.
Inventors:
TABAYASHI SHUNSUKE (JP)
OKANISHI RYOSUKE (JP)
AMANO YUTA (JP)
YOSHINO TAKASHI (JP)
SASAKI TAKAO (JP)
MINEHARA HIROKI (JP)
HIGASHI MASAKI (JP)
OKANISHI RYOSUKE (JP)
AMANO YUTA (JP)
YOSHINO TAKASHI (JP)
SASAKI TAKAO (JP)
MINEHARA HIROKI (JP)
HIGASHI MASAKI (JP)
Application Number:
PCT/JP2022/018640
Publication Date:
October 27, 2022
Filing Date:
April 22, 2022
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
B01D69/00; B01D69/10; B01D69/12
Domestic Patent References:
| WO2010120326A1 | 2010-10-21 |
Foreign References:
| JP2008517737A | 2008-05-29 | |||
| JP2019177342A | 2019-10-17 | |||
| JP2018069160A | 2018-05-10 | |||
| JP2014521499A | 2014-08-28 | |||
| JP2021072383A | 2021-05-06 |
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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