Title:
COMPOSITE SEMIPERMEABLE MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2022/225062
Kind Code:
A1
Abstract:
The present invention relates to a composite semipermeable membrane comprising a supporting film and a separation function layer provided on the supporting film, wherein the separation function layer has a plurality of protrusions formed in a thin film, and in any 10 cross-sections of at least one part of the plurality of protrusions, the cross-sections being 2.0 μm long in the film surface direction of the supporting film, the ratio (Wa/Wb) of the maximum width Wa of the protrusions to the root width Wb of the protrusions is greater than 1.3.
Inventors:
AMANO YUTA (JP)
TABAYASHI SHUNSUKE (JP)
OKANISHI RYOSUKE (JP)
YOSHINO TAKASHI (JP)
SASAKI TAKAO (JP)
MINEHARA HIROKI (JP)
HIGASHI MASAKI (JP)
TABAYASHI SHUNSUKE (JP)
OKANISHI RYOSUKE (JP)
YOSHINO TAKASHI (JP)
SASAKI TAKAO (JP)
MINEHARA HIROKI (JP)
HIGASHI MASAKI (JP)
Application Number:
PCT/JP2022/018639
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 | |||
| JP2021072382A | 2021-05-06 |
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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