Title:
COMPOSITE SEMIPERMEABLE MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2022/225061
Kind Code:
A1
Abstract:
The present invention relates to a composite semipermeable membrane comprising a support membrane and a separation function layer provided on the support membrane, wherein the separation function layer includes a thin membrane. The thin membrane forms a fold structure including a plurality of protrusions with a height of 10 nm or more. A ratio (T100/T25) of a thickness T25 of the thin membrane in a region corresponding to 0 to 25% of the height of the protrusions and a thickness T100 of the thin membrane in a region corresponding to 50 to 100% of the height of the protrusions is less than 0.95.
Inventors:
OKANISHI RYOSUKE (JP)
TABAYASHI SHUNSUKE (JP)
AMANO YUTA (JP)
SASAKI TAKAO (JP)
HIGASHI MASAKI (JP)
YOSHINO TAKASHI (JP)
MINEHARA HIROKI (JP)
TANAKA HIROAKI (JP)
TABAYASHI SHUNSUKE (JP)
AMANO YUTA (JP)
SASAKI TAKAO (JP)
HIGASHI MASAKI (JP)
YOSHINO TAKASHI (JP)
MINEHARA HIROKI (JP)
TANAKA HIROAKI (JP)
Application Number:
PCT/JP2022/018638
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 | |||
| JP2021072381A | 2021-05-06 |
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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