Title:
SEPARATION MEMBRANE AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2021/132397
Kind Code:
A1
Abstract:
The present invention provides a separation membrane which contains a cellulose ester, while having a plurality of voids in a cross-section that is parallel to the longitudinal direction and the membrane thickness direction of the membrane, wherein: the average depth D of the plurality of voids is from 0.7 to 20 μm; the average length L of the plurality of voids is 3 μm or more; and the average of the ratios of respective lengths l to respective depth d of the voids, namely (l/d)a is from 2 to 40.
Inventors:
TAKADA KOICHI (JP)
EIMURA HIROKI (JP)
OTSUKA MARINA (JP)
HANAKAWA MASAYUKI (JP)
EIMURA HIROKI (JP)
OTSUKA MARINA (JP)
HANAKAWA MASAYUKI (JP)
Application Number:
PCT/JP2020/048296
Publication Date:
July 01, 2021
Filing Date:
December 23, 2020
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
B01D71/14; B01D69/00; B01D69/02; B01D69/08; D01F2/00
Domestic Patent References:
| WO2016159333A1 | 2016-10-06 |
Foreign References:
| JP2019111476A | 2019-07-11 | |||
| JP2015518926A | 2015-07-06 | |||
| JP2015057522A | 2015-03-26 | |||
| JP2010100950A | 2010-05-06 | |||
| JP2004515664A | 2004-05-27 |
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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