Title:
SEMIPERMEABLE COMPOSITE MEMBRANE, METHOD FOR PRODUCING SAME AND SEMIPERMEABLE COMPOSITE MEMBRANE ELEMENT
Document Type and Number:
WIPO Patent Application WO/2019/235441
Kind Code:
A1
Abstract:
The present invention provides: a semipermeable composite membrane which is reduced in burden on the environment; and a method for producing this semipermeable composite membrane. A semipermeable composite membrane 100 according to the present invention is obtained by providing a semipermeable membrane 104, which contains a crosslinked polyamide 120 and cellulose nanofibers 110, on a porous supporting body 102. A method for producing a semipermeable composite membrane according to the present invention comprises: a step for obtaining a mixed liquid that contains cellulose nanofibers 110, water and an amine component; and a step for obtaining a semipermeable composite membrane 100 by bringing the mixed liquid into contact with a porous supporting body 102 and subsequently causing a crosslinking reaction of the amine component in the mixed liquid that adheres to the porous supporting body 102.
Inventors:
ENDO MORINOBU (JP)
NOGUCHI TORU (JP)
YAMADA HIROYUKI (JP)
NOGUCHI TORU (JP)
YAMADA HIROYUKI (JP)
Application Number:
PCT/JP2019/022036
Publication Date:
December 12, 2019
Filing Date:
June 03, 2019
Export Citation:
Assignee:
UNIV SHINSHU (JP)
TORAY INDUSTRIES (JP)
TORAY INDUSTRIES (JP)
International Classes:
B01D71/56; B01D69/00; B01D69/02; B01D69/10; B01D69/12; B01D71/10; B32B5/24
Domestic Patent References:
| WO2018056090A1 | 2018-03-29 | |||
| WO2016136294A1 | 2016-09-01 |
Foreign References:
| CN105771694A | 2016-07-20 | |||
| JP2018051498A | 2018-04-05 | |||
| JP2016145270A | 2016-08-12 |
Other References:
WANG, XIAO ET AL.: "Nanofiltration membranes prepared by interfacial polymerization on thin-film nanofibrous composite scaffold", POLYMER, vol. 55, no. 6, 24 March 2014 (2014-03-24), pages 1358 - 1366, XP028630344, DOI: 10.1016/j.polymer.2013.12.007
Attorney, Agent or Firm:
OFUCHI, Michie et al. (JP)
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