Title:
SEPARATION MEMBRANE, SEPARATION MEMBRANE MODULE, SEPARATION DEVICE, SEPARATION MEMBRANE FORMATION COMPOSITION, PRODUCTION METHOD FOR COMPOSITE MEMBRANE FOR SEPARATION, AND CELLULOSE COMPOUND
Document Type and Number:
WIPO Patent Application WO/2019/044196
Kind Code:
A1
Abstract:
Provided are: a separation membrane which can simultaneously have a higher level of separation selectivity and permissivity even in use under high-pressure conditions; a separation membrane module and separation device using the separation membrane; a separation membrane formation composition which is suitable for formulation of the separation membrane; and a production method for a composite membrane for separation using the composition. The present invention also provides a cellulose compound suitable as a constituent material for the separation membrane. The cellulose compound has a Hansen solubility parameter in which the polar parameter δP and the hydrogen bonding parameter δH satisfy formulae δP>9.0 and δH<13.8. The separation membrane has a separation layer containing the cellulose compound. The separation membrane module and the separation device have the separation membrane. The separation membrane formation composition contains the cellulose compound, a polymer, and a solvent. The production method for a composite membrane for separation comprises applying the separation membrane formation composition to a porous support layer, and drying the composition.
Inventors:
IIZUKA YUSUKE (JP)
Application Number:
PCT/JP2018/026207
Publication Date:
March 07, 2019
Filing Date:
July 11, 2018
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
B01D71/12; B01D53/22; B01D67/00; B01D69/02; B01D69/10; B01D69/12; B01D71/82; C08B3/16; C08B11/193; C08B13/00
Domestic Patent References:
| WO2016136294A1 | 2016-09-01 |
Foreign References:
| JP2014014791A | 2014-01-30 | |||
| JPH02195882A | 1990-08-02 | |||
| JPH02129236A | 1990-05-17 | |||
| JP2011502049A | 2011-01-20 | |||
| JPS61129008A | 1986-06-17 | |||
| US20150165389A1 | 2015-06-18 |
Attorney, Agent or Firm:
NAKASHIMA Junko et al. (JP)
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