Title:
SEPARATION MEMBRANE AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/230923
Kind Code:
A1
Abstract:
The present invention uses poly(4-methyl-1-pentene), which is excellent in chemical resistance and gas permeability, to provide a separation membrane having high strength and low leakage while maintaining high gas permeability. Provided is a separation membrane having poly(4-methyl-1-pentene) as a main component. The poly(4-methyl-1-pentene) in the separation membrane has a rigid amorphous fraction RA of 43-60%, inclusive, the separation membrane having a porosity of 30-70%, inclusive, and a dense layer on at least one surface.
Inventors:
TAGUCHI MARINA (JP)
HANAKAWA MASAYUKI (JP)
YAMAMURA GOHEI (JP)
TAKADA KOICHI (JP)
EIMURA HIROKI (JP)
AOYAMA SHIGERU (JP)
AKUTSU MIKU (JP)
HANAKAWA MASAYUKI (JP)
YAMAMURA GOHEI (JP)
TAKADA KOICHI (JP)
EIMURA HIROKI (JP)
AOYAMA SHIGERU (JP)
AKUTSU MIKU (JP)
Application Number:
PCT/JP2022/019036
Publication Date:
November 03, 2022
Filing Date:
April 27, 2022
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
B01D71/26; B01D53/22; B01D69/02; B01D69/08; C08J9/00; D01F6/04
Domestic Patent References:
| WO2019124189A1 | 2019-06-27 | |||
| WO2003061812A2 | 2003-07-31 |
Foreign References:
| US6409921B1 | 2002-06-25 | |||
| CN112535956A | 2021-03-23 | |||
| JP2015030935A | 2015-02-16 | |||
| JPH07155569A | 1995-06-20 |
Other References:
GREGORY R., IND.ENG.CHEM.RES., vol. 50, 2011, pages 3798 - 3817
CHARLES HANSEN ET AL., HANSEN SOLUBILITY PARAMETER IN PRACTICE
CHARLES HANSEN ET AL., HANSEN SOLUBILITY PARAMETER IN PRACTICE
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