Title:
GAS SEPARATION MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2018/151175
Kind Code:
A1
Abstract:
A gas separation membrane that comprises a porous support and a gas separation active layer formed on the porous support, wherein: the gas separation active layer contains a gas separation polymer; the gas separation polymer is a polysaccharide containing at least one kind of functional group selected from among an amino group, a pyridyl group, a group having an imidazole skeleton, a group having an indole skeleton, an amide group and a sulfonamide group; and the crystallinity of the gas separation polymer, said crystallinity being represented by the formula: crystallinity(%)=[Ic/(Ic+Ia)]×100 {wherein Ic stands for the sum of the integrals of the scattering intensities of crystalline peaks obtained from X-ray diffraction analysis of the gas separation membrane, and Ia stands for the sum of the integrals of the scattering intensities of the amorphous halo}, is 18-46% inclusive.
Inventors:
KURISHITA YASUTAKA (JP)
MIKAWA MASATO (JP)
KUROKI RYO (JP)
OHASHI HITOMI (JP)
MIKAWA MASATO (JP)
KUROKI RYO (JP)
OHASHI HITOMI (JP)
Application Number:
PCT/JP2018/005134
Publication Date:
August 23, 2018
Filing Date:
February 14, 2018
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
B01D71/08; B01D53/22; B01D69/02; B01D69/10; B01D69/12
Domestic Patent References:
| WO2016194711A1 | 2016-12-08 | |||
| WO2017026456A1 | 2017-02-16 |
Foreign References:
| US20040215045A1 | 2004-10-28 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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