Title:
GAS SEPARATION MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2018/131697
Kind Code:
A1
Abstract:
This gas separation membrane contains a polyimide which has a repeating unit represented by formula (1). This gas separation membrane has excellent gas separation performance in a separation temperature range of from 35°C to 70°C (inclusive), and exhibits particularly excellent separation performance for CO2 and CH4. Formula (1) (In formula (1), R1 represents a divalent organic group represented by formula (2).) Formula (2) (In formula (2), R2 represents a hydrogen atom, an alkyl group or a fluoroalkyl group; and a represents an integer of 1-2.)
Inventors:
EGUCHI HIROSHI (JP)
YAMANAKA KAZUHIRO (JP)
YAMANAKA KAZUHIRO (JP)
Application Number:
PCT/JP2018/000744
Publication Date:
July 19, 2018
Filing Date:
January 15, 2018
Export Citation:
Assignee:
CENTRAL GLASS CO LTD (JP)
International Classes:
B01D71/64; B01D53/22; C08G73/10
Foreign References:
| JP2016137484A | 2016-08-04 | |||
| JP2016175000A | 2016-10-06 | |||
| JP2004359860A | 2004-12-24 | |||
| JP2018001118A | 2018-01-11 |
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (JP)
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