Highly-selective polyimide membranes with increased permeance, said membranes consisting of block copolyimides
US10040036B2 · kind B2 · utility
4Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2014 |
| Grant date | Aug 7, 2018 |
| Priority date | — |
| Expiry date | Feb 9, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to novel block copolyimides for preparing highly selective integrally asymmetrical gas separation membranes of improved permeance, processes for preparing these block copolyimides, membranes prepared from the block copolyimides, and also the use of the block copolyimides and of the membranes prepared therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.