Composite gas separation membranes
US6605140B2 · kind B2 · utility
28Cited by
13References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2001 |
| Grant date | Aug 12, 2003 |
| Priority date | — |
| Expiry date | Aug 8, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/05
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A polysulfone-zeolite composite membrane can be used to separate gas pairs such as hydrogen/carbon dioxide. Zeolite, preferably zeolite 3A particles are covalently bonded to the polymer using an aminofunctional methoxysilane as a coupling agent to bind the zeolite particles to an aldehyde modified polysulfone matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.