Gas separation membranes
US7166148B2 · kind B2 · utility
13Cited by
34References
42Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2003 |
| Grant date | Jan 23, 2007 |
| Priority date | — |
| Expiry date | Nov 28, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/05
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of producing composite, hollow fibre gas separation membranes, wherein external surfaces of the porous hollow fibre tubes used in the construction of the membranes are subjected to a modification technique before the external surfaces are coated with a thin layer of selective polymer so as to increase the number of pores in the fibre surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.