Gas permselective composite membrane prepared by plasma polymerization coating techniques
US4824444A · kind A · utility
66Cited by
13References
39Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 26, 1987 |
| Grant date | Apr 25, 1989 |
| Priority date | — |
| Expiry date | Oct 26, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2962
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Gas permselective membranes having a high selectivity and high flux are prepared by plasma polymerizing a coating onto the surface of a microporous membrane substrate. Two types of coatings are disclosed. Gas separatory modules utilize the novel membranes in the form of hollow fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.