Composite membranes for fluid separations
US4931181A · kind A · utility
16Cited by
1References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1989 |
| Grant date | Jun 5, 1990 |
| Priority date | — |
| Expiry date | Jun 2, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D69/1213
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for designing and making composite membranes having a microporous support membrane coated with a permselective layer. The method involves calculating the minimum thickness of the permselective layer such that the selectivity of the composite membrane is close to the intrinsic selectivity of the permselective layer. The invention also provides high performance membranes with optimized properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.