Composite membranes with performance enhancing layers
US8011517B2 · kind B2 · utility
14Cited by
15References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2009 |
| Grant date | Sep 6, 2011 |
| Priority date | — |
| Expiry date | Nov 24, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2325/48
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A composite membrane includes a filtration membrane with a surface; and a layer on the surface of the filtration membrane. The layer includes a polymer including a poly(ethylene glycol) moiety cross-linked with an ammonium salt or a precursor of an ammonium salt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.