Composite membrane with multi-layered active layer
US8857629B2 · kind B2 · utility
1Cited by
11References
8Claims
0Family size
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Key dates
| Filing date | Jul 15, 2010 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | May 18, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A polymeric membrane includes an active layer on a support. The active layer includes at least two chemically distinct crosslinked, polyamide films, and the films are crosslinked with each other at an interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.