P-xylylenediamide/diimide composite RO membranes
US4853122A · kind A · utility
5Cited by
9References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 15, 1987 |
| Grant date | Aug 1, 1989 |
| Priority date | — |
| Expiry date | Sep 15, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G69/28
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Composite RO membranes having good resistance to halogen attack and extraordinarily high fluxes are disclosed, the composite membranes comprising a microporous polymeric support with an interfacially polymerized salt-rejecting layer thereon comprising an aromatic aliphatic diamide/diimide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.