P-xylylenediamide/diimide composite RO membranes
US4978455A · kind A · utility
2Cited by
2References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 6, 1989 |
| Grant date | Dec 18, 1990 |
| Priority date | — |
| Expiry date | Mar 6, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A20/131
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Composite RO membranes having good resistance to halogen attack and 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.