Composite membrane with polyalkylene oxide modified polyamide surface
US6280853A · kind A · utility
81Cited by
20References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 10, 1999 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Jun 10, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31746
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A composite membrane and method for making the same, comprising a porous support and a crosslinked polyamide surface having polyalkylene oxide groups grafted thereto. The subject membrane provides improved resistance to fouling while offering excellent flux and salt passage performance. The subject method is easily adapted to commercial scale-up and does not require the use of chemical initiators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.