Tetrakis-amido high flux membranes
US4876009A · kind A · utility
5Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 21, 1988 |
| Grant date | Oct 24, 1989 |
| Priority date | — |
| Expiry date | Oct 21, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D71/56
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Composite RO membranes of a microporous polymeric support and a polyamide reaction product of a tetrakis-aminomethyl compound and a polyacylhalide are disclosed, said membranes exhibiting high flux and good chlorine resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.