Composite semipermeable membrane
US4802984A · kind A · utility
16Cited by
2References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 4, 1988 |
| Grant date | Feb 7, 1989 |
| Priority date | — |
| Expiry date | May 4, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D69/1251
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A composite semipermeable membrane on a semiporous support or substrate is produced by employing an interfacial polymerization reaction between (1) an aqueous phase comprising a blend of water soluble and water dispersable compounds and (2) an organic phase comprising poly-functional crosslinking reagents capable of reacting and/or polymerizing with one or more of the ingredients of said aqueous phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.