Selective permeable membrane for separation of liquid solution
US5006255A · kind A · utility
6Cited by
14References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 11, 1988 |
| Grant date | Apr 9, 1991 |
| Priority date | — |
| Expiry date | Oct 11, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08B37/003
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A novel selective permeable membrane is made by cross-linking of chitosan by aldehyde, preferably by dialdehyde. The dialdehyde cross-linked membrane has a remarkably high separation efficiency for water-alcohol solution due to hydrophilic property of chitosan and its very dense structure obtained by the cross-linking of chitosan with dialdehyde.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.