Crosslinked composite membrane and process for producing the same
US4895685A · kind A · utility
9Cited by
1References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 10, 1989 |
| Grant date | Jan 23, 1990 |
| Priority date | — |
| Expiry date | Feb 10, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/62
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A crosslinked composite membrane having high permeation velocity and sepaion factor and a process for producing the same. The membrane comprises a skin layer comprising a crosslinking reaction product of a water-soluble polysaccharide having a sulfonate group and/or a sulfonic acid group and a polyfunctional melamine compound the crosslinked composite membrane can be formed on a porous base such as an ultrafilter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.