Composite reverse osmosis membrane and novel acid chloride
US5336409A · kind A · utility
29Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1993 |
| Grant date | Aug 9, 1994 |
| Priority date | — |
| Expiry date | Jan 22, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G69/26
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A composite reverse osmosis membrane comprising a thin membrane and a microporous supporting membrane supporting it, wherein said thin membrane mainly comprises a crosslinked polyamide comprising; (a) an amine component containing at least one member selected from the group consisting of substantially monomeric amine compounds each having at least two primary and/or secondary amino groups, and (b) an acid halide component containing at least one member selected from the group consisting of substantially monomeric cyclic acid halide compounds each having at least two acid halide groups and comprising at least two rings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.