Crosslinked organic polyamide or polyhydrazine permselective polymeric membranes
US4086215A · kind A · utility
10Cited by
5References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 7, 1976 |
| Grant date | Apr 25, 1978 |
| Priority date | — |
| Expiry date | Jan 7, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K3/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Permselective membranes are prepared by crosslinking synthetic organic polyamides or polyhydrazides having --CO.sub.2 H groups and/or --SO.sub.3 H groups with a salt of metal selected from the class consisting of alkaline earth metals, transition metals, aluminum group metals and lead group metals. The membranes are useful in separating components of fluid mixtures or solutions such as water containing dissolved salts, and are especially useful in producing pure water from saline water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.