Fluid separation composite membranes prepared from sulfonated aromatic polymers in lithium salt form
US5364454A · kind A · utility
19Cited by
48References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1993 |
| Grant date | Nov 15, 1994 |
| Priority date | — |
| Expiry date | Jun 30, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D71/82
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to fluid separation composite membranes prepared from sulfonated aromatic polymers in lithium salt form with sulfonic acid groups attached to aromatic rings that are incorporated into the main polymeric backbone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.