Isocyanurate crosslinked polyurethane membranes and their use for the separation of aromatics from non-aromatics
US5075006A · kind A · utility
11Cited by
7References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 3, 1990 |
| Grant date | Dec 24, 1991 |
| Priority date | — |
| Expiry date | Dec 3, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention is directed to non-porous isocyanurate-crosslinked polyurethane membranes. These membranes are useful for the separation of aromatic hydrocarbons from non-aromatic hydrocarbons. The separation can be performed using any commonly accepted membrane separation technique, e.g. reverse osmosis, dialysis, pervaporation or perstraction but is preferably performed under pervaporation or perstraction conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.