Ultrafiltration membranes and methods of making
US9010545B2 · kind B2 · utility
2Cited by
14References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2011 |
| Grant date | Apr 21, 2015 |
| Priority date | — |
| Expiry date | Dec 6, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2325/022
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention is an integral multilayered composite membrane having at least one ultrafiltration layer made by cocasting or sequentially casting a plurality of polymer solutions onto a support to form a multilayered liquid sheet and immersing the sheet into a liquid coagulation bath to effect phase separation and form a multilayered composite membrane having at least one ultrafiltration layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.