Method for preparing a filtration membrane and filtration membrane prepared by said method
US8820540B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2011 |
| Grant date | Sep 2, 2014 |
| Priority date | — |
| Expiry date | Jan 27, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2262/062
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Method for preparing a filtration membrane and a filtration membrane prepared by the method. According to one embodiment, the method involves casting a polymer solution onto a porous support to form a coated support. The coated support is then quenched to form a membrane/support composite, and the membrane/support composite is then dried. Next, a first end of a first piece of adhesive tape is applied to the membrane side of the composite, and the second end of the first piece of adhesive tape is applied to a first rotatable winder. In addition, a first end of a second piece of adhesive tape is applied to the support side of the composite, and the second end of the second piece of adhesive tape is applied to a second rotatable winder. The two winders are then rotated so as to pull apart the membrane from the support.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.