Method and system for controlling pore size of microporous phase inversion membranes
US7560024B2 · kind B2 · utility
5Cited by
14References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2003 |
| Grant date | Jul 14, 2009 |
| Priority date | — |
| Expiry date | Apr 21, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F25/42
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention provides for a method to control the pore size or bubble point of porous membranes made by phase inversion in a continuous manufacturing process by blending two or more solutions each capable of producing a porous membrane with different pore size or bubble point than the pore size or bubble point of the desired membrane, and blending these solutions by the method of this invention to produce the desired pore size or bubble point. This invention also provides for a method to monitor membrane pore size in a continuous process and adjust pore size during the continuous manufacturing process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.