Process for forming porous composite membrane
US5814372A · kind A · utility
17Cited by
2References
29Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 26, 1996 |
| Grant date | Sep 29, 1998 |
| Priority date | — |
| Expiry date | Sep 26, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D69/125
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A composite porous membrane is provided which comprises a porous membrane substrate having an average pore size between 0.01 and 10 microns formed of a first polymer which is coated over its entire surface with a crosslinked second polymer. The second polymer is dissolved in a solvent with a free radical polymerization initiator in the absence of a crosslinking agent. The second polymer is crosslinked in situ and rendered insoluble by mild heating and/or exposure to ultraviolet light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.