Silicone-coated organic solvent resistant polyamide composite nanofiltration membrane, and method for preparing the same
US6887380B2 · kind B2 · utility
10Cited by
6References
6Claims
0Family size
Assignee
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Key dates
| Filing date | May 17, 2002 |
| Grant date | May 3, 2005 |
| Priority date | — |
| Expiry date | Apr 5, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D71/56
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a silicone-coated organic solvent resistant polyamide composite nanofiltration membrane and a method for preparing the same. More particularly, the present invention relates to a nanofiltration composite membrane that is not only rejection rate superior but also organic solvent stable and flux excellent, prepared by coating with silicone during the process of interfacial polymerization of polyamide on the surface of porous support; and a method for producing it.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.