Membrane, method for manufacturing the same, and composite membrane including the same
US9156009B2 · kind B2 · utility
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9References
16Claims
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Key dates
| Filing date | Dec 19, 2011 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Dec 19, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2325/0233
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Example embodiments relate to a membrane, a method of manufacturing the same, and a composite membrane including the same. The membrane may include a polyacrylonitrile-based copolymer that includes a hydrophobic side chain and/or a hydrophobic repeating unit. The membrane may include a skin layer and a porous layer. A thickness ratio of the skin layer relative to the porous layer may be about 0.01 or less. The skin layer may have a thickness of about 1 μm or less. The membrane may have a relatively high water flux. When using the membrane, a water treatment module having higher energy efficiency may be achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.