Filtration medium with electrospun metal oxide nanofiber layer
US9421293B2 · kind B2 · utility
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40Claims
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Key dates
| Filing date | Apr 17, 2012 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | Apr 17, 2032 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F8/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A multi-layered filtration medium for detoxification of chemical contaminants and disinfection of biological contaminants. The filtration medium includes two disinfection nanofiber layers and one detoxification nanofiber layer disposed between the two disinfection nanofiber layers. The filtration medium is loaded with high content of a detoxifying material which capable of achieving about 95% detoxification efficiency with no leaching of the detoxifying material. The filtration medium may also include a medicinal substance for medical applications and a sensor for indicating the lifetime of the filtration medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.