Filter having melt-blown and electrospun fibers
US8172092B2 · kind B2 · utility
38Cited by
17References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2009 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Jun 25, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2305/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A multi-layer filter media including at least one layer of melt-blown fiber filter media and at least one layer of electrospun nanofiber filter media is provided. The multi-layer filter media of the present invention is configured such that the at least one layer of the melt-blown fiber filter media is on the upstream and the at least one electrospun nanofiber filter media is positioned downstream of the at least one melt-blown fiber filter media.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.