Filter materials and methods for the production thereof
US6811594B1 · kind B1 · utility
5Cited by
9References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2002 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | Jul 12, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/48
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
There is disclosed an electrostatically charged filter material comprising a blend of polyester fibers and electrostatically chargeable fibers of at least one other kind.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.