Electret filter media containing filtration enhancing additives
US5976208A · kind A · utility
98Cited by
43References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 1997 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | Dec 2, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2418
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Electret filter media comprising a fibrous web of a blend of a thermoplastic resin and at least one compound or oligomer that enhances the web's electret properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.