Method and formulation using passive electrostaticity for improving filter performance
US6924326B2 · kind B2 · utility
18Cited by
7References
57Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2001 |
| Grant date | Aug 2, 2005 |
| Priority date | — |
| Expiry date | Dec 21, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L71/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method treats ordinary filters with an electrostatic material that will turn any filter into a passive electrostatic filter. A formulation is sprayed or otherwise applied onto the filter to increase the filter's ability to effectively reduce indoor air particulates and improve indoor air quality. The formulation includes a water-soluble dielectric formulation and can also be combined with a biocide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.