Electret treatment of high loft and low density nonwoven webs
US6365088B1 · kind B1 · utility
32Cited by
261References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1999 |
| Grant date | Apr 2, 2002 |
| Priority date | — |
| Expiry date | Jun 24, 2019 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H3/16
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The process of forming an electret nonwoven web, the process including the steps of providing a nonwoven web, generating a DC corona discharge from an apparatus including an anode electrically configured as a parallel device, and subjecting the web to DC corona discharge to form an electret.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.