Atmospheric pressure plasma processing of polymeric materials utilizing close proximity indirect exposure
US9447205B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 19, 2012 |
| Grant date | Sep 20, 2016 |
| Priority date | — |
| Expiry date | May 25, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H1/2437
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A plasma treatment method that includes providing treatment chamber including an intermediate heating volume and an interior treatment volume. The interior treatment volume contains an electrode assembly for generating a plasma and the intermediate heating volume heats the interior treatment volume. A work piece is traversed through the treatment chamber. A process gas is introduced to the interior treatment volume of the treatment chamber. A plasma is formed with the electrode assembly from the process gas, wherein a reactive species of the plasma is accelerated towards the fiber tow by flow vortices produced in the interior treatment volume by the electrode assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.