Method of cleaning the surface of a material coated with an organic substrate and a generator and device for carrying out said method
US7662237B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2003 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Sep 13, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2237/335
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for the continuous cleaning of the surface of a material (2) which is coated with an organic substance. Steps of the method are: introducing the material (2) into a treatment area which is supplied with a gas stream containing oxygen; earthing the material (2); and generating a plasma by imposing an electric field between the surface of the material (2) and at least one dielectric-covered electrode (3), the electric field being pulsed and providing a succession of positive and negative voltage pulses in relation to the material (2). Moreover, the maximum voltage of the positive pulses U+ is greater than the arc-striking voltage Ua, and the maximum absolute value of the voltage of the negative pulses U− is less than the striking voltage Ua. Also, a generator and a device which are used to carry out this method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.