Method for utilizing a plasma reaction under an atmospheric pressure
US5340618A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jul 21, 1992 |
| Grant date | Aug 23, 1994 |
| Priority date | — |
| Expiry date | Jul 21, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2004/84
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method is disclosed for the treatment of a powder by use of a plasma reactor under atmospheric pressure, comprising the steps of providing a reaction chamber having first and second electrodes covered with a dielectric, an upper gas exhaust means and a lower gas inlet means, feeding a fluidizing gas comprising a rare gas, a monomer gas or a mixture thereof through said gas inlet means into said chamber to agitate a powder to be treated in said chamber, concurrently removing said gas from said chamber through said gas exhaust means; and generating a glow plasma under atmospheric pressure in said chamber by applying a voltage to said first electrode and grounding said second electrode whereby said powder is provided with an anticorrosive surface treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.