Device for the continuous coating of a metallic material in motion with a polymer deposition having a composition gradient
US5437725A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1994 |
| Grant date | Aug 1, 1995 |
| Priority date | — |
| Expiry date | Mar 18, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C16/545
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The subject of the invention is a process of continuous coating, with a polymer deposition, of a metallic material in motion inside a chamber under a reduced pressure, in which process the monomer of the said polymer is injected, in the gaseous state, into the said chamber and the conditions for forming a cold plasma are created so as to cause coating of the said material with the said polymer deposition, which comprises, in at least one region of the said chamber, the said material being made to pass through a magnetic field so as to cause a variation in the composition of the said polymer deposition in the said region. The subject of the invention is also a device for the implementation of this process, and a product obtained thereby.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.