Method and device for continuously coating at least a metal strip with a crosslinkable polymer fluid film
US6562407B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2001 |
| Grant date | May 13, 2003 |
| Priority date | — |
| Expiry date | Jun 13, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D1/28
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The invention concerns a method for continuously coating at least a metal strip with a crosslikable polymer fluid film free of non-active solvent or diluent and whereof the softening temperature is higher than 50° C. The method consists in continuously unwinding the metal strip (1) on at least a back-up roll (3); forming, on a roll (20) by forced flow, a layer of said crosslinkable polymer in melted state; forming, from said layer (30), said crosslinkable polymer film (31); and transferring entirely in thickness said film onto the metal strip (1) and, between the zone forming the layer (30) on the roll (20) and the zone applying the film (31) on the metal strip, in thermally conditioning the crosslinkable polymer to reduce its viscosity. The invention also concerns a coating device for implementing said method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.