Method and device for continuously coating at least a metal strip with a crosslinkable polymer fluid film
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United States of America Patent
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May 13, 2003
Grant Date -
N/A
app pub date -
Jun 13, 2001
filing date -
Dec 16, 1998
priority date (Note) -
Expired
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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.degree. 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.
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