Sollac

Thierry Soas

Claude Bonnebat

Fr&eacute;d&eacute;ric Jenny

Olivier Brun

A method and device for continuously coating at least a metal strip ( ) with a crosslinkable polymer fluid film which is free of non-reactive solvent or diluent, and which has a softening temperature higher than 50&deg; C. The method includes the steps of: continuously unwinding the metal strip ( ) on at least a back-up roll ( ); forming, by forced flow on an applicator roll ( ) having a deformable surface, a layer of the crosslinkable polymer; and forming on the applicator roll ( ) the crosslinkable polymer film and transferring the film from the applicator roll onto the metal strip. The device implements this method.

Method and device for continuously coating at least a metal strip with a crosslinkable polymer fluid film

A method for the continuous coating of at least one metal strip with a fluid, crosslinkable polymer film free from solvent or diluent and having a thickness less than that of the metal strip. The process firs continuously moves the metal strip on at least one support roller, pre-heats the strip, forms by forced flow, on a pinch roller on a lap of the crosslinkable polymer, heats and drives in rotation the pinch roller in the same direction as the support roller, and forms the crosslinkable film by compressing, between the pinch roller and the metal strips, an applicator element with a deformable surface, heated and driven in rotation in the same direction as the support roller to transfer the film from the pinch roller onto the applicator element and from the applicator element onto a metal strip. A coating device for implementing this method is also disclosed.

Method and device for continuous coating of at least one metal strip with a fluid cross-linkable polymer film

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&deg; C. The method consists in continuously unwinding the metal strip ( ) on at least a back-up roll ( ); forming, on a roll ( ) by forced flow, a layer of said crosslinkable polymer in melted state; forming, from said layer ( ), said crosslinkable polymer film ( ); and transferring entirely in thickness said film onto the metal strip ( ) and, between the zone forming the layer ( ) on the roll ( ) and the zone applying the film ( ) 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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Chantilly, France

Thierry Soas