B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 47/02 (2006.01) B05D 1/26 (2006.01) D21H 23/46 (2006.01)
Patent
CA 2463766
The specification discloses a method for extrusion coating a lightweight web. According to the method, a length of a lightweight web (14) along with a length of a carrier web (20) is fed to an extruder (34) with the lightweight web positioned atop the carrier web. A polymer film (12) is then extruded onto the combined lightweight web and carrier web to provide an extrusion-coated lightweight web (10). Thereafter, the extrusion-coated lightweight is separated from the carrier web. Also disclosed are extrusion-coated lightweight webs formed according to the method.
L'invention concerne un procédé de revêtement par extrusion d'une bande continue légère. Selon l'invention, une longueur d'une bande continue légère (14) posée sur une longueur d'une bande continue de support (20) est alimentée dans une extrudeuse (34). Un film polymérique (12) est ensuite extrudé sur l'ensemble bande continue légère et bande continue de support pour donner une bande continue légère revêtue par extrusion (10). La bande continue légère revêtue par extrusion est ensuite détachée de la bande continue de support. L'invention concerne en outre des bandes continues légères revêtues par extrusion fabriquées selon le procédé de l'invention.
Gowling Lafleur Henderson Llp
International Paper Company
Prolamina Midwest Corporation
LandOfFree
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