Method for extrusion coating a lightweight web
AssigneeThilmany LLC
InventorGary H. Knauf
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Abstract
The specification discloses a method for extrusion coating a lightweight web. According to the method, a length of a lightweight web along with a length of a carrier web is fed to an extruder with the lightweight web positioned atop the carrier web. A polymer film is then extruded onto the combined lightweight web and carrier web to provide an extrusion-coated lightweight web. Thereafter, the extrusion-coated lightweight is separated from the carrier web. Also disclosed are extrusion-coated lightweight webs formed according to the method.
Claims27
A method for extrusion coating a lightweight web comprising:
- feeding a length of a nonwoven fabric, lightweight web along with a length of carrier web to an extruder with the lightweight web atop the carrier web;
- extruding a polymer film coating onto the lightweight web and carrier web in the extruder so that a surface of the lightweight web is coated by the extruded coating to provide an extrusion-coated lightweight web;
- and
- separating the extrusion-coated lightweight web from the carrier web.
A method for extrusion coating a lightweight web comprising:
- feeding a length of a paper, lightweight web along with a length of carrier web to an extruder with the lightweight web atop the carrier web;
- extruding a polymer film coating onto the lightweight web and carrier web in the extruder so that a surface of the lightweight web is coated by the extruded coating to provide an extrusion-coated lightweight web;
- and
- separating the extrusion-coated lightweight web from the carrier web.
A method for extrusion coating a lightweight web comprising:
- feeding a length of a metal foil, lightweight web along with a length of carrier web to an extruder with the lightweight web atop the carrier web;
- extruding a polymer film coating onto the lightweight web and carrier web in the extruder so that a surface of the lightweight web is coated by the extruded coating to provide an extrusion-coated lightweight web;
- and
- separating the extrusion-coated lightweight web from the carrier web.
Dependencies are inferred from the claim text.