Film extrusion method
OwnerTony J. Aguiar, Malcolm Wardinventors
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Abstract
A method of applying a film, including a top layer having a softening point temperature and an adhesive tie layer, to an extruded substrate having a receiving surface to form a finished extrusion is provided including the steps of heating the adhesive tie layer of the film, heating the extruded substrate, placing the adhesive tie layer of the film in contact with the receiving surface of the extruded substrate, applying a predetermined force to the film to bond the adhesive tie layer to the extruded substrate and form the finished extrusion, and maintaining the top layer of the film at a temperature below the softening point temperature to prevent the top layer from being marred as the adhesive tie layer bonds to the extruded substrate.
Claims22
A method of applying a film, including a top layer having a softening point temperature and an adhesive tie layer, to an extruded substrate having a receiving surface to form a finished extrusion, the method comprising the steps of:
- heating the adhesive tie layer of the film;
- heating the extruded substrate;
- placing the adhesive tie layer of the film in contact with the receiving surface of the extruded substrate;
- applying a predetermined force to the film to bond the adhesive tie layer to the extruded substrate and form the finished extrusion;
- and
- maintaining the top layer of the film at a temperature below the softening point temperature to prevent the top layer from being marred as the adhesive tie layer bonds to the extruded substrate.
A method of applying a film, including an adhesive tie layer and a top layer having a softening point temperature, to an extruded substrate to form a finished extrusion, the method comprising the steps of:
- heating the adhesive tie layer to a temperature of at least 180° C.;
- heating the extruded substrate;
- placing the adhesive tie layer of the film into contact with the receiving surface of the extruded substrate;
- applying a predetermined force to the film to bond the adhesive tie layer to the extruded substrate;
- and
- maintaining the top layer of the film at a temperature below the softening point temperature to prevent the top layer from being marred as the adhesive tie layer bonds to the extruded substrate.
A method of applying a film, including a top layer having a softening point temperature and an adhesive tie layer, to an extruded substrate to form a finished extrusion utilizing a tool having a first entry point, a second entry point, a chute at the second entry point, and an application shoe, the method comprising the steps of:
- feeding the extruded substrate into the tool at the first entry point;
- feeding the film through the chute and into the second entry point;
- heating the adhesive tie layer of the film as the film moves through the chute;
- heating the extruded substrate;
- placing the heated adhesive tie layer of the film into contact with the heated extruded substrate;
- activating the application shoe to apply a predetermined force to the film in order to bond the adhesive tie layer to the extruded substrate;
- and
- maintaining the top layer at a temperature below the softening point temperature to prevent the top layer from being marred as the adhesive tie layer bonds to the extruded substrate.
Dependencies are inferred from the claim text.