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US 7,707,963 B2Granted
System for forming multi-layer films using corona treatments
Assignee3M Innovative Properties Company
InventorsScott L. Ciliske, Gregory F. King, Mark A. Strobel, Joel A. Getschel, Bert T. Chien
Life of this patent
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Abstract
A system for forming a multi-layer film, where the system includes a backing support having a surface and a close-coupled unit configured to be disposed adjacent the surface of the backing support. The close-coupled unit includes a corona electrode and a coating die disposed at a downstream location along the surface from the corona electrode.
Claims15
A system for forming a multi-layer film, the system comprising:
- a backing support having a surface;
- and
- a close-coupled unit configured to be disposed adjacent the surface of the backing support, the close-coupled unit comprising:
- a corona electrode;
- a coating die disposed at a downstream location along the surface from the corona electrode;
- and
- a slot-fed gas knife disposed at an upstream location along the surface from the corona electrode.
4 more elements
A system for forming a multi-layer film, the system comprising:
- a backing support configured to support a substrate;
- a corona electrode configured to corona treat the substrate on the backing support while the substrate is in a processing environment, thereby forming a corona-treated surface;
- a coating die configured to coat a coating material on the corona-treated surface of the substrate on the backing support while the substrate remains in the processing environment, wherein the coating die is disposed at about 10 centimeters or less downstream from the corona electrode;
- and
- a slot-fed gas knife disposed at an upstream location from the corona electrode along the backing support.
2 more elements
Dependencies are inferred from the claim text.