Patent Number: 7,707,963

Title: System for forming multi-layer films using corona treatments

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.

Inventors: Ciliske; Scott L. (St. Paul, MN), King; Gregory F. (Minneapolis, MN), Strobel; Mark A. (Maplewood, MN), Getschel; Joel A. (Osceola, WI), Chien; Bert T. (St. Paul, MN)

Assignee: 3M Innovative Properties Company

International Classification: B05C 5/02 (20060101)

Expiration Date: 5/04/12018