Inventors:
- St. Paul MN, US
Jeffrey P. Kalish - St. Paul MN, US
Jacob D. Young - St. Paul MN, US
Ramesh C. Kumar - Woodbury MN, US
Sonja S. Mackey - St. Paul MN, US
Kanta Kumar - Woodbury MN, US
Adam R. Wohl - Mahtomedi MN, US
David J. Kinning - Woodbury MN, US
Michael D. Crandall - Sparks NV, US
Ignatius A. Kadoma - Cottage Grove MN, US
International Classification:
C08J 5/18
B32B 27/08
B32B 27/36
B32B 7/06
B32B 7/12
C08L 67/04
Abstract:
Compositions and films are described comprising a polylactic (PLA) polymer and a copolymer comprising a first moiety comprising a C12-C30 alkyl group and a second moiety that is miscible in the composition. Suitable first moieties include a C12-C30 alkyl (meth)acrylate or a polyvinyl alcohol comprising pendent C12-C30 alkyl groups. Suitable second moieties include C1-C10 (meth)acrylic acid or ester thereof, vinyl acetate and ethylene vinyl acetate. The aforementioned composition may be used to form a release layer of an adhesive article such as a pressure sensitive adhesive tape. The films may be a monolithic film or a film layer of a multilayer film. The release layer may be disposed upon a substrate layer that may also comprise PLA. The films are produced by melt extrusion of the aforementioned composition and may be oriented.