POLYLACTIC ACID POLYMER BASED FILM COMPRISING AN ADHESIVE LAYER

An article is described such as a tape or sheet, comprising a PLA-based film and a layer of (e.g. pressure sensitive) adhesive disposed on the film. The PLA-based film comprises a semicrystalline polylactic acid polymer; a second polymer, polyvinyl acetate polymer having a glass transition temperatu...

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Bibliographische Detailangaben
Hauptverfasser:	EMSLANDER, Jeffrey O, SETH, Jayshree, DEHN, Derek J, LIPSCOMB, Corinne E, ZHOU, Ning, BARTUSIAK, Joseph T, CARLSON, Jeffrey A
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	An article is described such as a tape or sheet, comprising a PLA-based film and a layer of (e.g. pressure sensitive) adhesive disposed on the film. The PLA-based film comprises a semicrystalline polylactic acid polymer; a second polymer, polyvinyl acetate polymer having a glass transition temperature (Tg) of at least 25°C; and plasticizer; wherein said second polymer results in a film that does not exhibit plasticizer migration when aged at 80°C for 24 hours. The tape or sheet may further comprises a low adhesion backsize or a release liner. The article can be suitable for various end-uses. In one embodiment, the tape is a paint masking tape. In another embodiment, the tape is a floor marking tape.