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US 11,498,320 B2Granted
Multilayer films and adhesive tapes
Assignee3M Innovative Properties Company
InventorsChristopher J. Rother, Jose P. De Souza, Robert B. Rosner, Jacob D. Young, Jeffrey O. Emslander, Gregg A. Patnode, Ann R. Fornof, Rafael Garcia-Ramirez, Jay M. Krieger
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Abstract
Multilayer films and adhesive tapes that include such films, wherein the multilayer films include plasticized polyvinyl chloride and optionally one or more fillers.
Claims10
An adhesive tape comprising:
- a backing comprising a multilayer film comprising one or more organic polymers, wherein each layer of the multilayer film backing comprises plasticized polyvinyl chloride having at least 25 wt-% polyvinyl chloride, based on the total weight of the layer, and at least one layer comprises one or more fillers;
- a primer layer disposed on at least one major surface of the backing;
- and
- a pressure sensitive adhesive layer disposed on the primer layer, wherein the primer is solventless, wherein the primer layer comprises an elastomeric epoxidized polymer, wherein the epoxidized polymer comprises a concentration of epoxidized units of at least 0.5 wt-%.
1 more element
Dependencies are inferred from the claim text.