Adhesive-Backed Composite Film
Assignee3M Innovative Properties Company
InventorsJustin M. BOLTON, Ryan E. MARX, Marco CAPROTTI, Alvaro S. DOMENIGHI, Robert M. VORWERK, Daniel C. MUNSON, Patrizia CAPOGRECO
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Abstract
Provided is a composite film for attachment to an elastomeric substrate. The composite film comprises the following layers, in the order below: an elastomeric layer comprising a thermoplastic polyurethane; an ink layer; and a pressure sensitive adhesive layer comprising a styrenic block copolymer blended with a phenolic resin. Advantageously, the provided composite films can withstand harsh outdoor environments and stresses while providing high anchorage to elastomeric substrates, such as car tires, for a long service life.
Claims15
A composite film for attachment to an elastomeric substrate, the composite film comprising the following layers, in the order below:
- an elastomeric layer comprising a thermoplastic polyurethane;
- an ink layer;
- and
- a pressure sensitive adhesive layer comprising a styrenic block copolymer blended with a phenolic resin.
A process of making a composite film comprising:
- disposing an ink layer on an elastomeric layer, wherein the elastomeric layer comprises a thermoplastic polyurethane;
- and
- disposing a pressure sensitive adhesive layer on the ink layer, the pressure sensitive adhesive layer comprising a styrenic block copolymer blended with a phenolic resin.
Dependencies are inferred from the claim text.