Solvent resistant labels and containers including said labels
View Patent ↗A solvent resistant label for attachment to a container that includes a solvent therein includes at least one, and preferably two solvent resistant outer surface layers that are resistant to the solvent in the container. A combination of the solvent resistant label and container also constitutes part of this invention.
1. In combination, a metal container having an outer surface, a material in said container, said material including an aliphatic hydrocarbon solvent therein, and a label including, as separate components, an adhesive securing the label to the outer surface of the container and a solvent resistant surface layer for preventing distortion of said label, said solvent resistant surface layer comprising a one-part, non-adhesive hydroxyl functionalized polyether amine resin resistant to the material in said container, said solvent resistant surface layer being an inner layer including an inner exposed surface, said inner exposed surface facing the outer surface of the container, said label including an outer layer having an outer exposed surface opposed to said inner exposed surface.
2. The combination of claim 1 , wherein said label further includes a tie layer between said solvent resistant surface layer and an adjacent polyolefin layer.
3. The combination of claim 1 , wherein said solvent resistant surface layer comprises a blend of said hydroxyl functionalized polyether amine and a maleated polyolefin.
4. The combination of claim 1 , said at least one solvent resistant surface layer comprising a blend of a maleated polyolefin and said hydroxyl functionalized polyether amine, either alone or blended with nanoparticles.
5. The combination of claim 1 , wherein said label is a multilayer film including an interior core layer employing a polyolefin homopolymer or copolymer, the solvent resistant surface layer on one side of said core layer and constituting an exposed surface of said label, and the outer layer on the side of said core layer opposed to said solvent resistant surface layer.
6. The combination of claim 5 , wherein said multi-component structure includes a second film, said second film including a solvent resistant surface layer comprising said hydroxyl functionalized polyether amine resistant to the material in said container, said solvent resistant surface layer of said second film providing an exposed surface of the label.
7. The combination of claim 1 , wherein said label includes at least two films laminated together, at least one of said films being a multilayer film including an interior core layer employing a polyolefin homopolymer or copolymer and one of said inner or outer layers of said label, at least another of said films including the other of said inner or outer layers of the label, said outer layer comprising a hydroxyl functionalized polyether amine.
8. The combination of claim 1 , wherein said label has a length greater than the perimeter or circumference of the container, marginal ends of said label being overlapped and bonded together by said adhesive, said inner exposed surface of the solvent resistant surface layer of the label being in contact with the outer surface of the container.
9. The combination of claim 2 , wherein said tie layer is a maleated polypropylene.
10. The combination of claim 1 , said solvent resistant surface layer consisting essentially of the hydroxyl functionalized polyether amine resistant to the material in said container.