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US 8,137,776 B2Granted
Lamination adhesion of foil to thermoplastic polymers
AssigneeE.I. du Pont de Nemours and Company
InventorsBarry Alan Morris, Yves M. Trouilhet
Life of this patent
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Abstract
Disclosed is a multilayer structure, which comprises or is produced from a foil laminated to thermoplastic compositions using ethylene/butyl acrylate copolymer compositions as a tie layer. The multilayer structures can be useful as packaging films and industrial films. Also disclosed is a lamination process for producing the structure. Further disclosed are packages comprising the structures.
Claims19
A multilayer structure comprising or produced from at least one layer comprising foil;
- at least one layer of an ethylene/butyl acrylate copolymer composition;
- at least one layer of a thermoplastic polyolefin composition;
- and optionally at least one additional layer comprising or produced from paper, polyester, polyamide, ethylene vinyl alcohol, polyethylene vinyl acetate, ethylene/acrylic acid copolymer or an ionomer thereof, polyvinylidene chloride, anhydride-modified ethylene polymer, or combinations of two or more thereof wherein the foil is a metal foil and the layer of the ethylene/butyl acrylate copolymer composition is laminated to and in contact with both the layer comprising foil and the layer of the thermoplastic polyolefin composition.
Dependencies are inferred from the claim text.