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US 2019/0315540 A1Published application
Packaging material made of lacquered aluminum
AssigneeConstantia Teich GmbH
InventorsWerner Veit, Lambert Nekula, Martin Zwetzbacher
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AssigneeConstantia Teich GmbH
InventorsWerner Veit, Lambert Nekula, Martin Zwetzbacher
Estimating the term…
A packaging material made of a support layer of aluminum and a lacquer layer applied onto the support layer with excellent opening behavior. The lacquer of the lacquer layer consists of a solvent, a binder, and a plasticizer. A polymer binder with a molecular weight of at least 80,000 Dalton, preferably at least 100,000 Dalton, is used, and by virtue of the mixing ratio between the solvent, the binder, and the plasticizer, a bond strength between the lacquer layer and the support layer ranging from 0.07 N/50 mm to 0.30 N/50 mm and an elongation at break of the lacquer layer of at least 150% are set.
A packaging material consisting of an aluminum support layer having a layer thickness in the range of 5-20 μm and a lacquer layer applied thereto at least in part and having a layer thickness in the range of 4-15 μm, wherein the lacquer of the lacquer layer consists of a solvent, a binder and a plasticizer, wherein a polymeric binder having a molecular weight of at least 80,000 Daltons is used, and a bond strength between the lacquer layer and the support layer in the range of 0.07 N/50 mm and 0.30 N/50 mm and an elongation at break of the lacquer layer of at least 150% is set by the mixing ratio of the solvent, binder and plasticizer.
Dependencies are inferred from the claim text.