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US 2026/0249600 A1Published application
Layered structure
AssigneeCamm Solutions (Spain) R&D, S.L.U.
InventorsWerner BALKAU, Kurt KRONAWITTLEITHNER, Robert STEIN, Bernd LÜHMANN, Ben DÖHMEN, Sabrina STIEGLER, Marius-Konstantin WICHE, Kristina KÖLLING
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Abstract
A paper base layer and a barrier layer is provided. The barrier layer includes a water-soluble polymer and a salt. The layered structure can be produced by applying the barrier layer as a foil like element onto the paper base layer.
Claims15
A layered structure comprising:
- a paper base layer and
- a barrier layer
- wherein the barrier layer comprises:
- a water-soluble polymer and
- a salt
- wherein the barrier layer is free of a synthetic surface sizing agent.
3 more elements
Dependencies are inferred from the claim text.