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US 10,328,666 B2Granted
Packaging material and packaging container
AssigneeTetra Laval Holdings & Finance S.A.
InventorsUlf Nyman, Mats Aldén, Nils Toft
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Abstract
Described herein are laminated packaging materials comprising foamed cellulose, their use in manufacturing packaging containers, for use in packaging of food products.
Claims16
A packaging material for a packaging container, comprising:
- a decor layer configured to cover a printed pattern, the decor layer comprising a thermoplastic material and arranged to be an outermost layer of the packaging container;
- a bulk layer having a density of less than 700 kg/m3 and comprising foamed cellulose, wherein the foamed cellulose comprises at least 25% of a thickness of the bulk layer;
- a barrier layer configured to prevent gas from passing therethrough;
- and
- a heat-sealable layer comprising at least one of heat-sealable adhesive polymers and heat-sealable polyolefins;
- wherein the bulk layer is positioned between the decor layer and the barrier layer, and wherein the barrier layer is positioned between the bulk layer and the heat-sealable layer.
3 more elements
Dependencies are inferred from the claim text.