Laminated packaging material, method of manufacturing of said laminated material and packaging containers produced therefrom
AssigneeTetra Laval Holdings & Finance S.A.
InventorsNils Toft, Ion Postoaca
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Abstract
The invention relates to a laminated packaging material comprising a core layer of paper or paperboard and a gas barrier layer of a polyarmide blend including a condensation polymer of metaxylene diamine and adipic acid (Nylon-MXD6) and a second crystalline or semicrystalline polyamide, applied on one side of the core layer by means of co-extrusion coating. The invention also relates to a method of producing the laminated packaging material and to a packaging container which is produced from the laminated packaging material.
Claims19
A laminated packaging material comprising a core layer of paper or paperboard and a gas barrier layer of polyamide, including a condensation polymer of metaxylene diamine and adipic acid (Nylon-MXD6), applied on one side of the core layer together with at least one layer of heat sealable plastics by means of co-extrusion coating, wherein the gas barrier layer is a polyamide blend including Nylon-MXD6 and a second crystalline or semi-crystalline polyamide.
Dependencies are inferred from the claim text.