Polymer Film, a Packaging Laminate Comprising the Polymer Film, a Packaging Container Formed from the Packaging Laminate and a Process for the Production of the Polymer Film
AssigneeTetra Laval Holdings & Finance S.A.
InventorsAndre Chiquet, Bertrand Jaccoud, Pierre Fayet
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Abstract
A polymer film comprising a gas barrier coating of SiOx directly coated onto a first side of a polymer carrier layer. The film also comprises a heat sealable polyolefin layer arranged on a second side of the polymer carrier layer. The invention also relates to a packaging laminate comprising the polymer film and to a packaging container produced from such a packaging laminate. The invention further relates to a process for the production of the polymer film.
Claims41
A polymer film comprising a gas barrier coating of SiOx directly coated onto a first side of a polymer carrier layer, and a heat sealable polyolefin layer arranged on a second side of said polymer carrier layer.
A packaging laminate 4 comprising a film that comprises a gas barrier coating of SiOx directly coated onto a first side of a polymer carrier layer said film also comprising a heat sealable polyolefin layer arranged on a second side of said polymer carrier layer.
A process for the production of a polymer film comprising a gas barrier coating of SiOx, which process comprises:
- a) forming a polymer carrier layer and a heat sealable polyolefin layer, and joining the polymer carrier layer and the heat sealable polyolefin layer together to form an intermediate film;
- b) directly applying said coating of SiOx onto said polymer carrier layer to form said polymer film.
Dependencies are inferred from the claim text.