Packaging material with a foamed polyolefin layer
AssigneeCovenience Food Systems B.V.
InventorsUlrich Reiners, Michel Pittet
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Abstract
The invention relates to a multilayer film comprising the following sequence of layers: A) a basis layer of polyolefin foam, B) a layer based on at least one of the polyolefins of the foam layer A), C) optionally a tie layer based on a polyolefin, D) optionally an adhesive layer, E) optionally a gas- and/or flavortight barrier layer, F) an adhesive layer, G) an optionally sealable and/or peelable surface layer, whereby the total thickness of layers A) and B) ranges from 0.5 to 2 mm and the thickness of layer B) ranges from ⅙ to ½ of the thickness of layer A).
Claims20
A multilayer film comprising the following sequence of layers:
- A) a base layer of foamed propylene homopolymers, copolymer or mixtures thereof,
- B) a layer comprising at least one of the propylene homopolymers or copolymers of the foam layer A,
- C) optionally a tie layer based on a polyolefin
- D) optionally an adhesive layer
- E) optionally a gas barrier layer, a flavortight barrier layer, or both,
- F) an adhesive layer,
- G) an optionally sealable or peelable surface layer,
- whereby the total thickness of layers A and B ranges from 0.5 to 2 mm and the thickness of layer B ranges from ⅙ to ½ of the thickness of layer A.
Dependencies are inferred from the claim text.