Packaging material and packaging containers produced therefrom

Details Packaging material and packaging containers produced therefrom Packaging material and packaging containers produced therefrom

1995-07-10

1997-08-05

Nold, Charles

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428516, 428500, 525240, B65D 6540, B32B 2708

Patent

active

056540515

ABSTRACT:
A packaging material is disclosed for producing dimensionally stable, liquid-tight packaging containers for liquid foods.
The packaging material (10) has a core layer (11) of thermoplastic and filler admixed into the thermoplastic in a quantity of between 30 and 70% of the total weight of the packaging material.
The thermoplastic in the core layer (11) consists of a mixture of a first thermoplastic which may be a propylene homopolymer or an ethylene/propylene copolymer, and a second thermoplastic which is a polyethylene. The quantity of said polyethylene is between 5 and 50% of the total thermoplastic quantity of the core layer.
From a web or a sheet of the packaging material, dimensionally stable, liquid-filled packaging containers can be produced by fold forming and heat sealing in a conventional manner. Such packaging containers can also be produced using other conventional techniques such as blow moulding and thermoforming.

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