Flexible laminated packaging material comprising metallized intermediate layer
AssigneeChampion International Corporation
InventorNathan Stillman
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Abstract
A laminated packaging film useful in producing such items as containers or pouches for liquid or semi-liquid matter, comprises an outer web of balanced biaxially-oriented thermoplastic material, a middle web of metallized thermoplastic material and an inner web of heat-sealable polyolefin. A vinylidene chloride polymer coating is provided on at least one of the outer or middle web. The pouches and containers formed by this film are exceptionally strong, durable and flexible.
Claims10
A composite, flexible packaging film consisting essentially of an outer web of a balanced biaxially-oriented polyamide;
- a middle web of metallized thermoplastic material,
- an inner web of heat-sealable polyolefin;
- and
- at least one of said outer and middle webs having a vinylidene chloride polymer coating thereon.
A composite, flexible packaging film consisting essentially of an outer web of balanced biaxially oriented thermoplastic material;
- a middle web of metallized polyester material;
- an inner web of heat-sealable polyolefin;
- and at least one of said outer and middle webs having a vinylidene chloride polymer coating thereon.
Dependencies are inferred from the claim text.