Retortable/peelable film
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United States of America Patent
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app pub date -
Apr 4, 2006
filing date -
Mar 12, 2003
priority date (Note) -
Abandoned
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Abstract
A material suitable for sealing plastic containers and used as a lid on a container for food is disclosed. The material comprises a substrate joined to a film comprising a mixture of a butene-1 polymer, polypropylene, an organic filler, and, optionally, high density polyethylene. The material is heat sealable, peelable and retains high burst strength both during and after retorting at elevated temperatures.
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