Biodegradable paperboard laminate structure
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United States of America Patent
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May 25, 1993
Issued Date -
N/A
app pub date -
Sep 19, 1991
filing date -
Apr 4, 1990
priority date (Note) -
Expired
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Abstract
The present invention relates to a biodegradable paperboard-based package for various food products. The package utilizes a novel heat-sealable laminate structure wherein the exterior gloss heat-sealable layer is a degradable polymeric resin material such as a polyvinyl alcohol resin or a starch based low density polyethylene polymer resin. Utilization of the material in a novel fashion accelerates the paperboard substrate's degradative properties and tendencies.
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