HEAT SEALABLE FOOD PACKAGING FILMS, METHODS FOR THE PRODUCTION THEREOF, AND FOOD PACKAGES COMPRISING HEAT SEALABLE FOOD PACKAGING FILMS
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United States of America Patent
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N/A
Issued Date -
Sep 13, 2012
app pub date -
Feb 28, 2012
filing date -
Mar 11, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Heat sealable food packaging films, methods for the production thereof, and food packages comprising heat sealable food packaging films are provided. The heat sealable food packaging film includes a humidity-dependent permeable film having a moisture vapor transmission rate that increases with an increase in relative humidity (RH). An outer coating comprises a coating material on at least one surface of the humidity-dependent permeable film. The coating material is selected from a nanoclay dispersed in a poly-vinylidene chloride (PVdC) polymer or a stretchable urethane polymer, a stretchable acrylic polymer, or a combination of stretchable urethane polymer and stretchable acrylic polymer. The coating material may further comprise an anti-blocking agent. The heat sealable food packaging film is biaxially oriented.
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