FLEXIBLE, SELF-VENTING RETORTABLE CONTAINER
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United States of America Patent
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Issued Date -
Feb 28, 2013
app pub date -
Aug 25, 2011
filing date -
Aug 25, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Containers are disclosed, as well as multilayer films used in such containers, which advantageously maintain a high seal strength even after being subjected to retort conditions for sterilization. These retortable containers and multilayer films are also beneficially self-venting upon exposure to microwave heating, when the internal container pressure exceeds a threshold value. The self-venting nature of these containers arises from particular sealing characteristics, in which the seal width differs in defined, self-venting seal regions, relative to non-venting seal regions of a given peripheral seal. Particular structural features and geometries of the self-venting seal regions can be used to improve the location of venting and control of the vented gases.
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