| 摘要 |
<p>Containers 10 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 12A, relative to non-venting seal regions 12B of a given peripheral seal 12. 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.</p> |
