Multi-layered storage container
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United States of America Patent
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Dec 22, 1998
Grant Date -
N/A
app pub date -
Jun 5, 1995
filing date -
Jun 5, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
One aspect of the present invention reveals a multi-layered storage container that changes color in response to acid gases. The storage container is comprised of at least one layer of a plastic and at least one layer of a gas-barrier polymer. Furthermore, the multi-layered storage container is provided with a color-changing indicator to show the presence of acidic gases. The other aspect of the present invention reveals a diaper which, as the result of chemical and/or electrical processes, can indicate when the diaper is wet.
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