Nestable foam cup with improved heat retention and the process for its manufacture
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United States of America Patent
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-
Nov 16, 1982
Issued Date -
N/A
app pub date -
Dec 4, 1980
filing date -
Sep 15, 1978
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A thermoformed polymeric foam article, such as a cup or container, is disclosed having improved thermal insulation properties. Contact with hot water causes expansion of the foam wall, substantially decreasing foam density and providing greater heat retention.
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Cited Art Landscape
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