Heat-shrinkable polyester film and process for producing the same
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United States of America Patent
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Dec 11, 2012
Grant Date -
Oct 7, 2010
app pub date -
Dec 11, 2008
filing date -
Dec 13, 2007
priority date (Note) -
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Abstract
A heat-shrinkable polyester film is provided which exhibits a high shrinkability in a high-temperature range with a main shrinking direction oriented in a longitudinal direction thereof, though not shrinking in the longitudinal direction in a low-temperature range, possesses an extremely high mechanical strength in a transverse direction orthogonal to the main shrinking direction, and, in particular, can be utilized suitably as a film for forming a jacket label of a battery or in similar applications.
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