Multilayer, heat-shrinkable film comprising a plurality of microlayers
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United States of America Patent
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Apr 2, 2013
Grant Date -
Oct 25, 2012
app pub date -
Jun 28, 2012
filing date -
Mar 6, 2009
priority date (Note) -
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Abstract
A multilayer, heat-shrinkable film generally includes at least one bulk layer and a microlayer section comprising at least 10 microlayers, each of which has a thickness ranging from about 0.001 to 0.015 mil. The ratio of the thickness of any of the microlayers to the thickness of the bulk layer is at least about 1:2. The film has a total free shrink (ASTM D2732-03) of at least about 10% at 200° F.
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