SHRINK FILM AND CYLINDRICAL SHRINK LABEL
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United States of America Patent
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Issued Date -
Nov 4, 2010
app pub date -
Dec 25, 2008
filing date -
Dec 27, 2007
priority date (Note) -
Abandoned
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Abstract
[Object] To provide a multilayer shrink film which is composed of different polymers, i.e., a polypropylene resin and an aromatic polyester resin and which does not suffer from delamination even in a center-sealed portion during shrinking process; and a cylindrical shrink label using the shrink film.[Solving Means] The shrink film has a multilayer structure including layers A, B, and C in the order of (layer A)/(layer B)/(layer C) without the interposition of any other layer, in which the layer A is a resin layer mainly containing a modified aromatic polyester resin; the layer B is an intermediate layer mainly containing an ethylene-vinyl acetate resin and having a vinyl acetate component content of 20 to 30 percent by weight; and the layer C is a resin layer mainly containing a polypropylene resin.
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