Multi-layer laminated film
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United States of America Patent
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Dec 27, 2016
Grant Date -
Mar 5, 2015
app pub date -
Mar 13, 2013
filing date -
Mar 16, 2012
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Abstract
A multi-layer laminated film includes layers composed using a thermoplastic resin A and layers composed using a thermoplastic resin B, which A layers and B layers are alternately laminated in 51 or more layers, wherein the film has: a heat shrinkage stress of 0.5 MPa to 5 MPa at 150° C. in the longitudinal and width directions of the film; and a heat shrinkage stress kick-off temperature of 110° C. or lower in at least one of the longitudinal and width directions of the film.
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