DIMENSIONALLY STABLE MULTI-LAYER POLYESTER FILMS
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United States of America Patent
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Issued Date -
May 1, 2014
app pub date -
Jun 29, 2012
filing date -
Jun 30, 2011
priority date (Note) -
Abandoned
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Abstract
A multi-layer biaxially oriented film comprising a first layer (A) comprising an aromatic polyester (a) and a second layer (B) comprising a polyolefin (b) having a melting point of from 230 to 290° C. wherein said polyolefin is a styrene polymer, and an adhesive interlayer (C) between a layer (A) and a layer (B), wherein said adhesive interlayer (C) comprises a tie-layer material (c) selected from anhydride-modified ethylene copolymers in which the proportion of anhydride present in the copolymer is no more than 3.0% by weight of the polymer, and in which the ethylene copolymer comprises one or more additional comonomers other than styrene.
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