BIAXIALLY ORIENTED POLYESTER FILM AND PREPARATION THEREOF
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United States of America Patent
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Issued Date -
Sep 24, 2009
app pub date -
Mar 22, 2005
filing date -
Sep 2, 2004
priority date (Note) -
Abandoned
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Abstract
A biaxially oriented polyester film of the present invention which comprises a polyester resin prepared by polymerizing a glycol component mainly comprising 1,3-propanediol and an acid component mainly comprising terephthalic acid or dimethyl terephthalate, said polyester film having an unit impact absorption energy of 1.0 or more, can be advantageously used for packaging.
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