COPOLYESTERIMIDES DERIVED FROM N,N'-BIS-(HYDROXYALKYL)-PYROMELLITIC DIIMIDE AND FILMS MADE THEREFROM
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United States of America Patent
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May 5, 2016
app pub date -
Jun 5, 2014
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Jun 7, 2013
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Abstract
A polyester film comprising a copolyester which comprises repeating units derived from an aliphatic glycol, an aromatic dicarboxylic acid, and the monomer of formula (I): wherein n=2, 3 or 4, and wherein comonomer (I) constitutes a proportion of the glycol fraction of the copolyester.
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