Polyester resin blends with high-level gas barrier properties
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United States of America Patent
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Nov 15, 2011
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app pub date -
Nov 17, 2008
filing date -
Jun 11, 1998
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Abstract
Compositions comprising a polyester resin and a polyamide derived from a dicarboxylic acid with 6-22 carbon atoms and from m-xylylene diamine having high-level gas barrier properties, obtained by mixing in the melted state the polyester resin premixed with a dianhydride of a tetracarboxylic acid and the polyamide, operating under conditions such as to render the polymeric components theologically rheologically compatible with each other. The compositions are suitable for preparing containers and biaxially-orientated films.
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