Polyester resin blends with high-level gas barrier properties

Details Polyester resin blends with high-level gas barrier properties Polyester resin blends with high-level gas barrier properties

C - Chemistry, Metallurgy

08

L

C08L 77/06 (2006.01) C08J 5/00 (2006.01) C08J 5/18 (2006.01) C08K 5/1539 (2006.01) C08L 67/02 (2006.01) C08G 63/80 (2006.01)

Patent

CA 2273701

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 rheologically compatible each other. The compositions are suitable for preparing containers and biaxially--orientated films.

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