Thermally stable polymers, method of preparation, and articles made therefrom

   
   

The present invention provides compositions comprising (a) a thermally stable polymer comprising resorcinol arylate polyester chain members substantially free of anhydride linkages linking at least two mers of the polymer chain, and (b) at least one auxiliary stabilizer additive selected from the group consisting of 2,2'-(1,4-phenylene)bis(4H-3,1-benzoxazin-4-one) and 1,3-bis[(2-cyano-3,3-diphenylacryloyl)oxy]-2,2-bis[[(2-cyano-3,3-diphenyla cryloyl)oxy]methyl]propane. Both multilayer and unitary articles comprising the composition are also provided.

La presente invenzione fornisce le composizioni che contengono (a) un polimero termicamente stabile che contiene i membri della catena del poliestere del arylate della resorcina sostanzialmente esenti dai collegamenti dell'anidride che collegano almeno due mers della catena del polimero e (b) almeno un additivo ausiliario dello stabilizzatore scelto dal gruppo che consiste di 2,2'-(1,4-phenylene)bis(4H-3,1-benzoxazin-4-one) e del cryloyl)oxy]methyl]propane 1,3-bis[(2-cyano-3,3-diphenylacryloyl)oxy]-2,2-bis[[(2-cyano-3,3-diphenyla. Sia gli articoli a piĆ¹ strati che unitari che contengono la composizione inoltre sono forniti.

 
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