Flame-retardant polycarbonate-polyester compositions

Abstract

Compositions comprising A) at least one polymer selected from the group consisting of aromatic polycarbonate and aromatic polyestercarbonate, B) at least one polyester, wherein the polyester is derived from succinic acid and optionally further dicarboxylic acids and aliphatic, cycloaliphatic, araliphatic diols or aromatic diols, C) at least one cyclic phosphazene of structure (IV) wherein R is in each case identical or different and represents an amine radical, in each case optionally halogenated C1- to C8-alkyl, C1- to C8-alkoxy in each case optionally alkyl- and/or halogen-substituted C5- to C6-cycloalkyl, in each case optionally alkyl- and/or halogen- and/or hydroxyl-substituted C6- to C20-aryloxy, in each case optionally alkyl- and/or halogen- and/or bromine-substituted C7- to C12-aralkyl, a halogen radical or an OH radical, k is a whole number from 1 to 10 D) optionally graft polymer, E) optionally vinyl (co)polymer and/or polyalkylene terephthalate, F) optionally additives and also the use of these flame-retarded polycarbonate/polyester compositions for producing molded articles and the molded articles themselves, wherein the polyester in the composition can be obtained or prepared preferably from renewable raw materials.

Dependencies are inferred from the claim text.