THERMOPLASTIC COMPOSITION, METHOD OF MAKING, AND ARTICLES FORMED THEREFROM

摘要

A thermoplastic composition is disclosed, comprising: a polymer component comprising a polyestercarbonate copolymer comprising ester units of the formula (I), wherein each D and T is the same or different and is independently a divalent C<SUB>6-30</SUB> aromatic organic group; and carbonate units of the formula (II), wherein at least about 60 percent of the total number of R<SUP>1</SUP> groups are a divalent C<SUB>6-36</SUB> aromatic organic group, and the balance thereof are C<SUB>1-36</SUB> aliphatic, C<SUB>5-36</SUB> alicyclic, or C<SUB>6-36</SUB> aromatic organic groups; and 0.01 to 10 wt.%, based on the total weight of the polymer component, of a polymeric compound comprising at least two epoxy groups, wherein the polymeric compound has a weight average molecular weight of 1,500 to 18,000; wherein a test article having a thickness of 3.2 mm and molded from the thermoplastic composition retains more ductility after aging at 134°C and 100% humidity for 48 hours than an article having a thickness of 3.2 mm and molded from the same thermoplastic composition without the polymeric compound comprising at least two epoxy groups, each measured in accordance with ASTM D3763-02.