Clear Ternary Blends of Polycarbonate with an Aliphatic Polyester and an Aromatic-Aliphatic Polyester

The present disclosure relates to clear polymer blends comprising an aromatic-aliphatic polyester comprising terephthalic acid, 2,2,4,4-tetramethyl-1,3-cyclobutanediol, and 1,4-cyclohexanedimethanol or ethylene glycol, an aliphatic polyester comprising 1,4 cyclohexane dicarboxylic acid and 1,4 cyclohexanedimethanol, and a polycarbonate comprising 4,4′-isopropylidenediphenol (bisphenol A). The compositions of the present disclosure have a certain combination of two or more properties of clarity, heat resistance, high glass transition temperatures, chemical resistance, toughness, miscibility, and/or good flowability, while retaining processability, which allow them to be easily formed into items, for example, molded articles, films, and fibers.