Processing of weatherable poly(carbonate-co-monoarylate)s with balanced flow and impact properties

A polycarbonate composition consisting essentially of, based on the total weight of the composition

• 35 to 98 wt % of a poly (carbonate-co-monoarylate ester) comprising aromatic carbonate units, monoaryl carbonate units, or a combination thereof and monoaryl ester units, and optionally aromatic ester units;
• 2 to less than 50 wt % of a poly (ester) composition comprising, based on the total weight of the composition
• greater than 20 to less than 50 wt % of poly (ethylene terephthalate), or
• 2 to less than 50 wt % of a poly (ester) different from poly (ethylene terephthalate), or
• a combination of 1-49 wt % of poly (ethylene terephthalate) and 1-49 wt % of a poly (ester) different from poly (ethylene terephthalate);
• 1 to 50 wt % of a homopolycarbonate, a poly (aliphatic ester-carbonate), or a combination thereof;
• optionally, 0.001 to 10 wt % of an additive composition,
• optionally, 0.5 to 6 wt % of an organophosphorous flame retardant.