Patent ID: 8106126

Claim:
A composition comprising a blend of: 20 to 90 wt. % of a polycarbonate component comprising from 20 to 40 mole percent of first arylate carbonate units of formula (1) wherein R f is a halogen atom, a C 1-10 hydrocarbon, or a halogen-substituted C 1-10 hydrocarbon and u is 0 to 4, from 20 to 40 mole percent of second arylate carbonate units of formula (1) different from the first arylate carbonate units, and from 20 to 40 mole percent of carbonate units of the formula (3) wherein R 1 is not of formula (1) and at least 60% of the R 1 groups are C 6-30 aromatic groups; and 10 to 80 wt. % of a polyester comprising units of the formula wherein T is a divalent residue derived from a C 5 -C 7 cycloaliphatic or C 7 -C 12 aromatic dicarboxylic acid or a chemical equivalent thereof, and D is a divalent residue derived from a C 6 -C 12 aromatic or C 2 -C 12 aliphatic diol or a chemical equivalent thereof, provided that less than 50 mole percent of D is derived from 1,4-cyclohexanedimethanol or a chemical equivalent thereof; wherein the weight percent of the polycarbonate and the polyester are each based on the total weight of the polycarbonate and the polyester, and a molded sample of the composition having a thickness of 2.5 mm has a luminous transmittance of greater than or equal to 80% and a haze of less than 20% when measured in accordance with ASTM D 1003.