Patent ID: 8114952
Filing Date: 2012-02-14
Classification: C08L,Y10T

Abstract:
1. A composition comprising a blend of: 50 to 90 wt. % of a polycarbonate copolymer comprising wherein R wherein R 1 is not of formula (1) and at least 60% of the R 1 groups are divalent C 6-30 aromatic groups; and 10 to 50 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 copolymer and the polyester are each based on the total weight of the polycarbonate copolymer and the polyester, and a molded sample of the composition having a thickness of 2.5 mm has a luminous transmittance of greater than 80% and a haze of less than 20% when measured in accordance with ASTM D 1003.