Patent ID: 7691304
Filing Date: 2010-04-06
Classification: C08K,C08L,Y10T

Abstract:
1. A composition, based on the total weight of polymer components in the composition, comprising a transparent blend of: (a) from 10 to 80 wt. % of a polyester comprising units of the formula wherein T is a residue derived from cyclohexanedicarboxylic acid, terephthalic acid, isophthalic acid, a chemical equivalent of the foregoing, or a combination thereof, and D is a residue derived from a C 6 -C 12 aromatic or C 2 -C 12 aliphatic diol or chemical equivalent; (b) from more than 0 to 60 wt. % of a polycarbonate comprising units of the formula wherein each R 1 is independently a divalent organic radical, and at least about 60% of the organic radicals are aromatic; and (c) from 10 to 90 wt. % of at least one polyester-polycarbonate copolymer comprising, based on the total weight of the copolymer, from 15 to 95 wt. % of arylate ester units of the formula wherein each R 4 is independently halogen or C 1-4 alkyl and p is 0 to 3, and from 5 to 85 wt. % of aromatic carbonate units of the formula wherein each R 1 is independently a divalent organic radical, and at least about 60% of the organic radicals are aromatic, and further wherein the polyester-polycarbonate copolymer comprises terminal groups derived from reaction with a phenolic compound the formula wherein each R 5′ is independently halogen, C 1-22 alkyl, C 6-10 aryl, C 7-22 alkylaryl, C 7-22 arylalkyl, or C 1-22 alkoxy, and q is 0 to 4.