Patent ID: 8093316

Claim:
A polymer blend comprising a mixture of: (A) at least one polyester prepared by the reaction of at least one diol with at least one dicarboxylic acid or dialkyl ester thereof in the presence of a metallic catalyst; (B) at least one phosphorus-containing compound; (C) at least one hindered amine light stabilizer; and (D) at least one polycarbonate, wherein the phosphorus-containing compound is selected from the formulas (1)-(6): wherein R 1 , R 2 and R 3 are independently selected from the group consisting of C 1 -C 22 -alkyl, substituted C 1 -C 22 -alkyl, C 3 -C 8 -cycloalkyl, substituted C 3 -C 8 -cycloalkyl, and heteroaryl; R′ is selected from the group consisting of halogen and OR 1 ; R″, R 4 , R 5 , R 6 , and R 7 are independently selected from the group consisting of hydrogen, C 1 -C 22 -alkyl, substituted C 1 -C 22 -alkyl, C 3 -C 8 -cycloalkyl, substituted C 3 -C 8 -cycloalkyl, heteroaryl, and aryl; and each Q 1 , Q 2 and Q 3 group independently is radical A, wherein radical A has the following structure: