Patent ID: 7297736

Claim:
A clear polymer blend comprising: (A) about 1 to 99 percent by weight of at least one polycarbonate (A) comprising: (1) a diol component comprising about 90 to 100 mole percent 4,4′-isopropylidenediphenol residues, and (2) 0 to about 10 mole percent modifying diol residues; wherein the total mole percent of diol residues is equal to 100 mole percent; and (B) about 99 to 1 percent by weight of at least one polyester (B) comprising (1) diacid residues comprising about 70 to 100 mole percent dicarboxylic acid units selected from the group consisting of terephthalic acid residues, isophthalic acid residues, or mixtures thereof; and 0 to about 30 mole percent of modifying dicarboxylic acid residues having about 2 to 20 carbons, wherein the total mole percent of diacid residues is equal to 100 mole percent; and (2) diol residues comprising about 40 to 99.9 mole percent 1,4-cyclohexanedimethanol residues, 0.1 to about 60 mole percent neopentyl glycol residues, 0 to about 10 mole percent modifying diol residues having 3 to 16 carbons, and 0 mole percent ethylene glycol residues, wherein the total mole percent of diol residues is equal to 100 mole percent; and wherein the total weight percent of said polycarbonate (A) and polyester (B) is equal to 100 weight percent.