Patent ID: 8198371

Claim:
A polymer blend comprising: (a) 70 to 90 weight percent of a polyester comprising: (i) a dicarboxylic acid portion comprising residues of terephthalic acid, isophthalic acid, or both; and (ii) a glycol portion comprising 5 to 70 mole percent of 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCB) residues and 30 to 95 mole percent of 1,4-cyclohexanedimethanol (CHDM) residues; and (b) 10 to 30 weight percent of a copolymer comprising acrylonitrile, butadiene, and styrene (ABS) monomers, wherein the blend has a flexural modulus from about 5 to about 20% greater than the flexural modulus of the polyester, and wherein the blend has a melt viscosity from about 5 to about 20% less than the melt viscosity of the polyester.