Patent ID: 8034866

Claim:
A composition comprising, based on the total weight of the composition: from 10 to 80 wt. % of a polyester comprising units of the formula wherein T is a divalent group selected from the group consisting of C 5-7 cycloaliphatics groups, C 6-12 aromatic groups, and combinations thereof, and D is a divalent group selected from the group consisting of C 6-12 cycloaliphatic groups, C 2-12 aliphatic groups, and combinations thereof; from 10 to 80 wt. % of a polycarbonate; from 0 to 20 wt. % of an impact modifier; from 2 to less than 25 wt. % of a reinforcing filler; from 0.1 to less than 2.5 wt. % of a fibrillated fluoropolymer; from 0 to 5 wt. % of an additive selected from the group consisting of antioxidants, mold release agents, colorants, quenchers, stabilizers, and combinations thereof; wherein the composition has a heat deflection temperature of at least 110° C., measured in accordance with to ASTM D648 on 3.2 mm thick molded bars at 0.455 MPa; wherein the composition exhibits an improved Notched Izod impact strength that is at least 20% more than the Notched Izod impact strength of an identical composition without the fibrillated fluoropolymer, wherein the Notched Izod impact strength is measured in accordance with ASTM D256 at 23° C. on 3.2 mm thick bars; and the composition has a flexural modulus that is higher or within 5% of the flexural modulus of an identical composition without the fibrillated fluoropolymer, wherein flexural modulus is measured in accordance with ASTM D790 at 23° C.