Patent ID: 8338533

Claim:
A composition comprising: A) from 60 to 86 parts by weight, based on the sum of components A+B+C, of an aromatic polycarbonate and/or an aromatic polyester carbonate, B) from 4 to 12 parts by weight, based on the sum of components A+B+C, of a graft polymer comprising B.1 from 10 to 50 wt. %, based on the graft polymer B, of a shell of at least one vinyl monomer, and B.2 from 90 to 50 wt. %, based on the graft polymer B, of a graft base of a silicone-acrylate composite rubber, wherein the silicone-acrylate composite rubber comprises an interpenetrating network of silicone rubber and acrylate rubber, C) from 10 to 30 parts by weight, based on the sum of components A+B+C, of a polymer or copolymer based on a vinyl monomer, and D) from 0 to 20 parts by weight of at least one polymer additive, based on the sum of components A+B+C, wherein components B and C are present in a ratio of the parts by weight of B:C in a range from 1:1.3 to 1:3.5, and wherein the composition is free of inorganic filler, and wherein the composition does not display a splintering fracture in a multiaxial dart-penetration test at −10° C., has a melt viscosity at 260° C. and a shear rate of 1000 s −1 of not more than 250 Pas, and exhibits a Vicat B120 heat distortion resistance temperature of at least 125° C.