Patent ID: 8404338

Claim:
An article comprising a thermoplastic composition comprising: a) 5 to 100 parts by weight polysiloxane-polycarbonate, b) 0 to 95 parts by weight polycarbonate, based on combined 100 parts by weight of polysiloxane-polycarbonate and polycarbonate, and c) 0.01 to 10 parts by weight, based on a combined 100 parts by weight of polysiloxane-polycarbonate and polycarbonate, of an X-ray contrast agent comprising X-ray scattering atoms having an atomic number of greater than or equal to 22, wherein the thermoplastic composition has a siloxane content of 1 to 4 wt %, based on the total weight of the thermoplastic composition, wherein an article molded from the thermoplastic composition and having a thickness of 3.2 mm has a notched Izod impact (NII) strength of greater than or equal to about 620J/m, when measured at a temperature of 0° C. according to ASTM D256-04, or a notched Izod impact strength of greater than or equal to about 409 J/m, when measured at a temperature of −30° C. according to ASTM D256-04, wherein an article molded from the thermoplastic composition and having a thickness of 3.2 mm has an Equivalent Al Thickness of greater than 0.51 mm, when irradiated with 50 kV X-ray radiation, and wherein for melt volume rates of the thermoplastic composition determined under a load of 1.2 kg at a temperature of 300° C. according to ASTM D123 8-04, a melt volume rate measured at a dwell time of 18 minutes increases relative to a melt volume rate measured at a dwell time of 6 minutes by less than or equal to 31%, wherein the X-ray contrast agent has a median particle size of greater than 0.1micrometers to 5 micrometers.