Patent ID: 8617700

Claim:
A mold comprising a thermoplastic composition comprising: polysiloxane-polycarbonate, optionally, polycarbonate, and an X-ray contrast agent comprising X-ray scattering atoms having an atomic number of greater than or equal to 22, wherein each of the polysiloxane-polycarbonate, polycarbonate, and X-ray contrast agent are present based on a combined 100 parts by weight of polysiloxane-polycarbonate and polycarbonate, 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 620 J/m, when measured at a temperature of 0Â° 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 âˆ’30Â° C. according to ASTM D256-04, wherein the 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 a melt volume rate of the thermoplastic composition measured at a dwell time of 18 minutes increases relative to a melt volume rate of the thermoplastic composition measured at a dwell time of 6 minutes by less than or equal to 31%, wherein the melt volume rates are determined under a load of 1.2 kg at a temperature of 300Â° C. according to ASTM D1238-04, wherein the X-ray scattering agent has a particle size of less than about 5 micrometers, and wherein degradation of the mold is detectable via X-ray.