Patent ID: 8883878

Claim:
A thermoplastic resin composition comprising: from 50 to 89.5 wt. % of an aromatic polycarbonate wherein the molecular weight of the polycarbonate is at least 50,000 g/mol based on polystyrene calibration standards; from 0.5 to 20 wt. % of an impact modifier; from 0 to 25 wt. % of an aromatic vinyl copolymer; from 8 to 25 wt. % of talc; and from 4 to 16 wt. % of a titanium dioxide coated with a surface treatment consisting of alumina and a polysiloxane, wherein the coated titanium dioxide has a bulk density of 700 g/m 2 , an oil absorption of 13 as measured using ISO 787/5 and a titanium dioxide content of greater than or equal to 96%, and wherein the composition has an increased Notched Izod impact strength at 23° C. as compared to a thermoplastic resin composition having the same composition but with a titanium dioxide coated with a surface treatment consisting of aluminum, silicon, polysiloxane and polyalcohol compounds and having a bulk density of 900 g/m 2 , an oil absorption of 14 as measured using ISO 787/5 and a titanium dioxide content of greater than or equal to 96%; wherein the wt % is based on the total weight of the composition.