Patent ID: 8703855
Filing Date: 2014-04-22
Classification: C08K,C08L

Abstract:
1. A composition comprising, based on the total weight of the composition: a polycarbonate that is not a polysiloxane block-co-polycarbonate; 7.5 to 25 wt % of a polysiloxane block co-polycarbonate; 5 to 15 wt % of a transition metal oxide comprising at least one of chromium dioxide and titanium dioxide; optionally a brominated organic flame retardant effective to provide 2 to 6 wt % of bromine atoms; optionally 0.1 to 0.5 wt % of a fluorinated polyolefin; optionally an additive that imparts a desired performance property; and optionally a carbon black containing material, wherein the polysiloxane block co-polycarbonate is derived from Bisphenol-A or a dihydroxy aromatic compound, and a polysiloxane bisphenol having the structure 3: wherein each R is independently a C wherein the composition has a notched izod impact at −30° C. of at least 35 kJ/m