Patent ID: 8674008
Filing Date: 2014-03-18
Classification: C08K,C08L,H01B

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; 2 to 30 wt % of a brominated organic flame retardant or a halogen organic flame retardant compound; optionally 0 to 3 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 a C 1 -C 30 aliphatic or an aromatic group or a combination of said aliphatic or said aromatic groups, each R 3 is independently a divalent C 2-8 aliphatic group, M is the same or different, and is a halogen, cyano, nitro, C 1-8 alkylthio, C 1-8 alkyl, C 1-8 alkoxy, C 2-8 alkenyl, C 2-8 alkenyloxy group, C 3-8 cycloalkyl, C 3-8 cycloalkoxy, C 6-10 aryl, C 6-10 aryloxy, C 7-12 arylalkyl, C 7-12 arylalkoxy, C 7-12 alkylaryl, or C 7-12 alkylaryloxy, wherein each n is independently 0, 1, 2, 3, or 4, wherein E is an average value of 20 to 100, wherein the composition has a notched izod impact at −30° C. of at least 35 kJ/m