Patent ID: 8461249

Claim:
A composition comprising: a flame retardant; and a polycarbonate, wherein the polycarbonate comprises a repeating structural backbone of the following formula wherein at least 60 percent of the total number of R 1 groups contain aromatic groups and the balance thereof are aliphatic or alicyclic groups; wherein the polycarbonate was formed in the presence of an end-capping agent and the end-capping agent is not cyanophenol; wherein the polycarbonate has a branching level of at least about 2%; wherein the polycarbonate has a weight average molecular weight of between about 20,000 g/mole to 54,843 g/mole as measured by gel permeation chromatography using polycarbonate standards; and wherein the polycarbonate has a peak melt viscosity of at least 25,000 poise when measured using a parallel plate melt rheology test at a heating rate of 10° C./min at a temperature of between about 350° C. to about 450° C. at a frequency of 3 rad/s and strain amplitude of 9%; and wherein a molded article of the composition has a UL94 V0 rating at a thickness of 1.0 mm.