Patent ID: 7687557

Claim:
A polycarbonate composition comprising an aromatic polycarbonate resin having fluorinated carbonate end-groups, wherein the fluoroalkylene carbonate end-groups were formed from 2,2,3,4,4,4-hexafluorobutanol, wherein the 2,2,3,4,4,4-hexafluorobutanol is reacted with bisphenol-A and phosgene in the presence of an alkyl amine or a phase transfer catalyst in the presence of water and an organic solvent using a one-step interfacial method and further wherein the fluoroalkylene carbonate end groups comprise 90% or greater of the total end-groups of the aromatic polycarbonate resin, wherein the composition further comprises an FR additive, and wherein the FR additive is an alkali metal, alkali earth metal, tetraorganophosphonium or tetraoorganoammonium salt of a perfluorinated alkyl sulfonic acid.