Patent ID: 6939905

Claim:
A molding composition consisting of (i) at least one branched or linear polycarbonate derived from at least one compound selected from a the group consisting of resorcinol, dihydroxydiphenols, bis-(hydroxyphenyl)-C 1 -C 5 -alkanes, bis-(hydroxyphenyl)-C 5 -C 6 -cycloalkanes, bis-(hydroxyphenyl) ethers, bis-(hydroxyphenyl) sulfoxides, bis-(hydroxyphenyl) ketones, bis-(hydroxyphenyl)-sulfones and α,α-bis-(hydroxyphenyl)-diisopropyl-benzenes, said polycarbonate having relative solution viscosity ≧1.30 (measured at 25° C. in methylene chloride and in a concentration of 0.5 g/100 ml), (ii) at least one impact modifier, (iii) at least one halogen-free phosphorus-containing flameproofing agent selected from the second group consisting of compounds conforming to (A) and (B) wherein (A) is and (B) is wherein R 1 , R 2 , R 3 and R 4 are each independently of the others C 1 - to C 8 -alkyl, or C 5 - to C 6 -cycloalkyl, C 6 - to C 20 -aryl or C 7 - to C 12 -aralky each optionally substituted by alkyl, n are each independently of the others 0 or 1, N represents a number from 0.7 to 5, X represents a mono- or poly-nuclear aromatic radical having from 6 to 30 carbon atoms, or linear or branched aliphatic radical having from 2 to 30 carbon atoms which may be OH-substituted and contain up to 8 ether bonds, q independently one of the others denotes 0,1, 2, 3 or 4, R 5 and R 6 independently one of the other denote C 1 C 4 -alkyl, and Y represents C 1 -C 7 -alkylidene, C 1 -C 7 -alkylene, C 5 -C 12 -cycloalkyl C 5 -C 12 -cycloalkylidene, —O—, —S—, —SO—, SO 2 or —CO—, and optionally (iv) one or more members selected from the third group consisting of anti-dripping agent, lubricant and mold-release agent, nucleating agent, antistatic, stabilizer, coloring agent and pigment, said composition characterized in its UL 94 V-0 flammability rating at wall thicknesses ≦1.5 mm and a melt viscosity, measured at 260° C. and a shear rate of 100 s −1 , of ≧600 Pa s.