Patent ID: 8357441

Claim:
An ignition resistant carbonate polymer composition comprising: (i) an aromatic polycarbonate or an aromatic polyester carbonate, (ii) a graft polymer, (iii) optionally one or more thermoplastic vinyl (co)polymer, (iv) optionally one or more thermoplastic polyester polymer, (v) an aromatic phosphorous compound represented by the formula I: wherein, R 1 , R 2 , R 3 and R 4 independently of one another each denote optionally halogenated 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 -aralkyl, in each case optionally substituted by alkyl and/or halogen, X denotes a mono- or polynuclear aromatic radical having 6 to 30 C atoms, n independently of one another is 0 or 1, N represents values from 0 to 30, (vi) a mixture of a fibril forming polytetrafluoroethylene polymer and a fluorothermoplast, and (vii) optionally an hypophosphorous acid metal salt.