Patent ID: 8399546

Claim:
A thermoplastic composition, comprising: from 40 to 90 wt. % of a polycarbonate resin; from 1 to 35 wt. % of an impact modifier; from 0.5 to 30 wt. % of a polysiloxane-polycarbonate copolymer comprising from 8 to 30 wt. % polydimethylsiloxane units or the equivalent molar amount of other diorganosiloxane units; from about 8.0 to about 15.0 wt. % of a phosphorus-containing flame retardant, wherein the phosphorus-containing flame retardant comprises resorcinol tetraphenyl diphosphate or bisphenol A bis(diphenyl)phosphate; and from 5 to 20 wt. % of metal fiber, each based on the total combined weight of the thermoplastic composition, wherein a molded sample of the thermoplastic composition having a thickness of 3.0 mm (±10%) has an EMI shielding of at least 20 dB and wherein a molded sample of the thermoplastic composition is capable of achieving UL94 V0 or V1 rating at a thickness of 1.5 mm (±10%).