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Abstract

Provided are a polycarbonate-based resin composition that brings together an excellent impact strength and excellent flame retardancy and a molded article thereof. The polycarbonate-based resin composition is a polycarbonate-based resin composition, including, with respect to 100 parts by mass of (A) a resin mixture formed of 30 to 100 mass % of (A-1) a polycarbonate-polyorganosiloxane copolymer which has a constituent unit represented by a general formula (I) and a constituent unit represented by a general formula (II), and in which an average number of repetitions of the constituent unit represented by the general formula (II) is 30 to 500, and 70 to 0 mass % of (A-2) an aromatic polycarbonate resin except the polycarbonate-polyorganosiloxane copolymer, 0.01 to 0.15 part by mass of (B) an alkali metal salt and/or alkaline earth metal salt of an organosulfonic acid, and 0.1 to 1 part by mass of (C) a mixed powder formed of polytetrafluoroethylene particles and organic polymer particles, in which: a content of a polyorganosiloxane block moiety formed of the constituent unit represented by the general formula (II) in the resin mixture (A) is 2 to 30 mass %; and the composition is free of an organohalogen-based flame retardant and an organophosphate-based flame retardant.

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First Claim