A polycarbonate-polyorganosiloxane copolymer, a flame-retardant polycarbonate resin composition containing the same, and a molded product thereof

摘要

A polycarbonate-polyorganosiloxane copolymer containing polycarbonate blocks (A-1) each composed of a specific repeating unit and polyorganosiloxane blocks (A-2) each containing a specific repeating unit, wherein the polycarbonate-polyorganosiloxane copolymer has the following Expression (F1a) satisfies: wherein wM1 is an average content (mass%) of the polyorganosiloxane blocks (A-2) in polycarbonate-polyorganosiloxane copolymers each having a molecular weight determined using polycarbonate as a conversion reference of 56,000 or more to 200 000 or less among the polycarbonate-polyorganosiloxane copolymers obtained by separating the polycarbonate-polyorganosiloxane copolymer by gel permeation chromatography: