Patent ID: 7511114

Claim:
A process for producing a colored aromatic polycarbonate resin composition comprising: dispersing at least one colorant (b) selected from the group consisting of phthalocyanine-based compounds, anthraquinone-based compounds and ultramarine blue in a polyalkyleneglycol compound (c) having a number-average molecular weight of 62 to 4000 which is represented by the general formula (2): HOâ€”[â€”CHR 1 â€”CHR 2 â€”] m â€”OHâ€ƒâ€ƒ(2) wherein R 1 , R 2 , R 3 and R 4 are independently a hydrogen atom or an alkyl group, and m is a natural number of not less than 1; and adding the resultant dispersion to an aromatic polycarbonate resin (a) kept in a molten state, which aromatic polycarbonate resin (a) has a viscosity-average molecular weight of not less than 16000 and contains a branched constitutional unit in an amount of 0.3 to 0.95 mol % on the basis of a constitutional unit represented by the general formula (1): wherein X is a single bond, an alkylene group having 1 to 8 carbon atoms, an alkylidene group having 2 to 8 carbon atoms, a cycloalkylene group having 5 to 15 carbon atoms, a cycloalkylidene group having 5 to 15 carbon atoms, or a divalent connecting group selected from the group consisting of â€”Oâ€”, â€”Sâ€”, â€”COâ€”, â€”SOâ€” and â€”SO 2 â€”.