| abstract |
(57) [Summary] [Object] The present invention provides a copolymerized polycarbonate which is excellent in mechanical properties, heat resistance, transparency and hue, and which can produce a copolymerized polycarbonate further improved in fluidity and moldability. A manufacturing method is provided. The method for producing a copolycarbonate according to the present invention comprises: (i) as an aromatic dihydroxy compound, when producing a copolycarbonate by melt-polycondensing two or more aromatic dihydroxy compounds and a carbonic acid diester. When the total amount of the aromatic dihydroxy compound is 100 mol%, resorcin and / or substituted resorcin are used in an amount of 2 to 90 mol%, and (ii) A method for producing a copolycarbonate, which comprises using (a) an alkali metal compound and / or an alkaline earth metal compound as a catalyst. |