Patent ID: 8546515

Claim:
A process for producing a polycarbonate, the process comprising reacting one or more dihydroxy compounds comprising a dihydroxy compound having at least one linking —CH 2 —O— group with a carbonic acid diester in the presence of a polymerization catalyst, to form a polycarbonate, wherein: the polymerization catalyst comprises at least one metal compound selected from the group consisting of an alkali metal compound and an alkaline earth metal compound; an amount of an alkali and/or alkaline earth metal compound contained in the one or more dihydroxy compounds is 5 μmol or smaller, in terms of an amount of metal(s) contained per mole of the one or more dihydroxy compounds reacted as starting material; and the dihydroxy compound having at least one linking —CH 2 —O— group has a formic acid content of 3 ppm or lower than 20 ppm.