| abstract |
CONTINUOUS PRODUCTION METHOD AND AROMATIC POLYCARBONATE PRODUCTION DEVICE. The object of the present invention is to provide a method of producing multiple types of aromatic polycarbonates through a liquefaction process without loss by change and deterioration in quality. The present invention relates to the production method of an aromatic polycarbonate, comprising the supply of a liquefied mixture of raw materials of an aromatic dihydroxy compound and / or a carbon dioxide, prepared in the absence of an ester exchange catalyst, for steps two-line polycondensation system, each equipped with three vertical reactors, connected in series, and, at the same time, a horizontal reactor continuously conducting the polycondensation reaction, in the presence of an ester exchange catalyst. |