发明名称 PRODUCTION METHOD OF POLYCARBONATE RESIN
摘要 PROBLEM TO BE SOLVED: To provide a polycarbonate resin for a photo-recording medium and a sheet, suitable for high-temperature molding and continuous sheet molding, having excellent heat stability, which has an eliminated dimer carbonate and a small difference in molecular weights between surface and middle layers of the molding, in a production method of the polycarbonate resin. SOLUTION: In the production method of the polycarbonate resin comprising an interfacial polymerization method or a solution polymerization method, the method comprises directly adding a molecular weight modifier in a melting state with agitating to a reaction system.
申请公布号 JP2001316467(A) 申请公布日期 2001.11.13
申请号 JP20000135664 申请日期 2000.05.09
申请人 MITSUBISHI GAS CHEM CO INC 发明人 ASAO TOSHIAKI;SHIOMI KAZUAKI;MIZUTANI MAKOTO
分类号 C08G64/20;G11B7/24;G11B7/253 主分类号 C08G64/20
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