| 摘要 |
PROBLEM TO BE SOLVED: To provide a process for producing an aliphatic polyester having good quality continuously and efficiently. SOLUTION: The process for producing an aliphatic polyester continuously is characterized in that the polyester is produced through a preparation step of preparing a slurry containing an aliphatic dicarboxylic acid and an aliphatic diol, an esterification step, and a polycondensation step. In the process, the slurry in the preparation step has a temperature ranging from the freezing point of the aliphatic diol to 80°C and a water content of 0.01-10 wt.%. COPYRIGHT: (C)2010,JPO&INPIT |
