| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a polyester having excellent production efficiency and reduced production cost. SOLUTION: The method for producing the polyester comprises esterifying terephthalic acid with ethylene glycol and then carrying out polymerization. In the method, the esterification is started in the presence of molten bis(2-hydroxyethyl)terephthalate of≥93 wt.% purity. COPYRIGHT: (C)2006,JPO&NCIPI
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