| 摘要 |
PROBLEM TO BE SOLVED: To provide a production method of a copolymerized aromatic polyester, by which a new copolymerized aromatic polyester resin excellent in dimensional stability to environmental changes such as temperature change or humidity change can be easily produced with good productivity. SOLUTION: The production method of the copolymerized aromatic polyester comprises: a process for synthesizing a precursor of the polyester by subjecting at least one of dicarboxylic acid selected from the group comprising terephthalic acids and 2,6-naphthalene dicarboxylic acids, 6,6'-(ethylenedioxy)di-2-naphthoic acid, and ethylene glycol to an esterification reaction; and a process for subjecting the precursor of the polyester obtained in the first reaction process to a polycondensation reaction. COPYRIGHT: (C)2009,JPO&INPIT
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