| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a polyester resin composition excellent in hydrolysis resistance and heat resistance, and method of producing the same.SOLUTION: The aromatic polyester resin composition contains not less than 0.5 mol% and not greater than 10 mol% of a structural unit represented by chemical formula (1) on the basis of the mole numbers of total dicarboxylic acid constituents, and contains a univalent metal and a bivalent metal. The mole ratio of an amount of the metal element to an amount of phosphorus element satisfies the relationship expressed by 0.5≤M/P≤1.5 (I) and M=(M+M/2) (II) where Mis the bivalent metal and Mis the univalent metal.</p> |
