| abstract |
PROBLEM TO BE SOLVED: To provide an aromatic polyester excellent in transparency, heat resistance, mechanical properties and aroma retention, and can be advantageously used as a container or packaging material for foods or beverages, and a polyester molded body comprising them. is there. An aromatic polyester containing a polycondensation catalyst containing at least one selected from the group consisting of aluminum compounds, wherein the molded body made of the aromatic polyester is extracted in ultrapure water at 80 ° C. for 1 hour. When the bitterness value and the astringency value of the extracted water obtained by carrying out the measurement are measured with a taste inspection device equipped with a taste sensor made of an artificial lipid membrane, the difference between the bitterness value of the extracted water and the bitterness value of ultrapure water And the difference between the astringency value of the extracted water and the astringency value of ultrapure water is 0.5 or less, respectively. [Selection figure] None |