| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyester resin composition which can be used for solving the problem associated with conventional technology, such as production of cyclic ester oligomers and aldehydes at molding etc., is excellent in transparency and flavor retention, causes no problem such as deterioration in its transparency due to staining of a mold at continuous molding and can efficiently produce a blow molded product etc. excellent in thermal dimensional stability, and a molded product made of the same. SOLUTION: The polyester resin composition essentially comprises a polyester resin (1) which mainly comprises an aromatic dicarboxylic acid component and a glycol component and is prepared by copolymerizing 100-5,000 ppm phosphorus compound calculated in terms of phosphorus atom and a polyester resin (2) which essentially comprises an aromatic dicarboxylic acid component and a glycol component. The cyclic ester oligomer content A<SB>t</SB>ppm in the molded product obtained through injection molding of the polyester resin composition at 290°C and the cyclic ester oligomer content A<SB>0</SB>ppm in the composition before the injection molding satisfy the relation: A<SB>t</SB>-A<SB>0</SB><500 ppm. COPYRIGHT: (C)2005,JPO&NCIPI
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