| 摘要 |
PROBLEM TO BE SOLVED: To provide polyester moldings being excellent in transparency and heat resistance, and reducing a mold stain, and a rough skin, whitening or the like of a bottle surface caused by, for example, a cyclic oligomer, by using an aluminum compound as a principal catalytic metal component, without containing a conventional antimony, germanium, and titanium compounds as catalytic principal components, and to provide a producing method of the moldings. SOLUTION: The producing method of the moldings comprises using a polyester obtained by mixing a polyester (1) containing the aluminum compound and a phosphorus compound, and on demand, an antimony compound and/or a germanium compound, with another polyester (2) containing a high concentration phosphorus compound or another polyester obtained by simply mixing with a phosphorus compound. COPYRIGHT: (C)2004,JPO&NCIPI
|
