| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyester composition and a film including less amount of minute foreign matter and provided with static-charge applicability and aroma retentivity at the same time. SOLUTION: This polyester composition comprises a magnesium compound, a potassium compound and a phosphorus compound expressed by formula (1) (R<SB>1</SB>and R<SB>2</SB>are each a hydrocarbon group with one or more carbons; R<SB>3</SB>represents hydrogen or a hydrocarbon group with one or more carbons; R<SB>1</SB>and R<SB>2</SB>may be the same as or different from each other; X indicates either of a carbonyl group or an ester group; and n is 0 or 1), and each amount of elements satisfies the following (2) through (5): 300≤Mg≤450 (2); 0<K≤100 (3); 3≤Mg/K≤100 (4); 3≤(Mg+K/2)/P≤20 (5), with a proviso that Mg, K and P indicate each an amount (ppm) of a magnesium element, a potassium element and a phosphorus element in the polyester, respectively. COPYRIGHT: (C)2006,JPO&NCIPI
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