| 摘要 |
A polyester based on poly(trimethylene terephthalate) consisting essentially of trimethylene terephthalate repeating units, comprising at least one kind of compound selected from the group consisting of alkali metal compounds, alkaline earth metal compounds and manganese compounds in an amount of 10 to 150 ppm expressed in terms of the metal element in a molar ratio of the total amount of elements of the contained alkali metal elements, alkaline earth metal elements and manganese element to the amount of the contained phosphorus element within the range of the following formula (I): 0<=P/M<=1 (I) wherein, P is the molar amount of the phosphorus element in the polyester; M is the total amount of the alkali metal elements, alkaline earth metal elements and manganese element.
|
