| abstract |
(57) [Problem] To provide a polyester resin which can be advantageously used as a hollow molded article excellent in transparency and heat resistance dimensional stability. SOLUTION: The polyester resin whose main repeating unit is ethylene terephthalate, comprising a Mg compound, At least one kind of metal compound, P compound and Sb compound selected from a Ca compound, a Co compound, a Mn compound and a Zn compound contains an amount satisfying the following (1) to (3), and at least one kind of basic compound A polyester resin for a hollow molded article, comprising a nitrogen compound in an amount of 0.01 to 1 mol% based on the polyester resin. 0.1 ≦ M ≦ 3 (1) 0.1 ≦ M / P ≦ 2 (2) 0.3 ≦ Sb ≦ 3 (3) (In the above formula, M is Mg contained in 1 ton of polymer. Compound, Ca compound, Co compound, Mn compound and Zn The mole number of the metal atom of at least one metal compound selected from the compounds, P is the mole number of the P atom of the P compound contained in 1 ton of the polymer, and Sb is the mole number of the Sb compound contained in 1 ton of the polymer. Shows the number of moles of Sb atom. ) |