The object of the present invention is to provide a high quality
polyester resin having
high productivity, stability and safety, a catalyst for
polyester production with high catalytic activity, a method for producing the
polyester resin with the catalyst, a
polyester resin obtained with the catalyst, and a hollow molded container comprising the
polyester resin. The
polyester resin of the present invention satisfies specific parameters regarding polymerizability, stability, and
metal content. The catalyst for polyester production satisfies specific parameters. The catalyst particularly preferably comprises: (a) a
solid titanium-containing compound which has a maximum
solubility in
ethylene glycol of 1,000 ppm or more in terms of converted
titanium amount when dissolved in
ethylene glycol with heating at 150° C., and which comprises
titanium,
oxygen, carbon, and
hydrogen, and optionally
alkali metal, and has a Ti—O—C bond; and (b) an
alkali metal compound, the
molar ratio of the
alkali metal atoms to the
titanium atom in the catalyst being in the range of 20 / 1 to 0.1 / 1.