Mitsubishi Chemical Corporation

Michio Higashijima

Yutaka Yatsugi

Motohiro Munakata

Naoki Yukita

The invention provides: a polycondensation catalyst for polyester production, which contains titanium atoms, alkaline earth metal atoms and phosphorus atoms, has high reactivity and excellent long-term storage stability, can be easily produced industrially, and has an advantage in cost; a polyester resin obtained with the catalyst; and a molded article. These are: a polymerization catalyst for polyester production containing titanium atoms, alkaline earth metal atoms and phosphorus atoms and having a specific constitution; a polyester resin obtained with the catalyst; and a molded article.

Catalyst for polyester polycondensation and method for producing polyester resin using the same

The invention relates to a liquid catalyst solution containing a polycondensation catalyst for polyester production, which contains titanium atoms, alkaline earth metal atoms and phosphorus atoms, has high reactivity and excellent long-term storage stability, can be easily produced industrially, and has an advantage in cost.

Growing community of inventors

Mie, Japan

Michio Higashijima