CATALYST FOR POLYESTER POLYCONDENSATION AND METHOD FOR PRODUCING POLYESTER RESIN USING THE SAME

摘要

A catalyst for polyester polycondensation which comprises a titanium atom, an alkaline earth metal atom and a phosphorus atom and has a specific constitution; and a polyester resin and a formed article obtained by using the catalyst. The above catalyst exhibits high reactivity, is excellent in the storage stability for a long period of time, can be commercially produced with ease at an advantageous cost.