POLYESTER POLYMERIZATION CATALYST, POLYESTER PRODUCED BY USING SAME, METHOD FOR PRODUCING POLYESTER, AND MOLDED BODY COMPOSED OF SUCH POLYESTER

摘要

Disclosed is a polyester polymerization catalyst characterized by containing at least one substance selected from the group consisting of aluminum and compounds thereof as a metal-containing component, and also containing at least one phosphorus compound having a specific structure. The polyester polymerization catalyst is extremely excellent in catalyst activity. By using such a polyester polymerization catalyst, there can be obtained such a polyester which is reduced in foreign matter content and enables to obtain a molded body having excellent transparency. Also disclosed is a method for producing such a polyester.