POLYMERIZATION CATALYST FOR POLYESTER, POLYESTER MANUFACTURED BY USING THE SAME, AND PROCESS FOR MANUFACTURING POLYESTER

摘要

PROBLEM TO BE SOLVED: To provide a novel polycondensation catalyst other than antimony compounds, and a polyester manufactured by using the same. SOLUTION: In the manufacture of a polyester, a novel catalyst comprising an aluminum compound and a phosphorus compound is used as the polycondensation catalyst.