COMPOSITE METAL OXIDES HAVING HIGHER CATALYST ACTIVATION THAN EXISTING TITANIUM CATALYST AND ANTIMON CATALYST AND A MANUFACTURING METHOD OF POLYESTER USING THE SAME

摘要

PURPOSE: A composite metal oxides and a manufacturing method of polyester using the same are provided to polymerize polyester with a small amount and to merely degrade catalyst activation caused by phosphorus which is a thermal stabilizer so that phosphorus can be used more than conventional method and less pyrolysis can be occurred and can maintain high viscosity and reduce yellowing phenomenon.;CONSTITUTION: A composite metal oxide comprises one kind of metal (M) selected from a group including magnesium (Mg), zinc (Zn), copper (Cu), manganese (Mn), calcium (Ca), iron (Fe), titanium (Ti), and aluminum (Al). The composite metal oxide is used as a catalyst for polymerizing polyester.;COPYRIGHT KIPO 2013