The method of manufacturing the polyester polymerization catalyst and polyesters as well as polyesters prepared with this

The present invention includes at least one selected from the group consisting of aluminum compounds, a polyester produced in the presence of a polycondensation catalyst consisting of at least one selected from phosphorus compounds, color, thermal stability and transparency superior a polyester which is particularly improved in terms of the foreign matter. Specifically, polyester-insoluble aluminum-based foreign matter 3500ppm following Poesuteru, haze value when the uniaxially stretched film is 2% or less of the polyester. As the aluminum-based catalysts to achieve these, a polyester polymerization catalyst to the aluminum compound and a phosphorus compound characterized by being mixed in a solvent, when the side measured