Catalytic System for the manufacture of Polyester polycondensation, and Method for Manufacturing Polyester

摘要

This concerns a catalytic System for the manufacture of Polyester polycondensation by, and a Manufacturing method of Polyester. More particularly, it relates to a catalytic System of various components used, mainly, for the manufacture of Polyesters, more particularly, of polyethylene terephthalate.This concerns a catalytic System comprising several components, characterized in that it comprises an Aluminum Compound (a), (b) a compound of an alkali metal, or a compound of magnesium, (c) or (d), a compound organofosfu00ednico, or (c) of the two compounds Magnes (d) organofosfu00ednico Io, and those compounds that constitute the catalytic system are present.At least, in the middle of the stage of polycondensation of Polyester. The catalytic System of the present, which contains no Heavy Metals, has a catalytic activity equivalent to the previous systems, and enables to obtain a Polyester mainly with remarkable Properties of color.