METHOD FOR THE DEPOLYMERIZATION OF A TEREPHTHALATE POLYESTER , VERFAHREN ZUR DEPOLYMERISATION EINES TEREPHTHALAT-POLYESTERS

The invention relates to a method for the depolymerization of a terephthalate polyester, for example a PET polymer. The method comprises the steps of:a) contacting a terephthalate polyester with methanol and dimethyl terephthalate, DMT; andb) heating the mixture of the terephthalate polyester, methanol and DMT in the presence of a catalyst suitable for catalyzing the depolymerization of the terephthalate polyester.