Process for the conversion of poly(ethylene terephthalate) waste to poly(alkylene terephthalate)

摘要

The present invention relates to a process for the conversion of poly(ethylene terephthalate) waste to poly(alkylene terephthalate) useful as engineering thermoplastic, which comprises reacting Poly(ethylene terephthalate) powder with a diol containing 3-12 carbon atoms in the liquid phase in the presence of a catalyst at a temperature in the range 180 DEG -270 DEG C. under reduced pressure and inert atmosphere.