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1. (WO2016050963) PROCESS FOR THE PRODUCTION OF ALIPHATIC-AROMATIC POLYESTERS

Pub. No.:    WO/2016/050963    International Application No.:    PCT/EP2015/072818
Publication Date: Fri Apr 08 01:59:59 CEST 2016 International Filing Date: Sat Oct 03 01:59:59 CEST 2015
IPC: C08G 63/181
C08G 63/85
C08G 63/16
Applicants: NOVAMONT S.P.A.
Inventors: FAIELLA, Federico
MILIZIA, Tiziana
VALLERO, Roberto
Title: PROCESS FOR THE PRODUCTION OF ALIPHATIC-AROMATIC POLYESTERS
Abstract:
This invention relates to a process for the production of polyesters comprising an esterification/transesterification stage and a polycondensation stage, characterised in that the said polycondensation stage is carried out in the presence of a catalyst comprising a mixture of at least one Titanium-based compound and at least one Zirconium-based compound in which the Ti/(Ti+Zr) ratio by weight is equal to or greater than 0.01 and equal to or less than 0.70.