Preparation of polyethylene terephthalate

Details Preparation of polyethylene terephthalate Preparation of polyethylene terephthalate

C - Chemistry, Metallurgy

08

G

402/209

C08G 63/183 (2006.01) C08G 63/189 (2006.01) C08G 63/82 (2006.01)

Patent

CA 2016744

ABSTRACT A process is disclosed for preparing polyethylene terephthalate having a predetermined intrinsic viscosity which involves the direct esterification of terephthallic acid with ethylene glycol followed by the polycondensation of the esterification product using a polycondensation catalyst system containing cobalt, manganese-, and antimony- containing components.

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