Process to prepare high molecular weight polyester

Details Process to prepare high molecular weight polyester Process to prepare high molecular weight polyester

C - Chemistry, Metallurgy

08

G

C08G 63/183 (2006.01) C08G 63/88 (2006.01) C08K 5/00 (2006.01)

Patent

CA 2086169

ABSTRACT OF DISCLOSURE A process for preparing a polyester having an inherent viscosity of at least 0.5 comprising (A) preparing an admixture of a molten polyester having an inherent viscosity of less than 0.5, a titanium alkoxide and a 13X zeolite, and (B) subjecting the admixture to a time and temperature sufficient to increase the inherent viscosity of the polyester to at least 0.5. D61845\APPLN/mlt

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