Method for increasing solid state polymerization rate of...

Details Method for increasing solid state polymerization rate of... Method for increasing solid state polymerization rate of...

C - Chemistry, Metallurgy

08

G

C08G 63/83 (2006.01) C08G 63/80 (2006.01)

Patent

CA 2464920

This invention concerns a method for increasing the polymerization rate of polyester polymers in the solid state by adding a catalytic amount of zinc p- toluenesulfonate to a polyester polymer melt that is essentially free of antimony and germanium, before solid state polymerization.

L'invention concerne un procédé permettant d'augmenter la vitesse de polymérisation de polymères polyester à l'état solide et consistant à ajouter une quantité catalytique de p-toluènesulfonate de zinc dans des polymères polyester fondus sensiblement exempts d'antimoine et de germanium, avant la polymérisation à l'état solide.

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