Melt phase process for making a polyester polymer melt phase product, polyester polymer composition, process for making a polyester polymer, polyester polymer melt phase product, polyester polymer melt phase pellets Polyester Process and Process for Making Polyester Polymer Articles

摘要

"FUSION PHASE PROCESS FOR MANUFACTURING A POLYESTER POLYMER FUSION PRODUCT, POLYESTER POLYMER COMPOSITION, PROCESS FOR MANUFACTING A POLYESTER POLYMER, POLYESTER FAMMER POLYMER FUSION PRODUCT PROCESS, AND PROCESS FOR MANUFACTURING POLYESTER POLYMER ARTICLES ". A melt phase process for manufacturing a polyester polymer melt phase product by adding an antimony containing catalyst to the melt phase, polycondensing the melt containing said catalyst into the melt phase until the intrinsic viscosity of the melt reaches at least 0.75 dL / g. Polyester polymer melt phase pellets containing antimony residues and having an intrinsic viscosity of at least 0.75 dL / g are obtained without solid state polymerization. Polyester polymer pellets containing antimony residues and having an intrinsic viscosity of at least 0.70 dL / g obtained without increasing the molecular weight of the solid state polymerization melt phase product are fed to an extruder, melted to produce a polymer of molten polyester, and extruded through a die to form shaped articles. Melt phase products and articles made therefrom have a light b * color and / or high L * brightness, and the reaction time to manufacture melt phase products is short.