Patent ID: 8147738

Claim:
A process comprising producing pellets of polymers of thermoplastic polyesters or copolyesters from a polyester melt with a strand pelletizer in which the polyester melt is supplied to die orifices and is thereafter supplied in the form of strands via a discharge section to a pelletization device with draw-in rollers, wherein a strand removal speed v ab is adjusted via the draw-in rollers, wherein the strands exit the die orifices at an exit speed v aus of at least 110 m/min, wherein a relationship of exit speed v aus divided by the area f of the die orifice opening of a respective die orifice v aus /f is configured such that the condition v aus /f≧30 m/(min×mm 2 ) is satisfied, and wherein the strands thus issuing from respective die orifices are brought into contact with a cooling fluid.