| abstract |
The invention relates to a method for producing a thermoplastic polymer material that is filled with at least one filler, preferably calcium carbonate CaCO 3 , sensitive to hydrolytic degradation and optionally hygroscopic, and produced by way of polycondensation, particularly PET, wherein under vacuum conditions, constant stirring or mixing and an increased temperature, a mixture of not yet melted, optionally softened, polymer materials comprising the filler is produced, wherein for this purpose a filler, which at the time of addition has not been predried and has a residual moisture (H 2 O) of more than 500 ppm, particularly more than 1000 ppm, is used. |