The fillers (talc and CaCO3 without sizing agent) were added to PP using a Brabender DSK 42/7 intermeshing counter-rotating twin-screw extruder at 190 °C and 150 rpm to obtain a compound with mineral loading of 20 wt.%. Then the PP compounds were mixed with PA-6, APP, and EVA24 using a Brabender Mixer measuring head (type 350/EH, roller blades) at 230 °C and 50 rpm, controlling of the mixing conditions using the data processing system of Brabender Plasti-Corder PL2000. The commercially available PP-talc compound was directly mixed with the other components in the mixer. Sheets (100×100×3 mm) were obtained using a Darragon pressing machine at 200 °C and at a pressure of 106 Pa. Samples were also prepared by injection moulding. The composition of the different compounds are listed in Table 1.