HIGH FLOW AND STIFF POLYMER MATERIAL WITH GOOD TRANSPARENCY AND IMPACT PROPERTIES

摘要

Polypropylene composition having a melt flow rate MFR2 (230 °C) of equal or above 15 g/10min comprising: (a) a crystalline polypropylene matrix; (b) an elastomeric propylene copolymer phase having a propylene content in the range of 40 to 80 wt.-%, and an intrinsic viscosity in the range of more than 0.7 to less or equal 2.5 dl/g; (c) a first polyethylene having a density in the range 905 to 925 kg/m3 and melt flow rate MFR2 (190 °C) of below 30 g/10min; (d) a second polyethylene having a density of above 915 kg/m3, and a melt flow rate MFR2 (190 °C) of equal or above 30 g/10min.