Heterophasic polypropylene copolymer composition

摘要: Heterophasic polypropylene composition comprising (A) 45 to 70 wt % of a propylene homo- or copolymer matrix with an MFR 2 in accordance ISO 1133 (230° C., 2.16 kg load) ≧80 g/10 min and (B) 25 40 elastomeric propylene-ethylene copolymer, having intrinsic viscosity IV (ISO 1628, decalin as solvent) ≧3.3 dl/g ethylene content 20 50 %, (C) 0-15 ethylene/alpha-olefin random (D) 3-25 parts per weight inorganic filler, the heterophasic compositions total C./2.16 kg) ≧5 min, Charpy notched impact strength according 179/1eA at +23° C. ≧15.0 kJ/m , preferably ≧25.0 minimum value for the −20° ≧7.0 ≧10.0 tensile modulus 527-3 ≧1200 MPa; their preparation use producing injection moulded articles being free flow marks.