Foamed polypropylene composition

1. A polypropylene composition (C), comprising:

a) a first heterophasic propylene copolymer (HECO1) having a comonomer content of the xylene soluble fraction (XCS) equal or above 40.0 mol %, said first heterophasic propylene copolymer comprising:

i) a first matrix being a first propylene polymer (M1) and

ii) a first elastomeric propylene copolymer (E1) being dispersed in said first matrix,

b) a second heterophasic propylene copolymer (HECO2) having a comonomer content of the xylene soluble fraction (XCS) below 39.0 mol %, wherein the xylene soluble fraction (XCS) of the second heterophasic copolymer (HECO2) has an intrinsic viscosity (IV) above 3.5 dl/g, said second heterophasic propylene copolymer comprising:

iii) a second matrix being a second propylene polymer (M2) and

iv) a second elastomeric propylene copolymer (E1) being dispersed in said second matrix,

c) an inorganic filler (F),

d) optionally a high density polyethylene (HDPE), and

e) optionally a plastomer (PL) being a copolymer of ethylene and a C 4 to C 8 α-olefin.

2. The polypropylene composition (C) according to claim 1 , comprising:

a) 40.0 to 60.0 wt. % of the first heterophasic propylene copolymer (HECO1),

b) 21.0 to 31.0 wt. % of the second heterophasic propylene copolymer (HECO2),

c) 10.0 to 20.0 wt. % of the inorganic filler (F),

d) optionally 2.0 to 10.0 wt. % of the high density polyethylene (HDPE), and

e) optionally 5.0 to 15.0 wt. % of the plastomer (PL) being a copolymer of ethylene and a C 4 to C 8 α-olefin,

based on the overall polypropylene composition (C).

3. The polypropylene composition (C) according to claim 1 , wherein:

i) the matrix of the first heterophasic propylene copolymer (HECO1) being the first propylene polymer (M1) has a melt flow rate MFR 2 (230° C.) determined according to ISO 1133 in the range of 120 to 500 g/10 min and

ii) the matrix of the second heterophasic propylene copolymer (HECO2) being the second propylene polymer (M2) has a melt flow rate MFR 2 (230° C.) determined according to ISO 1133 in the range of 40 to 170 g/10 min.

4. The polypropylene composition (C) according to claim 1 , wherein the first heterophasic propylene copolymer (HECO1) has:

i) a melt flow rate MFR 2 (230° C.) determined according to ISO 1133 in the range of 50 to 90 g/10 min, and/or

ii) a comonomer content in the range of 20.0 to 50.0 mol %, and/or

iii) a xylene soluble fraction (XCS) in the range of 10.0 to 35.0 wt. %.

5. The polypropylene composition (C) according to claim 1 , wherein the second heterophasic propylene copolymer (HECO2) has:

i) a melt flow rate MFR 2 (230° C.) determined according to ISO 1133 in the range of 1.0 to 15 g/10 min, and/or

ii) a comonomer content in the range of 5.0 to 30.0 mol %, and/or

iii) a xylene soluble fraction (XCS) in the range of 20.0 to 40.0 wt. %.

6. The polypropylene composition (C) according to claim 1 , wherein the first propylene polymer (M1) and/or the second propylene polymer (M2) are propylene homopolymers.

7. The polypropylene composition (C) according to claim 1 , wherein the first elastomeric propylene copolymer (E1) and/or the second elastomeric propylene copolymer (E2) are copolymers of propylene and ethylene.

8. The polypropylene composition (C) according to claim 1 , having a melt flow rate MFR 2 (230° C.) determined according to ISO 1133 in the range of 10 to 40 g/10 min.

9. The polypropylene composition (C) according to claim 1 , wherein the plastomer (PL) is a copolymer of ethylene and 1-octene.

10. The polypropylene composition (C) according to claim 1 , wherein the inorganic filler (F) is talc and/or wollastonite.

11. The polypropylene composition (C) according to claim 1 , wherein said polypropylene composition (C) is a foamable polypropylene composition.

12. A foamed article, comprising the polypropylene composition (C) according to claim 1 .

13. The foamed article according to claim 12 , wherein said foamed article is an automotive article.