Heterophasic polypropylene composition with high flexibility and softness

A heterophasic polypropylene composition comprising a polymer base resin which comprises a matrix phase and an elastomeric phase dispersed therein, wherein the matrix phase and the elastomeric phase are polymerized in the presence of a single-site catalyst;

• and
• wherein the polymer base resin comprises:
• (A) from 20 to 55 wt % of a crystalline fraction (CF), measured by Crystex QC in trichlorobenzene, which is a propylene homopolymer fraction or a copolymer fraction of propylene monomer units and comonomer units of ethylene or alpha-olefins with 4 to 12 carbon atoms with an amount of comonomer units of up to 6.0 wt %;
• and
• (B) from 45 to 80 wt % of a soluble fraction (SF), measured by Crystex QC in trichlorobenzene, which is a copolymer of propylene monomer units and comonomer units of ethylene or alpha-olefins with 4-12 carbon atoms, with an amount of comonomer units of from 17 to 55 wt % and an intrinsic viscosity iV of from 1.2 to 7.0 dl/g,
• wherein the heterophasic polypropylene composition has a tensile modulus of not more than 700 MPa and a total viscosity iV of from 1.2 to 7.0 dl/g.