Patent ID: 8426520

Claim:
Heterophasic polypropylene resin comprising a polypropylene homo- or copolymer matrix phase (A) and an ethylene-propylene copolymer phase (B) dispersed within the matrix, wherein the heterophasic polypropylene resin has a fraction insoluble in p-xylene (XCU) at 25° C. with an intrinsic viscosity of 2.0 dl/g or less, determined according to DIN EN ISO 1628-1and -3, and a fraction soluble in p-xylene (XCS) at 25° C. having an intrinsic viscosity of 2.0 to 4.5 dl/g, determined according to DIN EN ISO 1628-1 and -3, and an amount of ethylene monomer units of 60 to 85 mol %.