Patent ID: 9388304
Filing Date: 2016-07-12
CPC Classification: C08L

Claim Text:
1. Heterophasic polypropylene composition (HECO1) having a melt flow rate MFR 2 (230° C.) measured according to ISO 1133 in the range of 0.5 to 20 g/10 min, said heterophasic polypropylene composition (HECO1) comprises a propylene homopolymer (H-PP) and an elastomeric propylene copolymer (E), wherein: (a) said propylene homopolymer (H-PP) has a melt flow rate MFR (b) the xylene cold soluble (XCS) fraction of the heterophasic polypropylene composition (HECO1) has an intrinsic viscosity determined according to DIN ISO 1628/1 (in decalin at 135° C.) in the range of more than 2.5 to below 11.0 dl/g; and (c) the comonomer content of the xylene cold soluble (XCS) fraction of the heterophasic polypropylene composition (HECO) is in the range of 10.0 to 25.0 wt. %; wherein further; (d) the heterophasic polypropylene composition (HECO1) fulfills the inequation (I): wherein, C is the comonomer content in wt. % of the xylene cold soluble (XCS) fraction of the heterophasic polypropylene composition (HECO1), IV is the intrinsic viscosity in dl/g of the xylene cold soluble (XCS) fraction of the heterophasic polypropylene composition (HECO1), and wherein the molecular weight distribution (Mw/Mn) of the xylene cold soluble (XCS) fraction of the heterophasic polypropylene composition (HECO1) is at least 3.5.