Patent ID: 8916250

Claim:
Polypropylene composition comprising (a) a propylene homopolymer (A) comprising, at least 97 wt.-% propylene units, (b) a platelet-like inorganic filler (B) in an amount of 0.2 to 0.8 wt.-%, based on the total polypropylene composition, and (c) a β-nucleating agent (C) in an amount of 0.005 to 0.5000 wt.-%, wherein (i) the propylene homopolymer (A) has a polydispersity index (PI) of at least 4.0, (ii) the propylene homopolymer (A) has an MFR 2 (230° C.) of less than 3.0 g/10 min measured according to ISO 1133, and (iii) the amount of β-modification of the propylene homopolymer (A) is in the range of 60 to 90% determined by DSC run according to ISO 3146/part 3/method C2 using second heat scan.