CPC C08L 23/12 (2013.01) [A61L 2/081 (2013.01); C08K 5/005 (2013.01); C08K 5/0083 (2013.01); C08K 5/01 (2013.01); C08K 5/1575 (2013.01); C08K 5/526 (2013.01); A61L 2202/23 (2013.01); C08L 2201/08 (2013.01); C08L 2203/02 (2013.01); C08L 2314/06 (2013.01)] | 13 Claims |
1. A polymer composition (C), comprising, based on the total weight of the polymer composition (C):
(a) 91.0 to 98.0 wt.-% of a propylene homopolymer (H-PP),
(b) 1.98 to 8.98 wt.-% of at least one hydrocarbon oil (WO),
(c) 0.01 to 0.7 wt.-% of at least one nucleating agent (NA), and
(d) 0.01 to 2.0 wt.-% of at least one antioxidant (AO);
wherein the sum of components (a), (b), (c) and (d) adds up to at least 95 wt.-% of the total weight of the polymer composition (C) and the propylene homopolymer (H-PP) is an isotactic propylene homopolymer defined by
(i) a melt flow rate MFR2 determined according to IS01133 at 230 ° C. and 2.16 kg in the range from 4.0 to 22.0 g/10 min;
(ii) a melting temperature in the range of 145 to 162° C. as determined by differential scanning calorimetry (DSC); and
(iii) a content of 2,1 erythro regio-defects in the range from 0.1 to 1.3 mol % as determined by 13C-NMR spectroscopy.
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