Patent ID: 8674024
Filing Date: 2014-03-18
Classification: C08F,C08L

Abstract:
1. A polyethylene moulding composition having a multimodal molecular weight distribution, having a density according to ISO 1183 at 23° C. in the range of 920 to 960 kg/m 3 and an MFR 190/2 according to ISO 1133 in the range of 0.05 to 10 g/10 min, said polyethylene moulding composition comprising at least three ethylene polymer fractions having distinct molecular weights: A) 15 to 50 wt % of a low molecular weight ethylene homopolymer or copolymer fraction with a weight average molecular weight M B) 15 to 50 wt % of a medium molecular weight ethylene homopolymer or copolymer fraction with a weight average molecular weight M C) 15 to 50 wt % of a high molecular weight ethylene homopolymer or copolymer fraction with a weight average molecular weight M provided that one of A, B and C is an ethylene homopolymer and at least one other component is an ethylene copolymer with at least one C and wherein the composition has a Shore D hardness measured according to ASTM D2240-05 (15 sec) of at least 56.0.