Multimodal polyethylene

Abstract

An ethylene copolymer includes or consists of 55 to 80 wt % of an ethylene homopolymer component A and 20 to 45 wt % of an ethylene copolymer component B of ethylene and an olefin comonomer, wherein the component A has a melt flow index as measured according to ISO1133-1:2011 at 190° C., 1.2 kg of 80 to 400 dg/min and a density of at least 968 kg/m3, and the ethylene copolymer has a melt flow index as measured according to ISO1133-1:2011 at 190° C., 5 kg of 0.05 to 0.3 dg/min, a density of 956 to 962 kg/m3, a comonomer content of 0.03 to 0.30 mol %, a viscosity value η0.05 at a temperature of 190° C. and a shear rate of 0.05 rad/s of 200 to 1000 kPa·s and a viscosity value η300 at a temperature of 190° C. and a shear rate of 300 rad/s of 700 to 1500 Pa·s.

Dependencies are inferred from the claim text.