Multimodal polyethylene

Abstract

An ethylene copolymer having a multimodal molecular mass distribution includes 40 to 80 wt % of an ethylene polymer component A, 5 to 40 wt % of an ethylene copolymer component B of ethylene and an olefin comonomer, having a higher molecular weight Mn than the ethylene homopolymer component A and having a molar comonomer content CB and a density DB, and 5 to 40 wt % of ethylene copolymer component C of ethylene and an olefin comonomer, having a higher molecular weight Mn than the ethylene copolymer component B and having a molar comonomer content CC and a density DC. The amounts of A, B and C are based on the total weight of the ethylene polymer. The ethylene copolymer has a comonomer content of 0.10 to 3.00 mol % and the difference between CB and CC is at most 0.10 mol %.

Dependencies are inferred from the claim text.