High density polyethylene blend, comprising (A) 55 to 99 wt% of a high density multimodal polyethylene component having a density of at least 930 kg/m3, and (B) 1 to 45 wt% of an ultra-high molecular weight polyethylene homo- or copolymer component having (i) an intrinsic viscosity of at least 15.0 dl/g (ii) an a nominal viscosity molecular weight (Mv) of at least 2.0*10 6 g/mol and (iii) a molecular weight of (M w ) of at least 0.7*10 6 g/mol, and wherein said blend has an MFR 21 of 0.05 to 10.0 g/10min and a density of at least 925 kg/m3.
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机译：高密度聚乙烯共混物，包括（A）55至99 wt％的密度至少为930 kg / m3的高密度多峰聚乙烯组分，和（B）1至45 wt％的超高分子量聚乙烯均聚物或共聚物组分，其具有（i）特性粘度至少为15.0 dl / g（ii）标称粘度分子量（Mv）至少为2.0 * 10 6 g / mol，并且（iii）（M w）的分子量至少为0.7×10 6 g / mol，其中所述共混物的MFR 21为0.05-10.0g / 10min，密度至少为925kg / m 3。
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