Polyethylene molding composition with multimodal molecular weight distribution, used for making large blow-molded containers, contains low-molecular homo polyethylene and high- and ultrahigh-molecular co polyethylenes

摘要

Polyethylene molding composition with multimodal molecular weight distribution has a density of 0.951-0.955 g/cm3 at 23degreesC and a melt flow index MFI190/5 of 0.25-0.4 dg/minute and contains (wt.%) 35-40% low-molecular ethylene homopolymer A, 30-40% high-molecular ethylene copolymer B with another 4-8 carbon (C) olefin and 26-30% ultrahigh molecular ethylene copolymer C. An Independent claim is also included for production of the molding composition.