FIELD: chemistry.
SUBSTANCE: polyethylene contains copolymers of ethylene with 1-alkenes or a mixture of homopolymers of ethylene and copolymers of ethylene with 1-alkenes. Herewith polyethylene has a molecular weight distribution Mw/Mn in a range of 7 to 15, a density of 0.942 to 0.954 g/cm3 and a weight-average molecular weight Mw in a range of 20000 to 500000 g/mol. In addition, polyethylene has MIE of 1.0 to 3.0 g/10 min, MIF of 100 to 200 g/10 min, and a ratio of MIF/MIE of 40 to 50, where MIE is a melt flow rate at 190°C with a weight of 2.16 kg, MIF is a melt flow index at 190°C with a weight of 21.6 kg, determined according to ISO 1133.
EFFECT: polyethylene according to the invention is long-chain polyethylene, which provides high fluidity and low warpage of hollow bodies.
12 cl, 1 tbl, 1 ex
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