FIELD: chemistry.
SUBSTANCE: invention relates to a polyethylene composition suitable for making small articles by blow moulding. Polyethylene composition has density of 0.957–0.965 g/cm3, determined according to ISO 1183-1 at 23 °C, the ratio MIF/MIP 12–25, the value of MIF 18–40 g/10 min, value η0.02 35,000–55,000 Pa·S, indicator of long-chain branching (ILCB), equal to or greater than 0.55, ratio (η0.02/1000)/ILCB) 55–75. Polyethylene composition contains a homopolymer or an ethylene copolymer having MIE of at least 40 g/min. Also described is a method of preparing a polyethylene composition and a moulded article.
EFFECT: technical result is providing a low content of gel in the finished product, as well as high swelling and resistance to cracking under environmental stress.
10 cl, 1 dwg, 1 tbl, 2 ex
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