FIELD: chemistry.
SUBSTANCE: invention relates to a polyethylene composition intended for the production of small hollow blown articles, in particular flexible and easily compressible tubes, and a method for producing same. Composition has a density greater than 0.948 to 0.955 g/cm3, MIF/MIP ratio from 12 to 25, MIF from 25 to 40 g/10 min and Mz from 1000000 to 2000000 g/mol, as well as a long chain branching index (LCBI) of at least 0.55. MIF is the melt flow index at 190°C with a load weight of 21.60 kg, and MIP is the melt flow index at 190°C with a load weight of 5 kg.
EFFECT: obtained polyethylene composition has a high flow index and environmental stress cracking resistance (ESCR).
12 cl, 1 dwg, 1 tbl, 3 ex
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