FIELD: polymer materials. SUBSTANCE: invention provides polyethylene composition containing 85-99.5 wt.% of component A having bimodal molecular weight distribution and component B having unimodal molecular weight distribution, wherein component B linear ethylene copolymer with molecular weight between 150000 and 600000, molecular weight distribution between 3.5 and 9.5, and density controlled within a range of 920 to 960 kg/cu.m. Component B is prepared separately using Ziegler-Natta catalysts or metallocene catalysts. Content of component B in final product varies from 0.5 to 15 wt.%. EFFECT: improved mechanical characteristics. 14 cl, 5 tbl, 3 ex
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