FIELD: polymerization catalysts. SUBSTANCE: component of catalyst for polymerization of alpha-olefins contains, wt %: magnesium 5-35, titanium 0.3-10, halogen 30-75 (per 100% of total product), compound with at least two ether linkages 0.5-30, carbon 0.5-20, and electron donor 0.05-7. EFFECT: increased homogeneity of polymerization product particles, and increased bulk density and stereoregularity of product. 11 cl, 4 tbl, 14 ex
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