FIELD: polymerization processes. SUBSTANCE: polymerization process is characterized by that catalyst, polymerization retardant, ethylene, and optionally olefin comonomer are brought into contact under polymerization conditions, said catalyst containing from chromium oxide, titanium oxide, and an inorganic refractory oxide, polymerization retardant being selected from group including alcohols, aldehydes, ketones, esters, organic acids, and their mixtures. Process is particularly suitable for polymerization of ethylene resins designed for blast molding. EFFECT: expanded polymer production possibilities. 19 cl, 1 tbl
