FIELD: chemistry.
SUBSTANCE: invention relates to olefin polymerisation method using the extracted metal carboxylate. Method involves polymerisation of olefins in reactor in the presence of catalyst composition and extracted metal carboxylate. Extracted metal carboxylate is obtained by extraction of the metal carboxylate by organic solvent with dielectric constant at 25°C which is higher than or equal to 3.0. Catalyst composition contains a compound-catalyst which contains metallocene compound-catalyst. Described is a polymer product containing polyolefin, and polymerisation method for producing a copolymer of ethylene with α-olefin.
EFFECT: high catalyst efficiency and/or higher bulk density of resin.
19 cl, 6 tbl, 9 ex
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