CATALYST COMPONENT FOR POLYMERIZATION OF ETHYLENE IN HIGH-LINEAR POLYETHYLENE, A THERMALLY STABLE CATALYST AND A METHOD FOR PREPARATION THEREOF Russian patent published in 2020 - IPC C08F4/70 C07F15/02 C08F4/602 C08F110/02 C08F2/06 C07D221/04 C07C251/16 

FIELD: chemistry.

SUBSTANCE: present invention relates to an ethylene polymerization catalyst component, specifically – {2-[1-(2-R¹-4-R²-6-cycloalkylphenylimino)ethyl]-9-(2-R¹-4-R²-6-cycloalkylphenylimino)-5,6,7,8-tetrahydro-9H-cyclohepta[b]pyridine}iron (II) dichloride, having a structure represented by general formula 1, in which substitutes R¹ and R² are independently selected from a group, including a hydrogen atom and alkyls of formula CH₃-_(x+y+z)(Alk¹)_x(Alk²)_y(Alk³)_z (0 ≤ x+y+z ≤ 3), where Alk¹, Alk² and Alk³ are understood to mean different alkyls of C₁...C₄₀, and alkyl (and also alkyl substituent) is understood to mean a monovalent substitute having composition C_nH_2n+1 (n is an integer); cycloalkyl substitute is selected from a group comprising cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, cyclononyl, cyclodecyl and cyclododecyl (i.e. g = 1, 2, 3, 4, 5, 6, 8). Present invention also relates to a catalyst for polymerization of ethylene and a method of producing a catalyst.

EFFECT: obtaining a catalyst component and a catalyst which contains the above component, the temperature maximum of which is in range of 70–110 °C, and use thereof to produce high-linear polyethylene with MM 2_4–166 kg/mol.

9 cl, 1 tbl, 44 ex