NEW TETRAARYLBORATE COMPOUND INCLUDING ITS CATALYTIC COMPOSITION AND METHOD FOR PRODUCING ETHYLENE HOMOPOLYMERS OR ETHYLENE AND α-OLEFIN COPOLYMERS USING IT Russian patent published in 2023 - IPC C07F5/02 C07C211/64 C08F110/02 C08F210/16 C08F4/6592 C08F4/52 

FIELD: catalytic chemistry.

SUBSTANCE: invention provides a tetraaryl borate compound represented by the following formula 2, wherein B is a boron atom; R¹ is (C1-C30) alkyl; R² is (C1-C30) alkyl and each R¹¹-R¹⁵ is independently a hydrogen atom or (C1-C30) alkyl. The invention also relates to a catalyst composition containing a transition metal for producing an ethylene homopolymer or an ethylene-α-olefin copolymer, a method for producing an ethylene homopolymer or an ethylene-α-olefin copolymer, as well as a method for producing an ethylene homopolymer or an ethylene-α-olefin copolymer, including: the introduction of a catalyst activator composition containing a tetraarylborate compound.

EFFECT: providing an increase in solubility in a solvent based on an aliphatic hydrocarbon and an effective improvement in the activity of a catalyst with a single active site, and also the claimed invention makes it easy to obtain an ethylene-based copolymer with a high molecular weight, having a high degree of ethylene conversion, low density and low MI value corresponding to high molecular weight even under high temperature conditions.

14 cl, 1 tbl, 2 ex

Formula 2