TRANSITION METAL BASED CATALYST SYSTEMS AND METHODS OF PRODUCING HOMOPOLYMERS OF ETHYLENE OR COPOLYMERS OF ETHYLENE AND α-OLEFINS USING SAID SYSTEMS Russian patent published in 2014 - IPC C07F7/28 C08F4/76 C08F10/02 

FIELD: chemistry.

SUBSTANCE: invention relates to a transition metal compound of chemical formula (1): [Chemical formula 1] In the present formula, M is Group 4 transition; Cp is a cyclopentadienyl ring bonded with M on a η⁵-type, where the cyclopentadienyl ring can further be substituted with (C1-C20)alkyl or (C6-C30)aryl; Ar is (C6-C14)arylene; R¹¹ and R¹² independently denote a hydrogen atom or (C1-C10)alkyl; n is an integer from 0 to 2; R is (C1-C10)alkyl or (C1-C10)alkoxy; and when n equals 2, individual substitutes R can be identical or different; X¹ and X² independently denotes a halogen atom, (C1-C20)alkyl, (C6-C30)aryl(C1-C20)alkyl or (C6-C30)aryloxy; alkyl, arylalkyl, alkoxy, aryloxy groups, radicals Rⁿ, X¹ and X² and arylene groups Ar can be independently substituted with one or more substitutes selected from a group consisting of (C1-C20)alkyl, (C6-C30)aryl and (C1-C20)alkoxy. The invention also discloses a catalyst composition, a method of producing homopolymers of ethylene or copolymers of ethylene with α-olefin, a homopolymer of ethylene or a copolymer of ethylene with α-olefin.

EFFECT: invention enables to obtain compounds which are suitable as catalysts for producing homopolymers of ethylene or copolymers of ethylene with α-olefin.

13 cl, 1 tbl, 9 ex