OLEFIN POLYMERISATION CATALYST COMPRISING CYCLOTRIVERATRILENE AND DERIVATIVES THEREOF Russian patent published in 2021 - IPC C08F4/654 C07C43/21 C08F10/02 C08F10/06 

FIELD: chemistry.

SUBSTANCE: present invention describes Ziegler-Natta catalyst systems for olefin polymerisation, a solid catalyst component and a polymerisation method. Ziegler-Natta catalyst system contains magnesium, titanium, halogen and at least one compound of formula (I), as (i) internal electron donor, (ii) an external electron donor or (iii) both, where each M₁, M₂, M₃, M₄, M₅, M₆, M₁’, M₂’, M₃’, M₄’, M₅’ and M₆’ is independently selected from a group consisting of hydrogen, hydroxy, amino, aldehyde group, carboxy, acyl, halogen atoms, -R₁ and -OR₂, where each R₁ and R₂ independently represents C₁-C₁₀ hydrocarbyl, which is unsubstituted or substituted with a substitute selected from a group consisting of hydroxy, amino, aldehyde, carboxy, acyl, halogen atoms, C₁-C₁₀ alkoxy and heteroatoms ; and wherein when among M₁-M₆ and M₁'-M₆' any two adjacent groups on the same phenyl ring are independently selected from a group consisting of R₁ and -OR₂, two adjacent groups can optionally be connected to form a ring under the condition that M₁, M₂, M₃, M₄, M₅, M₆, M₁’, M₂’, M₃’, M₄’, M₅’ and M₆’ are not simultaneously hydrogen. Invention also relates to a catalyst system which contains a reaction product: 1) solid catalytic component containing magnesium, titanium, halogen and optional internal electron-donor compound, 2) cocatalyst and 3) an internal electron-donor compound which contains at least one compound of formula (I); and to a catalyst system comprising a reaction product: 1) disclosed solid catalyst component, 2) cocatalyst and 3) optional external electron-donor compound.

Formula (I)

EFFECT: inclusion of cyclotriveratrylene and its derivatives in olefin polymerisation catalysts can improve performance of the obtained catalysts, for example, activity, hydrogen sensitivity and copolymerisation parameters.

33 cl, 16 tbl, 11 ex