METHOD FOR OBTAINING BASES OF POLYOLEFIN ANTI-TURBULENT ADDITIVES Russian patent published in 2021 - IPC C08F10/02 C08F10/14 C08F2/14 C08F4/654 C08F4/22 C10L1/16 

FIELD: chemistry.

SUBSTANCE: present invention relates to a method for preparing bases of polyolefin anti-turbulent additives. This method is carried out by polymerization of alpha-olefins on a titanium-magnesium catalyst in a perfluorinated hydrocarbon medium. Reaction mixtures are used as alpha-olefins. The reaction mixtures were obtained by oligomerization of ethylene in a linear alpha-olefin medium using complexes of chromium (III) acetylacetonate and diphosphine ligands of the structure where X, X', X'', X'''are hydrogen atoms or methoxy substituents, R is a hydrogen atom or a trialkylsilyl substituent, R' is an alkyl substituent, Y is a structural fragment that forms a cycle with the participation of nitrogen and phosphorus atoms.

EFFECT: development of a process for obtaining finished dispersions of ultra-high molecular weight poly-alpha-olefins from available raw materials - ethylene - with the possibility of varying the type and ratio of comonomers, which are linear alpha-olefins and branched higher alpha-olefins, in order to obtain ready-made dispersions of low-temperature polyolefin ATAs.

1 cl, 2 tbl, 13 ex