CATALYST COMPONENTS FOR POLYMERISATION OF OLEFINS Russian patent published in 2017 - IPC C08F4/651 C08F10/00 

FIELD: chemistry.

SUBSTANCE: solid catalyst component for the polymerization of olefins contains Mg, Ti and an electron-donor compound with the formula (I), where R₁ is selected from hydrocarbon groups C₁-C₁₅, optionally containing a halogen atom, of the group R₂ are independently selected from hydrogen or alkyl groups C₁-C₁₀, the bridging group A has the formula -(ZR³_m)_n- n-, in which, independently, Z is selected from C, R³, equal or different from each other, being hydrogen or hydrocarbon radicals C₁-C₂₀, which can be combined to form one or more cycles, m is a number equal to the valence of Z, and n is an integer from 1 to 10. The catalyst contains the above solid component and an external electron donor compound. A process for the (co) polymerization of olefins CH₂=CHR in which R is hydrogen or a hydrocarbon radical having from 1 to 12 carbon atoms is carried out in the presence of a catalytic system comprising a reaction product between: i. a solid catalyst component; ii. an alkyl aluminium compound; and iii. optionally, an external electron-donor compound.

EFFECT: these catalyst components show an excellent balance of chemical activity and stereospecificity in the polymerization of olefins.

12 cl, 1 tbl, 9 ex