CATALYTIC COMPONENTS FOR POLYMERIZATION OF OLEFINS Russian patent published in 2008 - IPC C08F4/651 C08F4/655 C08F210/16 C08F4/654 

FIELD: polymerization catalysts.

SUBSTANCE: invention provides solid catalytic component for polymerization of olefins, contains magnesium, titanium, halogen, and electronodonor compound belonging to series of ethers, esters, amines, ketones, or nitriles and is characterized by Mg/Ti molar ratio higher than 5 and electronodonor compound-to-titanium molar ratio higher than 3.5, while titanium atoms originate from titanium tetrahalides or compounds of formula TiX_n(OR¹)_4-n wherein 0≤n≤3, X represents halogen and R C₁-C₁₀-hydrocarbon group and wherein magnesium atoms originate from adduct of formula MgCl₂•pR₂OH wherein p represents number from 0.1 to 6 and R² C₁-C₁₈-hydrocarbon radical. Also described is olefin polymerization catalyst containing product obtained by contacting above solid catalytic component, one or several alkylaluminum compound, and optionally an external electronodonor compound optionally followed by pre-polymerization with one or several olefins of formula CH₂=CHR, wherein R is H or C₁-C₁₀-hydrocarbon group, to form polymer in amount from about 0.1 to about 1000 g per 1 g of solid catalytic component. Further described is copolymerization of olefins CH₂=CHR, wherein R is H or C₁-C₁₀-hydrocarbon group, in presence of proposed catalyst.

EFFECT: achieved uniform distribution of comonomer in chains and between chains of copolymer at high polymerization activity.

27 cl, 6 tbl, 55 ex