PRELIMINARY POLYMERIZED COMPONENTS OF THE CATALYST FOR POLYMERIZATION OF OLEFINES Russian patent published in 2017 - IPC C08F4/649 C08F4/654 C08F10/02 

FIELD: chemistry.

SUBSTANCE: described preliminary prepolymerized component for the polymerization of olefins. Mentioned catalyst component comprises a non-stereospecific solid catalyst component, which comprises Ti, Mg and halogen, as well as some amount of the (co) polymer of alpha-olefin CH₂= CHR¹, where R¹ represents a hydrocarbon group of C₁-C₁₂ in the range from 0.1 to 500 g per gram of mentioned solid catalyst component. Mentioned (co) polymer has isotacticity, expressed in terms of isotactic pentads, amounting to more than 60 molar %, and the intrinsic viscosity measured in tetralin at 135°C with the volume of at least 1.0 dl/g. The catalyst system for olefin polymerization is also described, as well as the method of (co) polymerization of ethylene and method for preparation of preliminary polymerized catalyst component.

EFFECT: use of the prepolymerized catalyst in the polymerization of ethylene with high yield of product and regular morphology.

14 cl, 7 tbl, 4 ex