MAGNESIUM DICHLORIDE-CONTAINING ADDUCTS AND CATALYTIC COMPONENTS OBTAINED WITH THEM

FIELD: chemistry. ^ SUBSTANCE: described are solid Lewis adducts, containing MgCl2, Lewis base (LB), belonging to simple ethers, complex alkyl esters of C1-C10 aliphatic carboxylic acids, ketones, silanes or amines, and alcohol ROH, where R represents C1-C15 carbon group, optionally substituted with heteroatom-containing groups, said compounds being in molar ratio with each other, which is determined by the following formula MgCl2(ROH)m(LB)n(H2O)p, in which m lies in interval from 0.05 to 6, n lies in interval from 0.08 to 6 and p lies in interval from 0.01 to 0.6. Also described is method of obtaining said solid Lewis adduct, including (i) contacting of MgCl2, alcohol ROH and Lewis base LB optionally in presence of inert liquid thinner; (ii) heating of system to temperature of mixture melting and sustaining said conditions in order to obtain fully melted adduct; and (iii) quick cooling of melted adduct and obtaining as a result its hardening; also described are catalytic components obtained during contacting of described above adducts with compounds of titanium of formula Ti(OR)nXy-n, where n equals from 0 to y, y represents titanium valency, X represents halogen and R represents alkyl radical, which has 1-10 carbon atoms, or COR group, and containing electron donor, selected from complex esters, simple ethers, amines and ketones; described is catalytic system for alpha-olefin polymerisation and method of olefin polymerisation. ^ EFFECT: good morphological stability of catalyst and high polymerisation activity. ^ 24 cl, 2 tbl, 38 ex