METHOD OF PREPARING HIGH MOLECULAR WEIGHT α-OLEFINIC POLYMERS IN SOLUTION Russian patent published in 1998 - IPC

FIELD: chemistry of polymers. SUBSTANCE: present invention describes preparation of high molecular weight α-olefinic polymers in solution by reacting ethylene or mixture of ethylene and higher α alphaolefin, catalyst prepared by using alkyl compounds of magnesium, aluminium, tert-butyl chloride, Ti compounds, alcohol and inert hydrocarbon solvent. Catalyst is prepared by using various procedures (A) and (B), formation and stirring of catalyst components being carried out in stream at temperature lower than 30 C. The claimed method is advantageous in that process is carried out at high temperatures with working catalyst activity retained, catalyst residue being present in the polymer. EFFECT: more efficient preparation method. 4 cl, 7 ex, 7 tbl