CATALYST FOR PROPYLENE POLYMERIZATION Russian patent published in 1997 - IPC

FIELD: chemical technology. SUBSTANCE: catalyst has, mas. p.: triethylaluminium 5.00; electron-donor compound 1.00; solid component (as measured for titanium) 0.017. Solid component - product of magnesium compound interaction of the general formula MgCl₂•2C₂H₅OH,, titanium tetrachloride and isobutylphthalate at mole ratio = 27:1:4.5. Content of magnesium, titanium and diisobutylphthalate in solid component at mole ratio = 14:1:0.6. Electron-donor compound is taken from the group involving: 2-isopropyl-2-isobutyl-1,3-dimethoxypropane, 2-isopropyl-2-cyclohexyl-1,3-dimethoxypropane, 2-isopropyl-2-cyclopentyl-1,3-dimethoxypropane, 2,2-dicyclopentyl-1,3-dimethoxypropane, 2-(1,5-dimethylhexyl)-2-(3,7-dimethyloctyl)-1,3-dimethoxypropane and 2-phenyl-2-methyl-1,3-dimethoxypropane. EFFECT: enhanced effectiveness of catalyst. 3 tbl