METHOD FOR OLEFIN POLYMERIZATION Russian patent published in 2007 - IPC C08F4/654 C08F4/642 C08F10/06 

FIELD: organic chemistry, polymers, in particular method for olefin polymerization.

SUBSTANCE: invention relates to method for CH₂=CHR olefin polymerization wherein R represents hydrogen or C₁-C₁₂-hydrocarbon group to produce polymer with increased bulk density; catalytic component and catalyst useful in said method. Catalytic component contains at least two fraction (A) and (B), wherein both contain Mg, Ti and halogen as essential elements. Said catalytic component contains 1-60 mass % of (B) fraction whish has less mean diameter than (A) component by 75 % or less. Catalyst of olefin polymerization is obtained by interaction of abovementioned catalytic component organometal compounds of metals from 1-3 groups of Periodical system, optionally in presence of electron-attractive compound. Method for olefin polymerization is carried out in presence of catalytic component (A), containing Mg, Ti and halogen as essential elements and catalytic component (B), also containing Mg, Ti and halogen as essential elements which makes it possible to produce polymer with less mean particle size than mean particle size of polymer obtained with catalytic component (A) at the same polymerization conditions.

EFFECT: method of high productivity; polymer of high bulk density.

25 cl, 6 ex, 1 tbl