ORGANOMETALLIC COMPOUND SUITABLE AS COCATALYST IN POLYMERIZATION OF OLEFINS Russian patent published in 2005 - IPC

FIELD: polymerization catalysts.

SUBSTANCE: invention relates to novel organometallic compounds and to olefin polymerization catalytic systems including such organometallic compounds, and also to a method for polymerization of olefins conduct in presence of said catalytic system. Novel organometallic compound is prepared by bringing into contact (i) compound of general formula I: (I), where R^a, R^b, R^c, and R^d, identical or different, represent hydrocarbon groups; and (ii) Lewis acid of general formula MtR13

, where Mt represents boron atom and R¹, identical or different, are selected from halogen and halogenated C₆-C₃₀-aryl groups.

EFFECT: enabled preparation of novel olefin polymerization cocatalysts, which reduce use of excess cocatalyst relative to alkylalumoxanes, do not lead to undesired by-products after activation of metallocene, and form stable catalytic compositions.

14 cl, 1 tbl, 32 ex