Process for preparing polyolefins

Details Process for preparing polyolefins Process for preparing polyolefins

C - Chemistry, Metallurgy

08

F

402/565

C08F 2/04 (2006.01) C08F 2/34 (2006.01) C08F 10/00 (2006.01)

Patent

CA 2029639

Polyolefins exhibiting better particle properties are prepared by polymerizing an olefin or olefins in the presence of a catalyst comprising a solid catalyst component being prepared by the reaction of the following components [I] and [II]: [I] a reaction product obtained by reacting the following components (1), (2) and (3) with one another: (1) a silicon oxide and/or an aluminum oxide; (2) a reaction product obtained by tile reaction of a magnesium halide and compound represented by the general formula Me(OR)n X z-n wherein Me represents an element of Groups I to IV in the Periodic Table, z represents the valence of the element Me, n is O < n ~ z, X is a halogen atom, and R is a hydrocarbon radical having 1 to 20 carbon atoms; and (3) a titanium compound represented by the general formula Ti(OR)n X4-n wherein R is a hydrocarbon radical having 1 to 20 carbon atoms, X is a halogen atom, and n is O~n~4, in the presence of a compound represented by the general formula ROH wherein R is a hydrocarbon radical having 6 to 20 carbon atoms or an organic residue containing suchan element as oxygen, nitrogen, sulfur, or chlorine; and [II] an organoaluminum compound represented by the general formula AlR n X3-n wherein R is a hydrocarbon radical having 1 to 24 carbon atoms, X is a halogen atom, and n is 0 < n <3.

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