Catalysts for the polymerization of olefins

Details Catalysts for the polymerization of olefins Catalysts for the polymerization of olefins

C - Chemistry, Metallurgy

08

F

C08F 4/42 (2006.01) C08F 4/06 (2006.01) C08F 10/00 (2006.01)

Patent

CA 2080147

CATALYSTS FOR THE POLYMERIZATION OF OLEFINS. Abstract A catalyst for the polymerization of olefins, containing magnesium, chlorine, aluminium and at least one transition metal, in a dispersed or emulsified form within an inert diluent, is obtained by: - contacting, in an inert diluent, a magnesium dialkyl and aluminium trichloride, in a molar ratio equal or almost equal to 2/1, at a temperature lower than 105°C to obtain a catalyst precursor in a suspended form, or at a temperature higher than 105°C to form a catalyst precursor in the form of a colloidal emulsion, in the diluent used; and - contacting said suspended or emulsified precursor with at least one compound of a transition metal to form a catalyst in the form of a suspension or emulsion respectively.

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