Stereoselective catalyst for the polymerization of olefins

Details Stereoselective catalyst for the polymerization of olefins Stereoselective catalyst for the polymerization of olefins

C - Chemistry, Metallurgy

08

F

C08F 4/64 (2006.01) C08F 4/642 (2006.01) C08F 10/00 (2006.01) C08F 110/06 (2006.01)

Patent

CA 2055140

In the invention a procatalyst of a catalyst system of a new type intended for the polymerization of olefins has been prepared comprising a carrier based on a magnesium compound, a titanium compound and a dialkylester of phthalic acid. The most important properties of this kind of a procatalyst are the high stereoselectivity and the high activity. Now it has been possible to increase the activity considerably by using a different kind of dialkylester of phthalic acid having in its alkyl 9 to 20 carbon atoms and the dielectricity constant of which being preferably below 5 measured at 25°C.

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