Catalysts for the polymerization of olefins

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

C - Chemistry, Metallurgy

08

F

402/576, 402/638

C08F 10/00 (2006.01) C08F 4/64 (2006.01)

Patent

CA 1263366

ABSTRACT Catalysts for the polymerization of olefins comprising the reaction product of an aluminum alkyl compound, an electron donor compound EDB and supported components. The electron-donor compound is reactive with MgC12 but does not form complexes with the aluminum alkyl compound. The catalyst components comprise a tetravalent titanium halogenated compound and an electron-donor compound EDA which are supported on titanium or vanadium trichloride or tribromide having a surface area of at least 100m2/mg. The electron-donor compound is characterized in that it is extractable with AlEt3 (under standard conditions) to an extent of at least 70 mole %. The catalysts are suitable for use in polymerizing olefins, particularly ethylene.

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