Process for the homo- and co-polymerization of .alpha.-olefins
AssigneeRuhrchemie Aktiengesellschaft
InventorsMufit Bahadir, Wolfgang Payer
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Abstract
A catalyst for the polymerization of olefins is described wherein a titanium(IV) compound is reduced with an organoaluminum compound in the presence of atactic poly-.alpha.-olefin. Polymerization with the catalyst is also disclosed.
Claims3
In a process for the homo- and co-polymerization of a .alpha.-olefin at 30.degree. to 120.degree. C. and 2 to 100 bars in the presence a catalyst system comprising a microcrystalline titanium(III) compound prepared by the reduction of a titanium(IV) compound with an organoaluminum or organomagnesium compound in a neutral organic solvent which dissolves both reactants, and of an organoaluminum compound as activator, the improvement wherein the reduction of the titanium(IV) compound is effected in the presence of from 0.2 to 5 weight percent of an atactic poly-.alpha.-olefin, based on the weight of the solvent.
Dependencies are inferred from the claim text.