Cocatalytic composition which is usable for the polymerization of alpha-olefins
AssigneeSolvay SA
InventorsPaul Fiasse, Herve Collette
Life of this patent
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Abstract
Cocatalytic composition resulting from bringing an organoaluminium halide (A) into contact with an electron-donating organic compound (ED) selected from esters, amides and ketones, the organoaluminium halide (A) possessing an atomic ratio halogen (X)/aluminium (Al) of greater than 1 and less than 1.3, the halide (A) and the compound (ED) being employed in a mole ratio halide (A)/compound (ED) of greater than 20. Catalytic systems which are usable for the polymerisation of alpha-olefins, comprising such a cocatalytic composition--and a solid based on titanium trichloride complexed with an electron-donating compound.
Claims21
A cocatalytic composition capable of being stored, resulting from bringing an organoaluminium halide (A) into contact with an electron-donating organic compound (ED) selected from carboxylic acid esters, amides and ketones, the organoaluminium halide (A) having an atomic ratio halogen (X)/aluminium (Al) of greater than 1 and less than 1.3, and the halide (A) and the compound (ED) having a mole ratio halide (A)/compound (ED) of greater than about 20.
Dependencies are inferred from the claim text.