Abstract: Adducts of a trialkylaluminum or a dialkylaluminum hydride and diisoalkenyl benzene compounds have been discovered. Catalyst components for the polymerization of olefins have also been developed which comprise, as the cocatalyst, the reaction product of a trialkylaluminum or a dialkylaluminum hydride (e.g., diisobutylaluminum hydride) and an alkenyl-substituted benzene (e.g., diisopropenyl benzene).

Abstract: Aluminum-containing compositions for use particularly as olefin polymerization or copolymerization cocatalysts are produced by reaction of trialkylaluminums or dialkylaluminum hydrides with 1,3- or 1,4-pentadiene at a mole ratio of aluminum compound to pentadiene of approximately 1:1, with removal during the reaction of evolved olefin.

Abstract: Aluminum alkyl vapor is removed from a gas stream by scrubbing with a hydrocarbon scrubbing liquid containing a long chain carboxylic acid dissolved therein.

Abstract: Dialkylaluminum chloride produced as a co-product in the reaction of a trialkylaluminum with zinc chloride or metallic zinc and an alkyl halide, to produce a dialkylzinc, is purified from contaminants containing zinc by contacting it with a dialkylaluminum hydride, followed by distillation.

Abstract: The viscosity of hydrocarbon solutions of dialkylmagnesium compounds is reduced by including as the viscosity reducing agent a nitrogen-containing compound which is a piperidine substituted with a hydrocarbyl group (preferably a C.sub.1 -C.sub.6 alkyl, C.sub.6 -C.sub.9 aryl or C.sub.5 -C.sub.6 cycloalkyl group) at the 2-position and optionally further substituted, triethylamine, cyclohexylamine, dicyclohexylamine, or N-N-dimethylformamide, or a mixture of two or more of these nitrogen-containing compounds. The viscosity reducing agent may be used as such or in the form of a substance produced by reacting such a nitrogen-containing compound with magnesium or with a dialkylmagnesium compound. The viscosity reducing agent may be used alone, or in a mixture with an organoaluminum viscosity reducing agent.

Abstract: Dialkylaluminum chloride produced as a co-product in the reaction of a trialkylaluminum with zinc chloride or metallic zinc and an alkyl halide, to produce a dialkylzinc, is purified from contaminants containing zinc by contacting it with an alkylaluminum sesquihalide, followed by distillation.

Abstract: Post-precipitation of solids from a hydrocarbon solution of an organomagnesium compound is prevented by addition of an appropriate amount of an alkyllithium compound.

Abstract: A low viscosity liquid solution is described, comprising(a) a hydrocarbon-soluble dialkylmagnesium compound of 4 to 20 carbon atoms per molecule(b) a solvent selected from the group consisting of aliphatic, alicyclic, and aromatic hydrocarbons of 5 to 20 carbon atoms, and(c) an organometallic additive selected from the group consisting of R.sub.3 Ga, R.sub.3 In, and RLi, in which R is C.sub.1 -C.sub.12 alkyl or C.sub.5 -C.sub.7 cycloalkyl.Also disclosed is a method of preparing such a solution by in situ generation of the dialkylmagnesium compound via the reaction between metallic magnesium and the appropriate alkyl halide in the presence of both the solvent and the organometallic additive.

Abstract: A composition of matter is disclosed comprising a dialkylmagnesium compound of the formulaRMgR'in which R and R' are straight-chain alkyl groups of 1 to 4 carbon atoms each, either identical in length or differing by one carbon atom, and an aluminum diene polymer. The composition is soluble in aliphatic, cycloaliphatic, and aromatic hyrocarbon solvents.

Abstract: Novel organoaluminum compounds having the formula XYA1 ##STR1## in which X is a halogen, Y is an alkyl group having from 1 to 10 carbon atoms, a phenyl group or a halogen, R is an alkyl group having from 2 to 9 carbon atoms, and n is an integer from 1 to 20. These compounds are less viscous and more soluble in hydrocarbon solvents than are corresponding ethylene-based or butadiene-based compounds. The novel compounds are prepared by the reaction of alkylaluminum dihalides or aluminum trihalides with a terminal olefin having from 3 to 10 carbon atoms in the presence of aluminum metal.

Abstract: A composition of matter comprising di-n-butylmagnesium and dimethylmagnesium, to the exclusion of dialkylmagnesium compounds containing alkyl groups other than n-butyl or methyl, with an n-butyl:methyl alkyl group ratio of about 0.2:1 to about 5:1 which is soluble in aliphatic, cycloaliphatic, and aromatic hydrocarbon solvents is disclosed. The composition is prepared in the substantial absence of oxygen and moisture by the simultaneous or consecutive reactions of methyl and n-butyl halides with metallic magnesium in the presence of the hydrocarbon solvent, followed by separation of the insoluble magnesium chloride and any unreacted magnesium metal from the resulting solution.

Abstract: A composition of matter is disclosed comprising dimethylmagnesium, di-n-propylmagnesium and optionally diethylmagnesium. The composition is soluble in aliphatic, cycloaliphatic, and aromatic hydrocarbon solvents without the aid of solubilizing agents. The composition is prepared in the substantial absence of oxygen and moisture by the simultaneous or consecutive reactions of methyl, ethyl, and n-propyl halides with metallic magnesium in the presence of the hydrocarbon solvent, followed by separation of the insoluble magnesium halide and any unreacted magnesium metal from the resulting solution.

Abstract: Novel organoaluminum compounds having the formula ##STR1## in which X is a halogen, Y is an alkyl group having from 1 to 10 carbon atoms, a phenyl group or a halogen, R is an alkyl group having from 2 to 9 carbon atoms, and n is an integer from 1 to 20. These compounds are less viscous and more soluble in hydrocarbon solvents than are corresponding ethylene-based or butadiene-based compounds.The novel compounds are prepared by the reaction of alkylaluminum dihalides or aluminum trihalides with a terminal olefin having from 3 to 10 carbon atoms in the presence of aluminum metal.

Abstract: A composition of matter comprising di-n-butylmagnesium and diethylmagnesium with a n-butyl:ethyl alkyl group ratio of about 0.25:1 to about 4:1 which is soluble in aliphatic, cycloaliphatic, and aromatic hydrocarbon solvents is disclosed. The composition is prepared in the substantial absence of oxygen and moisture by the simultaneous or consecutive reactions of ethyl and n-butyl halides with metallic magnesium in the presence of the hydrocarbon solvent, followed by separation of the insoluble magnesium chloride and any unreacted magnesium metal from the resulting solution.