| Patent Number |
Title Of Patent |
Date Issued |
| 4910178 |
Olefin polymerization or copolymerization catalyst components |
March 20, 1990 |
| 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 dialky |
| 4851378 |
Olefin polymerization of copolymerization catalyst components |
July 25, 1989 |
| 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, |
| 4826665 |
Removal of aluminum alkyl vapor from gas stream |
May 2, 1989 |
| Aluminum alkyl vapor is removed from a gas stream by scrubbing with a hydrocarbon scrubbing liquid containing a long chain carboxylic acid dissolved therein. |
| 4732992 |
Method for recovery of alkylaluminum halides |
March 22, 1988 |
| 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 distillati |
| 4707462 |
Organomagnesium solutions of low viscosity |
November 17, 1987 |
| 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 |
| 4670571 |
Method for recovery of alkylaluminum halides |
June 2, 1987 |
| 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 di |
| 4615843 |
Treatment of hydrocarbon solutions of dialkylmagnesium compounds to reduce the content of solubl |
October 7, 1986 |
| Post-precipitation of solids from a hydrocarbon solution of an organomagnesium compound is prevented by addition of an appropriate amount of an alkyllithium compound. |
| 4299781 |
Organomagnesium solutions of low viscosity |
November 10, 1981 |
| 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 organometalli |
| 4263217 |
Hydrocarbon-soluble magnesium-aluminum compositions |
April 21, 1981 |
| A composition of matter is disclosed comprising a dialkylmagnesium compound of the formulain 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 i |
| 4242481 |
Aluminum oligomers as polymerization catalysts |
December 30, 1980 |
| 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 |
| 4222969 |
Hydrocarbon soluble magnesium compositions of high magnesium content |
September 16, 1980 |
| 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, cyclo |
| 4207207 |
Hydrocarbon soluble magnesium compositions of high magnesium content |
June 10, 1980 |
| 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 |
| 4170603 |
Novel substituted methylene bridged aluminum oligomers |
October 9, 1979 |
| 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 v |
| 4127507 |
Hydrocarbon soluble straight-chain di-(lower alkyl) magnesium compositions |
November 28, 1978 |
| 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 ab |
