| Patent Number |
Title Of Patent |
Date Issued |
| 5086024 |
Catalyst system for polymerization of olefins |
February 4, 1992 |
| A catalyst system for the polymerization of olefins is disclosed which comprises a metallocene component, for example, organometallic coordination compounds of a Group IVB or Group VB hydrolysis products comprising methane and C.sub.2 or higher alkanes, such as isobutane, n-butane or |
| 5063188 |
Catalyst component for ethylene polyermization and copolymerization |
November 5, 1991 |
| A catalyst component, adapted for use in the polymerization and copolymerization of ethylene, is formed by reaction of an organomagnesium compound and a tetraaalkyl silicate, contact of the resulting product with a chlorinating reagent, and treatment of the product from the previous |
| 5059703 |
Hydrocarbon soluble copper alkoxide compositions |
October 22, 1991 |
| Copper alkoxy alkoxides of the formula CuOR or Cu(OR).sub.2, where R is derived from an alkoxy alkanol of from 3 to 8 carbon atoms, are superconducting ceramic precursors. They can be formed by reacting an alkoxy alkanol with a copper alkoxide. Compositions containing theser alkoxide |
| 5041585 |
Preparation of aluminoxanes |
August 20, 1991 |
| Aluminoxanes can be produced by contacting an organic solvent containing a trialkylaluminum compound with an atomized spray of water. If desired, a pore-formed aluminoxane can be present as a reaction moderator. |
| 5041584 |
Modified methylaluminoxane |
August 20, 1991 |
| Methylaluminoxane can be formed by the reaction of a tetraalkyldialuminoxane containing C.sub.2 or higher alkyl groups with trimethylaluminum with the trimethylaluminum being present in an amount which is not present in stoichiometric excess. Another embodiment of the present inventi |
| 5015750 |
Preparation of trimethylaluminum |
May 14, 1991 |
| Trimethylaluminum can be formed by reacting a methylaluminum chloride, such as dimethylaluminum chloride, with sodium in the presence of an effective amount of an alkali or alkaline earth metal fluoride (e.g., sodium fluoride) to enhance the reaction. |
| 4960878 |
Synthesis of methylaluminoxanes |
October 2, 1990 |
| Methylaluminoxane can be formed by the reaction of a tetraalkyldialuminoxane containing C.sub.2 or higher alkyl groups with trimethylaluminum with the trimethylaluminum being present in an amount which is not present in stoichiometric excess. Another embodiment of the present inventi |
| 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 |
| 4904788 |
Hydrocarbon-soluble complexes of magnesium alkoxides with magnesium amides |
February 27, 1990 |
| Hydrocarbon-soluble complexes of magnesium alkoxides with magnesium amides are described. The magnesium amide moiety is derived from an amine (e.g., an N-heterocyclic amine). The complexes can be formed by reaction between a magnesium alkyl and a mixture of aliphatic alcohols and an amin |
| 4885406 |
Hydrocarbon-soluble complexes of magnesium alkoxides with magnesium aryl oxides |
December 5, 1989 |
| Hydrocarbon-soluble complexes of magnesium alkoxides with magnesium aryl oxides are described. The magnesium aryl oxide moiety is derived from a hindered aromatic alcohol. The complexes can be formed by reaction between a magnesium alkyl and a mixture of aliphatic alcohols and a hindered |
| 4876318 |
Organoaluminum coupling agents and filled polymer compositions thereof |
October 24, 1989 |
| Compounds of the formula ##STR1## where R is alkyl, R' is independently selected from alkyl and aryl, and n ranges from 1 to 8 are useful as coupling agents in filled polymer compositions, e.g., in filled, polar polymers such as polybutylene terephthalate. |
| 4875941 |
Deactivation of reactive organometallic contaminated equipment |
October 24, 1989 |
| Equipment which is contaminated with an organometallic residue is treated with gaseous carbon dioxide to react with the organometallic compounds contained in the equipment. |
| 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, |
| 4849574 |
Synthesis of olefins from ketones or aldehydes using bis(alkylchloroalumino)methane |
July 18, 1989 |
| Ketones or aldehydes are methylenated to form the corresponding olefin by reaction with a bis(alkylchloroalumino)methane, e.g., in the form of its dietherate. |
| 4847239 |
Hydrocarbon soluble copper alkoxide compositions |
July 11, 1989 |
| Copper alkoxy alkoxides of the formula CuOR or Cu(OR).sub.2, where R is derived from an alkoxy alkanol of from 3 to 8 carbon atoms, are superconducting ceramic precursors. Compositions containing these alkoxides solubilized in an organic solvent, such as toluene, can be prepared by t |
| 4841082 |
Preparation of dimethylzinc |
June 20, 1989 |
| Dimethylzinc is prepared by heating a dimethylaluminum halide, e.g., dimethylaluminum chloride, and a dialkylzinc, e.g., diethylzinc, with distillative removal of dimethylzinc from the reaction mixture which results therefrom. |
| 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. |
| 4788368 |
Synthesis of olefins from ketones using a bis(substituted alumino) substituted methane |
November 29, 1988 |
| Ketones are alkylenated to form the corresponding olefin by reaction with a bis(substituted alumino)substituted methane, e.g., in the form of its dietherate. |
| 4788367 |
Synthesis of olefins from ketones using bis(alkylchloroalumino)methane |
November 29, 1988 |
| Ketones are methylenated to form the corresponding olefin by reaction with a bis(alkylchloroalumino)methane, e.g., in the form of its dietherate. |
| 4785125 |
Synthesis of bis(dichloroalumino)methane |
November 15, 1988 |
| A process for the synthesis of bis(dichloroalumino)methane, with a lessened danger of runaway reaction, entails the gradual addition of methylene bromide to a heated mixture of aluminum and methylene chloride. An aluminum alkyl activator is also advantageously present as a scavenger for |
| 4774214 |
Fluoroalkoxyaluminum compounds and their use in polymerization processes |
September 27, 1988 |
| Novel compounds having the formulain which R is a C.sub.1 -C.sub.6 alkyl group, R.sub.f is a C.sub.1 -C.sub.6 fluoroalkyl group, and 0.ltoreq.n<3 have been found suitable as Ziegler-Natta type co-catalyst components for polymerization or co-polymerization of olefins. |
| 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. |
| 4547477 |
Organomagnesium solutions of low viscosity |
October 15, 1985 |
| The viscosity of hydrocarbon solutions of dialkylmagnesium compounds are reduced by using a reducing agent comprising a defined benzene derivative, a substance produced by reacting such a benzene derivative with magnesium or a dialkylmagnesium compound or a mixture of one of the foregoin |
| 4394326 |
Preparation of alkenoxy aluminum compounds and compounds produced |
July 19, 1983 |
| A process for the production of cis and trans isomers of compounds having the formula ##STR1## in which R, R' and R" are independently hydrogen or alkyl groups having from 1 to 20 carbon atoms, comprising(a) reacting the corresponding cis or trans isomer of a compound having the |
| 4341910 |
Preparation of unsaturated alcohols |
July 27, 1982 |
| A process for the production of cis and trans isomers of compounds having the formula ##STR1## in which R, R' and R" are independently hydrogen or alkyl groups having from 1 to 20 carbon atoms, comprising(a) reacting the corresponding cis or trans isomer of a compound having the |
| 4325840 |
Organomagnesium complexes |
April 20, 1982 |
| Organomagnesium complexes, which have the formula:wherein RM is an organozinc or organoboron compound, R' is a primary alkyl or aryl group, and having an m:n ratio of about 1 or greater, are disclosed. These complexes are prepared by reacting magnesium with an organohalide selected from |
| 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 |
| 4231896 |
Organomagnesium complexes |
November 4, 1980 |
| Organomagnesium complexes, which have the formula:wherein RM is an organozinc or organoboron compound, R' is a primary alkyl or aryl group, and having an m:n ratio of about 1 or greater, are disclosed. These complexes are prepared by reacting magnesium with an organohalide selected from |
| 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 |
| 4178297 |
Preparation of unsaturated alcohols and intermediates therein |
December 11, 1979 |
| This invention relates to the preparation of unsaturated alcohols useful as flavor and fragrance compounds. More specifically, this invention relates to the preparation of predominately cis-unsaturated alcohols by reacting a cis-1-alkenylaluminum dialkyl compound with an epoxide compound |
| 4155926 |
Compounds |
May 22, 1979 |
| Novel organoaluminum compounds having the general formula: ##STR1## wherein Z is (--CH.sub.2 CH.sub.2 --); X is chloro-, bromo-, or iodo-, and n is 1, except that when X is chloro-, n is a number from 2 to 20, are disclosed. The compounds are prepared by reacting aluminum metal with |
| 4133824 |
Organo-magnesium complexes and process for their preparation |
January 9, 1979 |
| Hydrocarbon soluble organo-magnesium complex of the formulawherein R is a hydrocarbyl group or ##STR1## wherein R.sup.2 is a hydrocarbyl group. R' is a primary alkyl group having 1 to 25 carbon atoms, or phenyl group, or mixture thereof, M is a group IIA or group IIIA metal and a is |
| 4133815 |
Preparation of unsaturated alcohols |
January 9, 1979 |
| This invention relates to the preparation of unsaturated alcohols useful as flavor and fragrance compounds. More specifically, this invention relates to the preparation of predominantly cis-unsaturated alcohols by reacting a cis-1-alkenylaluminum dialkyl compound with an epoxide compound |
| 4128501 |
Process for the preparation of organo-magnesium complexes |
December 5, 1978 |
| Hydrocarbon soluble organo-magnesium complex of the formulawherein R is a primary, secondary or tertiary alkyl group having from 1 to 25 carbon atoms. R' is a primary alkyl group having 1 to 25 carbon atoms, or phenyl group, or mixture thereof, and m and n are numbers such that the ratio |
| 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 |
| 4118409 |
Process for the simultaneous production of trimethylaluminum and alkylaluminum halides |
October 3, 1978 |
| An economically attractive Redistribution Process for the production of trimethylaluminum and numerous alkylaluminum bromides and iodides is described herein. The Redistribution Process is a chemical reequilibration reaction which consists of forming a mixture of a methylaluminum bromide |
| 4116992 |
Process for the simultaneous manufacture of dimethylaluminum chloride and alkylaluminum chloride |
September 26, 1978 |
| A redistribution process for the simultaneous production of dimethylaluminum chloride and numerous alkylaluminum chlorides is described herein. The redistribution process is a chemical reaction which consists of first forming a mixture of methylaluminum dichloride and at least one al |
| 4113783 |
Reduction of triphenylphosphine oxide to triphenylphosphine |
September 12, 1978 |
| Triphenylphosphine oxide is reduced to triphenylphosphine by the steps of(a) reacting triphenylphosphine oxide with a dialkylaluminum hydride either formed externally to the reaction system or generated in situ by the application of heat to a trialkylaluminum in which at least one alkyl |
| 4110357 |
Intermediates for preparation of unsaturated alcohols |
August 29, 1978 |
| This invention relates to the preparation of unsaturated alcohols useful as flavor and fragrance compounds. More specifically, this invention relates to the preparation of predominately cis-unsaturated alcohols by reacting a cis-1-alkenyl-aluminum dialkyl compound with an epoxide compoun |
| 4101568 |
Production of dialkylaluminum hydrides |
July 18, 1978 |
| Dialkylaluminum hydrides are produced by subjecting a mixed aluminum alkyl having the formulato pyrolysis. R is methyl, ethyl, n-alkyl or an alkyl group which has no hydrogen atoms on the carbon atom .beta. to the aluminum. R' is an .alpha.- or .beta. branched alkyl group having the form |
| 4069260 |
Preparation of unsaturated alcohols |
January 17, 1978 |
| This invention relates to the preparation of unsaturated alcohols useful as flavor and fragrance compounds. More specifically, this invention relates to the preparation of predominately cis-unsaturated alcohols by reacting a cis-1-alkenylaluminum dialkyl compound with an epoxide compound |
| 3946058 |
Process for recovering of dialkylaluminum halide from mixtures containing soluble zinc |
March 23, 1976 |
| A process is disclosed for the recovery of dialkylaluminum halides from a mixture containing dialkylaluminum halides and soluble zinc containing compounds by heating the mixture to pyrolyze the zinc compounds down to acceptable levels and subsequently distilling the alkylaluminum halide |
