| Patent Number |
Title Of Patent |
Date Issued |
| 6046347 |
Aluminoxane synthesis employing reduced amount of trialkylaluminum compound |
April 4, 2000 |
| A catalytically active aluminoxane can be synthesized from a precursor formed by the combination of at least one trialkylaluminum compound and at least one organoaluminum compound containing a carbon-oxygen bond therein, such as an alkoxy group-containing organoaluminum compound of the f |
| 5910270 |
Viscosity reduction of organomagnesium solutions |
June 8, 1999 |
| Hydrocarbon solutions of a dialkylmagnesium compound having reduced viscosity contain: (a) a hydrocarbon solvent; (b) a dialkylmagnesium compound normally soluble in hydrocarbon solvents; and (c) an effective viscosity reducing amount of a compound selected from the group consisting |
| 5831109 |
Polyalkylaluminoxane compositions formed by non-hydrolytic means |
November 3, 1998 |
| The present invention relates to a process which comprises the non-hydrolytic transformation of an aluminoxane precursor composition, comprising carbon-to-oxygen bonds which can be alkylated by an alkylaluminum moiety, into a catalytically useful aluminoxane composition. In one embod |
| 5777143 |
Hydrocarbon soluble alkylaluminoxane compositions formed by use of non-hydrolytic means |
July 7, 1998 |
| A hydrocarbon-soluble alkylaluminoxane composition, such as, methylaluminoxane or even a modified methylaluminoxane, can be prepared by preparing an alkylaluminoxane precursor via non-hydrolytic means, such as, by treating at least one trialkylaluminum compound with a compound contai |
| 5731451 |
Modified polyalkylauminoxane composition formed using reagent containing aluminum trialkyl silox |
March 24, 1998 |
| A process is disclosed for forming an aluminoxane composition comprising methylaluminoxane by mixing trimethylaluminum, or a mixture of trimethylaluminum and one or more other trihydrocarbylaluminum compounds, with an organoaluminum compound containing a trialkylsiloxide moiety and t |
| 5728855 |
Modified polyalkylaluminoxane composition formed using reagent containing carbon-oxygen double b |
March 17, 1998 |
| The present invention relates to a process for forming a composition comprising oligomeric alkylaluminoxane, e.g., preferably methylaluminoxane, and moieties having the structure--OC(R).sub.3, where R is, for example, methyl, which comprises initially treating a composition comprisin |
| 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 |
| 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 |
| 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 |
| 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. |
| 4851489 |
Long chain branching in polyolefins from Ziegler-Natta catalysts |
July 25, 1989 |
| Generally, linear polyethylene containing long chain branching is obtained by polymerizing ethylene in the presence of a catalyst comprising a transition metal compound such as titanium chloride, an organoaluminum compound represented by the formula R.sub.1 R.sub.2 AlR.sub.p wherein |
| 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 |
| 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. |
| 4732993 |
Fluoroalkoxyaluminum compounds and their use in polymerization processes |
March 22, 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. |
| 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 |
| 4727051 |
Production of halide-and alkoxy-containing magnesium compositions |
February 23, 1988 |
| Compositions having the formulain which X is chloro, bromo or iodo; R is a C.sub.1 -C.sub.10 alkyl group and n is a value from about 0.2 to about 1.9 are produced by a process comprising preparing an alkanol adduct of a magneisum halide, reacting the product of this step with metallic ma |
| 4720562 |
Novel titanium-containing reagents for methylenation and analogous reactions |
January 19, 1988 |
| Compositions which comprise a complex of:(a) a titanium-containing material having the formula ##STR1## in which X.sub.1 is cyclopentadienyl, chlorine, bromine or C.sub.1 -C.sub.6 alkoxy, X.sub.2 and X.sub.3 are chlorine, bromine, or C.sub.1 -C.sub.6 alkoxy; Y.sub.1 and Y.sub.2 are c |
| 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 |
| 4657998 |
Polyethylene with broad molecular weight distribution |
April 14, 1987 |
| Catalyst system comprising titanium containing catalyst component, isoprenylaluminum and a halohydrocarbon for the production of polyethylene having a broad molecular weight distribution. |
| 4593010 |
Polyethylene with broad molecular weight distribution |
June 3, 1986 |
| Catalyst system comprising titanium containing catalyst component, isoprenylaluminum and a halohydrocarbon for the production of polyethylene having a broad molecular weight distribution. |
| 4581467 |
Organoaluminum compounds and their method of preparation (P-1038) |
April 8, 1986 |
| An organoaluminum compound is provided, said organoaluminum compound being represented by the formula R.sub.1 R.sub.2 AlR.sub.p wherein R.sub.1 & R.sub.2 are the same or different hydrocarbyl groups having from 1 to 18 carbon atoms and R.sub.p is a polymeric hydrocarbyl group containing |
| 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 |
| 4500648 |
Long chain branching in polyolefins from ziegler-natta catalysts |
February 19, 1985 |
| Generally, linear polyethylene containing long chain branching is obtained by polymerizing ethylene in the presence of a catalyst comprising a transition metal compound such as titanium chloride, an organoaluminum compound represented by the formula R.sub.1 R.sub.2 AlR.sub.p wherein |
| 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 |
| 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 |
| 4170604 |
Production of dialkylaluminum hydrides |
October 9, 1979 |
| Dialkylaluminum hydrides are produced by subjecting a mixed aluminum alkyl having the formula R.sub.2 AlR' to 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 grou |
| 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 |
| 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 |
