Processes Of Preparing, Purifying Or Recovering Compounds Having Plural Carbons Bonded Directly To The Same Aluminum Patents (Class 556/187)
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Patent number: 5783717Abstract: A method for purifying an organometal compound by removing oxygen atom-containing compounds included in the organometal compound as impurities is herein disclosed. The method comprises the steps of mixing an organometal compound represented by the following formula: ##STR1## with a crude product including an oxygen atom-containing compound represented by the following formula: R.sub.3-n M.sup.1 (OR).sub.n or R.sub.2-m M.sup.2 (OR).sub.m and an alkylaluminum chloride represented by the formula: X.sub.6-q Al.sub.2 R and then distilling the resulting mixture. In the foregoing formulas, R's may be the same or different and each represents an alkyl group having 1 to 3 carbon atoms; M.sup.1 represents a trivalent metal element; M.sup.2 represents a divalent metal element; n is an integer of 1, 2 or 3; m is an integer of 1 or 2; q is an integer ranging from 1 to 5; and X represents a chlorine atom.Type: GrantFiled: August 21, 1995Date of Patent: July 21, 1998Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Hiromi Ohsaki, Toshinobu Ishihara, Kazuyuki Asakura, Isao Kaneko, Kouhei Satou
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Patent number: 5780697Abstract: A process for deactivating a nickel, cobalt, or nickel and cobalt displacement catalyst during a reaction wherein an alkyl group is displaced from a trialkyl aluminum compound in a reaction mixture containing said catalyst is disclosed. The process involves adding a deactivating amount of a catalyst poison containing silver, silver compounds, silver complexes, thallium, thallium compounds, thallium complexes, or mixtures thereof to the reaction mixture after the displacement has proceeded to the desired extent.Type: GrantFiled: June 17, 1997Date of Patent: July 14, 1998Assignee: Amoco CorporationInventors: Ronny Wen-Long Lin, Richard Andrew Holub, Richard Neil Hollenshead
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Patent number: 5777120Abstract: Aluminum amidinate compounds of the formula ##STR1## wherein R.sup., R.sup.2, and R.sup.3 are selected from the group consisting of C.sub.1 to C.sub.50 alkyl, aryl, and silyl groups, X is an anionic ligand, preferably a hydrocarbyl, n=0 or 1, L, if present, is a labile Lewis base ligand, preferably having an oxygen, nitrogen, or phosphorus atom donating a lone pair of electrons to the aluminum center, and A.sup.- is an anion which balances the charge of the aluminum cation and only weakly if at all coordinates to the aluminum center and preferably contains boron, are disclosed. These compounds are useful as olefin polymerization catalysts without the need for cocatalysts or transition metal species.Type: GrantFiled: March 14, 1997Date of Patent: July 7, 1998Assignee: University of Iowa Research FoundationInventors: Richard F. Jordan, Martyn P. Coles
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Patent number: 5777143Abstract: 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 containing an oxygen-carbon bond, adding to that precursor an effective amount of an organoaluminum compound which prevents formation of insoluble species, such as, a trialkylaluminum compound where each alkyl group contains two or more carbon atoms, and converting that modified precursor to an alkylaluminoxane, such as, by thermolysis. In a distinct embodiment of the invention, if an insoluble methylaluminoxane product is formed using the non-hydrolytic technique, it can be solubilized by treatment with a solubilizing amount of an alkylaluminoxane, prepared by either hydrolytic or non-hydrolytic means, wherein the alkyl moieties contain two or more carbon atoms.Type: GrantFiled: October 25, 1996Date of Patent: July 7, 1998Assignee: Akzo Nobel NVInventors: Dennis B. Malpass, Stanley W. Palmaka, Gregory M. Smith, Jonathan S. Rogers
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Patent number: 5744577Abstract: A process for preparing polylketones by polymerizing a mixture of carbon monoxide and one or more olefins in the presence of a group VIII metal catalyst which is prepared by reacting together:(a) a source of group VIII metal, and(b) an amine, phosphine, arsine or stibine the polymerization being carried out in the presence of a composition comprising hydrocarbyl aluminoxane and tertiary butyl aluminium.Type: GrantFiled: October 13, 1995Date of Patent: April 28, 1998Assignee: BP Chemicals LimitedInventor: Andrew David Poole
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Patent number: 5739368Abstract: Alumoxane, and especially methylalumoxane, which provide supported metallocene and/or transition metal catalyst compositions having increased activity are prepared by heating the alumoxane prior to placing it on the support.Type: GrantFiled: May 10, 1996Date of Patent: April 14, 1998Assignee: Albemarle CorporationInventors: Niomi L. Krzystowczyk, Steven P. Diefenbach, Edward A. Burt
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Patent number: 5731451Abstract: 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 then oxygenating the mixture to form the aluminoxane. Oxygenation can be carried out by controlled hydrolysis or by treatment with an organic compound containing carbon-oxygen bonds, such as carbon dioxide. A preferred trialkylsiloxide moiety is of the formula --OSi(CH.sub.3).sub.3, such as in a compound of the formula (CH.sub.3).sub.2 AlOSi(CH.sub.3).sub.3.Type: GrantFiled: July 12, 1996Date of Patent: March 24, 1998Assignee: Akzo Nobel NVInventors: Gregory M. Smith, Dennis B. Malpass, Stanley W. Palmaka
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Patent number: 5728855Abstract: 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 comprising trialkylaluminum with a reagent containing a carbon-oxygen double bond, such as, carbon dioxide, followed by hydrolysis of the resulting composition with water.Another embodiment of the invention a composition comprising oligomeric methylaluminoxane and greater than 10 mole % of moieties of the structure --OC(R).sub.3, where R is methyl, which, when such composition is hydrolyzed, there is an evolution of hydrolysis products of methane and at least one C.sub.2 or higher alkane, such as t-butane.Type: GrantFiled: May 22, 1996Date of Patent: March 17, 1998Assignee: Akzo Nobel NVInventors: Gregory M. Smith, Dennis B. Malpass
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Patent number: 5726332Abstract: Novel bimetallic organometallic compounds, their synthesis and application in polymerization catalyst system based on combination of such novel bimetallic organometallic compounds with transition metal complexes is provided.Type: GrantFiled: May 1, 1996Date of Patent: March 10, 1998Assignees: Witco GmbH, The Research Foundation of the State University of New YorkInventors: John J. Eisch, Wolfram Uzick, Katrin MacKenzie, Stefan Gurtzgen, Rainer Rieger
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Patent number: 5693261Abstract: Pentafluorophenylmagnesium halides are prepared by a Grignard exchange reaction of hydrocarbylmagnesium halide with pentafluorochlorobenzene. The pentafluorophenylmagnesium halides are converted to pentafluorophenyl metal or metalloid derivatives by reacting them with metal or metalloid halides such as BF.sub.3.Type: GrantFiled: August 9, 1995Date of Patent: December 2, 1997Assignee: Albemarle CorporationInventors: Niomi L. Krzystowczyk, Steven P. Diefenbach, Wendy L. Lemoine
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Patent number: 5670682Abstract: Stable liquid clathrate aluminoxane compositions are obtained by the reaction, in aromatic solvents, of aluminoxanes such as, methylaluminoxane, with organic, inorganic or organometallic compounds, such as salts, which can dissociate or partially dissociate into cationic and anionic species (M-X species).Type: GrantFiled: October 19, 1995Date of Patent: September 23, 1997Assignee: Albemarle CorporationInventor: Samuel A. Sangokoya
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Patent number: 5602269Abstract: New organometallic derivatives of group IIIA are described having general formula M(C.sub.6 F.sub.5).sub.3 wherein M is a metal of group IIIA selected from aluminium, gallium and indium.The above derivatives are prepared by exchange reaction between a metal alkyl MR.sub.3 with an organometallic derivative of boron having the formula B(C.sub.6 F.sub.5).sub.3.Type: GrantFiled: July 18, 1995Date of Patent: February 11, 1997Assignee: Enichem Elastomeri S.r.l.Inventors: Paolo Biagini, Gabriele Lugli, Luigi Abis, Piero Andreussi
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Patent number: 5536859Abstract: This invention provides an improved process for the preparation of an aluminum alkyl chain growth product by the chain growth reaction of alpha-olefins on aluminum alkyl, the improvement comprising catalyzing the chain growth reaction that is a partially oxidized aluminum alkyl.Type: GrantFiled: February 27, 1995Date of Patent: July 16, 1996Assignee: Amoco CorporationInventors: Kaung-Far Lin, Carroll W. Lanier, William B. Waites
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Patent number: 5498735Abstract: A process of producing an .alpha.-olefin which comprises carrying out separately the growth of ethylene with triethyl aluminum and the growth of ethylene with tributyl aluminum, displacing the resulting higher trialkyl aluminum with ethylene, thereby forming triethyl aluminum and an .alpha.-olefin, and displacing at least part of the resulting triethyl aluminum with butene contained in the resulting .alpha.-olefin, thereby forming tributyl aluminum.The present invention permits the efficient production of .alpha.-olefins containing linear .alpha.-olefins in extremely high purity. The .alpha.-olefins will find use as comonomers for polyolefins (whose demand is increasing recently) and also as raw materials of synthetic lubricants.Type: GrantFiled: July 18, 1994Date of Patent: March 12, 1996Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Kunio Takeuchi, Takao Tamura, Hironori Tashiro
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Patent number: 5403942Abstract: The invention relates to a process for the preparation of aluminoxanes by addition of water to a solution of trialkylaluminum in an inert solvent, characterized in that the water required for the reaction is metered via a mixing nozzle into a static mixer, in particular a jet loop reactor.Type: GrantFiled: March 16, 1994Date of Patent: April 4, 1995Assignee: Witco GmbHInventors: Ralf-Jurgen Becker, Stefan Gurtzgen, Rolf Schrader
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Patent number: 5380895Abstract: Method for forming metal alkyl compounds by the direct combination of metal halide, lithium metal, and alkyl or aryl halide and for purifying metal alkyl compounds by repeated sublimation/pumping cycles. The method can be used to produce metal alkyl compounds which are substantially free of volatile impurities.Type: GrantFiled: February 10, 1993Date of Patent: January 10, 1995Assignee: Bandgap Technology CorporationInventor: Terry Krafft
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Patent number: 5380898Abstract: The invention relates to a process for preparing trimethylaluminum from methylaluminum chlorides and sodium or magnesium which is characterized in that the components are reacted in a solids reactor.Type: GrantFiled: April 9, 1993Date of Patent: January 10, 1995Assignee: Hoechst AktiengesellschaftInventors: Stefan Gurtzgen, Jurgen Schneider, Rolf Schrader
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Patent number: 5371260Abstract: Novel primary and secondary amino-aluminoxane derivatives are prepared by reacting an aluminoxane and a primary or secondary amine in an organic solvent, heating the reaction mixture to form a homogeneous solution and filtering the solution.Type: GrantFiled: January 10, 1994Date of Patent: December 6, 1994Assignee: Albemarle CorporationInventor: Samuel A. Sangokoya
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Patent number: 5359116Abstract: The invention relates to a process for preparing tri-methylaluminum from methylaluminum chlorides and sodium in a suspending agent, the reactants being subjected to the shearing action of a rotor-stator machine.Type: GrantFiled: April 9, 1993Date of Patent: October 25, 1994Assignee: Witco GmbHInventors: Ralf J. Becker, Stefan Gurtzgen, Jurgen Schneider, Rolf Schrader
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Patent number: 5354433Abstract: Method for providing a proportioned gas flow of triisobutylaluminum from liquid triisobutylaluminum having isobutene admixed therein. The liquid is preheated sufficiently to evaporate the isobutene therefrom but leaving the triisobutylaluminum substantially in liquid phase. The vaporized isobutene is separated from the liquid triisobutylaluminum, and subsequently the triisobutylaluminum from which isobutene has been removed is evaporated. Preheating is conducted at a temperature of 30.degree.-40.degree. C. The evaporation of liquid triisobutylaluminum is conducted at a temperature of 40.degree.-60.degree. C.Type: GrantFiled: November 19, 1991Date of Patent: October 11, 1994Assignee: ASM International N.V.Inventors: Ernst H. A. Granneman, Laurens F. T. Kwakman, Hans W. Piekaar, Boudewijn G. Sluijk
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Patent number: 5288885Abstract: A tri-alkyl compound of a Group 3a metal is purified by a process in which a polyether of the formula ##STR1## wherein R independently is alkyl of 1 to 4 carbon atoms inclusive, each R' independently is hydrogen, methyl or ethyl; m is an integer from 1 to 6 inclusive; and n is an integer from 1 to 12 inclusive, is added to a composition comprising a tri-alkyl compound and the polyether. The adduct is heated to dissociate the adduct thermally into a mixture containing tri-alkyl compound of the Group 3a metal, and the mixture is subjected to distillation to recover the tri-alkyl compound of the Group 3a metal.Type: GrantFiled: November 5, 1992Date of Patent: February 22, 1994Assignee: Shell Research LimitedInventors: Cornelis J. Smit, Gerbrand J. M. Van Eijden, Theodorus P. J. Peters, Pieter J. Reuvers
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Patent number: 5274153Abstract: Linear 1-olefins are continuously prepared from internal olefins by (i) continuously feeding internal olefin, isomerization catalyst and tri-lower alkyl aluminum to a reaction zone so as to cause the internal olefin to isomerize to 1-olefins which displace the lower alkyl groups to form a trialkyl aluminum compound in which at least one of the alkyl groups is a linear alkyl derived from the 1-olefin, (ii) continuously removing trialkylaluminum compound from the reaction zone and, thereafter (iii) reacting the trialkyl aluminum compound with a 1-olefin so as to displace the linear alkyl from the trialkyl aluminum compound, thereby forming a linear 1-olefin product which is substantially free of internal olefins.Type: GrantFiled: November 23, 1992Date of Patent: December 28, 1993Assignee: Ethyl CorporationInventors: Robert H. Allen, Ronny W. Lin, Andrew D. Overstreet
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Patent number: 5245105Abstract: A process for separating a mixture of aluminum alkyl and alpha-olefin comprises contacting, under an elevated pressure of at least about 300 psig, an organic solvent stable, polyphenylene oxide-derived membrane with said mixture and recovering as the permeate an alpha-olefin fraction which contains a lower concentration of aluminum alkyl than in the starting mixture.Type: GrantFiled: January 26, 1993Date of Patent: September 14, 1993Assignee: Ethyl CorporationInventors: Kaung-Far Lin, William B. Waites
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Patent number: 5206401Abstract: The efficient production of alkylaluminoxane by the reaction of water, e.g., in the form of atomized water, and trialkylaluminum, e.g., trimethylaluminum, in an organic solvent medium can be achieved using a preformed alkylaluminoxane as a reaction moderator in the reaction mixture.Type: GrantFiled: June 7, 1991Date of Patent: April 27, 1993Assignee: Akzo Chemicals Inc.Inventors: Dennis L. Deavenport, James T. Hodges, III, Dennis B. Malpass, Nam H. Tran
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Patent number: 5191145Abstract: Linear 1-olefins are continuously prepared from internal olevins by (i) continuously feeding internal olefin, isomerization catalyst and tri-lower alkyl aluminum to a reaction zone so as to cause the internal olefin to isomerize to 1-olefins which displace the lower alkyl groups to form a trialkyl aluminum compound in which at least one of the alkyl groups is a linear alkyl derived from the 1-olefin, (ii) continuously removing trialkylaluminum compound from the reaction zone and, thereafter, (iii) reacting the trialkyl aluminum compound with a 1-olefin so as to displace the linear alkyl from the trialkyl aluminum compound, thereby forming a linear 1-olefin product which is substantially free of internal olefins.Type: GrantFiled: August 2, 1991Date of Patent: March 2, 1993Assignee: Ethyl CorporationInventors: Robert H. Allen, John N. Hu, Ronny W. Lin, Andrew D. Overstreet
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Patent number: 5182410Abstract: Disclosed is a crystalline compound and a method for forming the compound having a chemical composition expressed, in terms of molar ratios, by the formula:M.n[R(COOH).sub.x ]wherein M is aluminum hydroxide, n is the number of moles of organic material reacted with a mole of M, R is an organic functional group having carboxylic acid attached thereto, and x is equal to or greater than 2.Type: GrantFiled: December 14, 1990Date of Patent: January 26, 1993Assignee: Aluminum Company of AmericaInventor: Chanakya Misra
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Patent number: 5144053Abstract: Linear 1-olefins are prepared from internal olefins by (i) reacting them in the presence of an isomerization catalyst and a tri-lower alkyl aluminum so as to cause internal olefin to isomerize to 1-olefins which displace the lower alkyl groups to form a trialkyl aluminum compound in which at least one of the alkyl groups is a linear alkyl derived from the 1-olefin, and, thereafter, (ii) reacting the trialkyl aluminum compound with a 1-olefin so as to displace the linear alkyl from the trialkyl aluminum compound, thereby forming a linear 1-olefin product which is substantially free of internal olefins.Type: GrantFiled: December 9, 1991Date of Patent: September 1, 1992Assignee: Ethyl CorporationInventors: Robert H. Allen, Keith G. Anderson, Steven P. Diefenbach, Ronny W. Lin, Larry H. Nemec, Andrew D. Overstreet, Gene C. Robinson
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Patent number: 5130459Abstract: This invention provides a process for forming with high selectivity an Al film having good electrical conductivity at the uncoated portions of a substrate coated with a masking material by means of chemical vapor deposition, using an Al selective deposition material having good electrical conductivity without subjecting it preliminarily to cracking, characterized in that the process employs a molecular compound of trimethyl aluminum and dimethyl aluminum hydride as a starting material gas. This invention also provides an Al selective CVD material characterized in that it is an organic Al compound represented by the following formula:(CH.sub.3).sub.3 Al--(CH.sub.3).sub.2 AlHobtained through intermolecular binding between trimethyl aluminum and dimethyl aluminum hydride.Type: GrantFiled: June 10, 1991Date of Patent: July 14, 1992Assignee: NEC CorporationInventor: Tsutomu Shinzawa
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Patent number: 5124465Abstract: Linear 1-olefins are prepared from internal olefins by (i) reacting them in the presence of an isomerization catalyst and a tri-lower alkyl aluminum so as to cause the internal olefin to isomerize to 1-olefins which displace the lower alkyl groups to form a trialkyl aluminum compound in which at least one of the alkyl groups is a linear alkyl derived from the 1-olefin, and, thereafter, (ii) reacting the trialkyl aluminum compound with a 1-olefin so as to displace the linear alkyl from the trialkyl aluminum compound, thereby forming a linear 1-olefin product which is substantially free of internal olefins.Type: GrantFiled: March 25, 1991Date of Patent: June 23, 1992Assignee: Ethyl CorporationInventors: Robert H. Allen, Keith G. Anderson, Steven P. Diefenbach, Ronny W. Lin, Larry H. Nemec, Andrew D. Overstreet, Gene C. Robinson
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Patent number: 5112991Abstract: A process is provided herein for preparing an organo-substituted sodium aluminum hydride by reacting sodium, aluminum, an organic compound of specific structure containing a hydroxyl group and hydrogen.In such process, an aluminum alloy is used as the aluminum.Type: GrantFiled: February 16, 1990Date of Patent: May 12, 1992Assignee: Mitsui Toatsu Chemicals IncorporatedInventors: Tetsuya Iwao, Shuichi Osaka, Takao Sakaki, Tadao Nishida, Kiyoshi Yamamura, Seijiro Koga, Reiji Hirai, Haruo Nakagawa
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Patent number: 5087713Abstract: A process is disclosed for producing aluminum oxane by subjecting frozen water in a solution of trialkylaluminum in hydrocarbons to erosive action. In particular, a process is disclosed for producing methylaluminum oxane which is characterized in that frozen water in a solution of trimethylaluminum in hydrocarbons is subjected to erosive action which is exerted by mechanical action or by one or more intensive liquid jets of the reaction solution sweeping over the surface of the frozen water.Type: GrantFiled: March 20, 1990Date of Patent: February 11, 1992Assignee: Schering AGInventors: Hansjoerg Sinn, Dieter Clausnitzer, Hergen Winter
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Patent number: 5049687Abstract: An improved ethylene chain growth process in which ethylene and an alkyl aluminum compound are mixed and fed into an externally cooled, tubular coil reactor where said mixture is reacted at elevated temperature and pressure so as to form tri-C.sub.2 -C.sub.20+ alkyl aluminum compounds the improvement comprising reducing the rate of reactor fouling by precooling the ethylene to a temperature of from about 30.degree. to 70.degree. C. prior to mixing it with the alkyl aluminum compound.Type: GrantFiled: October 22, 1990Date of Patent: September 17, 1991Assignee: Ethyl CorporationInventor: Armen N. Abazajian
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Patent number: 5015750Abstract: 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.Type: GrantFiled: October 31, 1990Date of Patent: May 14, 1991Assignee: Texas Alkyls, Inc.Inventors: Nam H. Tran, Dennis L. Deavenport, Curtis W. Post
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Patent number: 4996340Abstract: A novel migratory insertion reaction is disclosed utilizing organoaluminum compounds. An intramolecular transfer of a carbon group from the aluminum complex E-1-halo-1-alkenyl)trialkylalanate occurs to produce an E-alkenyl(alkoxy)dialkylalanate or an E-dialkylalkenylalane or an (E,E)-3-alkyl-2-dialkylalumino-1,3-diene depending on process conditions. Novel organic aluminates are also disclosed.Type: GrantFiled: November 8, 1989Date of Patent: February 26, 1991Assignee: Ethyl CorporationInventor: Joseph A. Miller
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Patent number: 4948906Abstract: Trimethylaluminum is made by reacting a methyl halide with a tri-C.sub.2+ alkylaluminum, e.g. triethylaluminum, in the presence of a catalyst form by reacting bismuth metal with an alkylaluminum compound, e.g. trialkylaluminum, and an alkyl halide.Type: GrantFiled: February 16, 1990Date of Patent: August 14, 1990Assignee: Ethyl CorporationInventor: William R. Beard
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Patent number: 4925962Abstract: Trimethylaluminum is made by gradually feeding a methyl halide to a reaction vessel containing a tri-C.sub.2+ alkylaluminum (e.g. triethylaluminum) and a catalyst formed from a bismuth compound and an alkyl or aryl organoaluminum compound thereby forming trimethylaluminum and C.sub.2+ alkyl halide and continuously distilling the C.sub.2+ alkyl halide, and any methyl halide that fails to react, from the reaction vessel thereby avoiding the accumulation of trialkylaluminum and alkyl halide which not only tends to form alkylaluminum halides but can be very hazardous on a large scale if a temperature excursion should occur.Type: GrantFiled: October 24, 1988Date of Patent: May 15, 1990Assignee: Ethyl CorporationInventors: William R. Beard, Herbert M. Scull
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Patent number: 4924019Abstract: The waste product from the synthesis of trimethylgallium is reacted with a hydride selected from an alkali metal hydride, a group IIIA hydride, or a group III hydride to produce dimethylaluminum hydride of high purity.Type: GrantFiled: January 18, 1989Date of Patent: May 8, 1990Assignee: CVD IncorporatedInventors: Benjamin C. Hui, Luis I. Victoriano
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Patent number: 4918254Abstract: Alkyl groups in trialkyl aluminum are displaced by .alpha.-olefins in the presence of a nickel catalyst. The displaced alkyl group evolve as .alpha.-olefins. The displacement is fast and the catalyst is then poisoned with a catalyst poison such as lead to prevent undesired side reactions such as isomerization of .alpha.-olefins to internal olefins or dimerization to vinylidene olefins.Type: GrantFiled: February 6, 1989Date of Patent: April 17, 1990Assignee: Ethyl CorporationInventors: Steven P. Diefenbach, Gene C. Robinson
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Patent number: 4906762Abstract: According to the process of the present invention, trialkylarsenic compounds having a very high purity of usually over 99% can be obtained by using inexpensive, easily available arsenic oxides and without any complicated operations. The trialkylarsenic compounds thus obtained can be effectively used as a material for compound semiconductors in the field of electronic industry as well as in the field of various chemical industries, and are of great industrial value.Type: GrantFiled: August 16, 1988Date of Patent: March 6, 1990Assignee: Sumitomo Chemical Company, LimitedInventors: Kenichi Sawara, Hidekimi Kadokura, Tadaaki Yako
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Patent number: 4900854Abstract: Process for the preparation of asymmetrical alkaline earth metal organoborates and organoaluminates represented by the formula I: ##STR1## and asymmetrical alkaline earth metal organoarsenates and organophosphates represented by the formula II: ##STR2## wherein Z is selected from the group consisting of boron and aluminum; X is selected from the group consisting of phosphorus and arsenic; M is an alkaline earth metal; and in which R.sub.1 -R.sub.6 are independently selected from alkyl, aryl, alkaryl, aralkyl, alkenyl, cycloalkyl, and cyano with the proviso that R.sub.1 -R.sub.6 are not all the same.Type: GrantFiled: December 8, 1988Date of Patent: February 13, 1990Assignee: The Dow Chemical CompanyInventors: Richard C. Winterton, Ronald J. Hoffman, Thomas D. Gregory
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Patent number: 4897500Abstract: Waste material containing substantial amounts of Li(MH.sub.3 R) compounds where M is Al or Ga are deactivated by dissolving and/or dispersing the waste material in a solvent in which ionic deactivation products are soluble and then adding a carbonyl-containing compound which reacts with the Li(MH.sub.3 R) compound.Type: GrantFiled: April 12, 1989Date of Patent: January 30, 1990Assignee: CVD IncorporatedInventors: Benjamin C. Hui, Luis I. Victoriano
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Patent number: 4847399Abstract: Methods for forming or purifying organometallic compounds of elements of Group III-A of the Periodic Table. An intermediate compound is formed which is an adduct of the desired organometallic compound and a Group I-A or Group II-A compound. The adduct is nonvolatile, so volatile impurities are removed from the adduct by distillation. The adduct is decomposed to release the volatile organometallic compound, which is then distilled away from the nonvolatile remainder of the adduct. The method can be used to produce organometallic compounds which are substantially free of volatile metallic compounds and complexed solvents. A method of separating volatile Group II-B impurities from volatile Group III-A compounds is also disclosed.Type: GrantFiled: January 23, 1987Date of Patent: July 11, 1989Assignee: Morton Thiokol, Inc.Inventors: Robert B. Hallock, Stephen J. Manzik, Thomas Mitchell, Benjamin C. Hui
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Patent number: 4826665Abstract: Aluminum alkyl vapor is removed from a gas stream by scrubbing with a hydrocarbon scrubbing liquid containing a long chain carboxylic acid dissolved therein.Type: GrantFiled: March 10, 1988Date of Patent: May 2, 1989Assignee: Texas Alkyls, Inc.Inventors: Loyd W. Fannin, Dennis B. Malpass, John R. Rohrer
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Patent number: 4797500Abstract: A method for purifying an organometallic compound in which an organometallic compound of gallium, aluminum or indium is contacted with at least one metal selected from metallic sodium, metallic potassium and a sodium-potassium alloy. This method is especially efficacious when the high-purity organometallic compound is used as a semiconductor because, by the disclosed method, the silicon components are removed as impurities, which silicon material tends to lower the electrical characteristics of the semiconductor.Type: GrantFiled: April 21, 1988Date of Patent: January 10, 1989Assignee: Sumitomo Chemical Company, Ltd.Inventors: Hidekimi Kadokura, Kenichi Sawara, Tadaaki Yako
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Patent number: 4786717Abstract: Aluminum alkyls are deactivated in a spent hydrocarbon carrier for an olefin polymerization system by the addition of effective amounts of triglycerides.Type: GrantFiled: November 10, 1986Date of Patent: November 22, 1988Assignee: Aristech Chemical CorporationInventors: Randall K. Bretches, Andrew J. Sivak, Russell L. Stainfield
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Patent number: 4748283Abstract: Stable liquid hydrocarbon-soluble novel magnesium dialkoxide compositions useful as or in the preparation of polymerization catalysts and initiators for the polymerization of alpha-olefins and diolefins are prepared, for instance, by reacting certain organomagnesium compounds in liquid hydrocarbon solvents with (a) aliphatic, cycloaliphatic or acyclic beta- and gamma-alkyl-substituted C.sub.5 -C.sub.18 monohydric secondary and tertiary alcohols; or (b) mixtures of (a) with beta- and/or gamma-alkyl-unsubstituted C.sub.3 -C.sub.18 aliphatic secondary or tertiary alcohols; or (c) mixtures of (a) with C.sub.1 -C.sub.18 aliphatic primary linear alcohols. Such dialkoxides, and complexes thereof, soluble in hydrocarbon or chlorinated hydrocarbon solvents, can be reacted with triorganoaluminum compounds such as, for instance, TIBAL, organolithium, or organopotassium compounds, e.g., alkyllithiums, or alkali metal alkoxides.Type: GrantFiled: February 17, 1987Date of Patent: May 31, 1988Assignee: Lithium Corporation of AmericaInventor: Conrad W. Kamienski
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Patent number: 4732992Abstract: 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.Type: GrantFiled: December 22, 1986Date of Patent: March 22, 1988Assignee: Stauffer Chemical CompanyInventors: Loyd W. Fannin, Clark C. Crapo, Dennis B. Malpass
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Patent number: 4730072Abstract: This invention relates to a process for preparing aluminoxines from trialkyl aluminum compounds and an water dispersion produced using a high speed, high shear-inducing impeller.Type: GrantFiled: August 15, 1986Date of Patent: March 8, 1988Assignee: Shell Oil CompanyInventors: Galeon W. Schoenthal, Lynn H. Slaugh
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Patent number: 4730071Abstract: This invention relates to a process for preparing aluminoxanes from trialkyl aluminum compounds and an ultrasonically produced water dispersion.Type: GrantFiled: August 15, 1986Date of Patent: March 8, 1988Assignee: Shell Oil CompanyInventors: Galeon W. Schoenthal, Lynn H. Slaugh
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Patent number: 4720560Abstract: Compounds having the molecular formula:MR.sub.xwherein x is an integer from 2 to 4 inclusive, each said R substituent is independently selected from hydride, lower alkyl, phenyl, alkyl-substituted phenyl, cyclopentadienyl, and alkyl substituted cyclopentadienyl, at least two of said R substituents are different, and M is an element selected from Groups 2B or 3A of the Periodic Table, Bismuth, Selenium, Tellurium, Beryllium, and Magnesium, but excluding Aluminum, Bismuth, Selenium, and Tellurium if any R is hydride. The hybrid compound is used for metal organic chemical vapor deposition. The invention also includes a metal organic chemical vapor deposition process employing a hybrid of first and second compounds having the above formula, but wherein the R substituents of each compound can be like or unlike and M is selected from Groups 2B, 2A, 3A, 5A, and 6A of the Periodic Table except for Carbon, Nitrogen, Oxygen, and Sulfur.Type: GrantFiled: October 25, 1984Date of Patent: January 19, 1988Assignee: Morton Thiokol, Inc.Inventors: Benjamin C. Hui, Jorg Lorberth, Andreas A. Melas