The Compound Consists Of The Metal, Carbon And Hydrogen (e.g., Dialkyl Zinc, Etc.) Patents (Class 556/129)
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Patent number: 8932389Abstract: A zinc oxide precursor for use in deposition of a zinc oxide-based thin film contains a zincocene having the following formula or a derivative thereof: where R1 and R2 are hydrogen or CnH2n+1. The n is a number selected from 1 to 3, and the R1 and R2 is one selected from the group consisting of hydrogen, a methyl group, an ethyl group and an i-propyl group. A method of depositing a zinc oxide-based thin film includes the following steps of: loading a substrate into a deposition chamber; and supplying the above-described zinc oxide precursor and an oxidizer into the deposition chamber and forming a zinc oxide-based thin film on the substrate via chemical vapor deposition. In an exemplary embodiment, the zinc oxide-based thin film may be formed on the substrate via atmospheric pressure chemical vapor deposition.Type: GrantFiled: November 19, 2012Date of Patent: January 13, 2015Assignee: Samsung Corning Precision Materials Co., Ltd.Inventors: Sooho Park, Seohyun Kim, Jeongwoo Park, Taejung Park, YoungZo Yoo, GunSang Yoon, Eun-Ho Choi, Myong Woon Kim, Bogyeong Kim, Hyung Soo Shin, Seung Ho Yoo, Sang Do Lee, Sang Ick Lee, Sang Jun Yim
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Patent number: 8791284Abstract: It is an object of the present invention to provide a novel organometallic compound functioning usefully as a chain transfer agent and the like in polymerization reaction of a double-bond containing compound. The present invention provides an organometallic compound represented by the following general formula (1) and a production method thereof.Type: GrantFiled: June 30, 2010Date of Patent: July 29, 2014Assignee: Mitsui Chemicals, Inc.Inventors: Takashi Ochiai, Haruyuki Makio
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Patent number: 8501885Abstract: This disclosure relates to olefin polymerization catalysts and compositions, their manufacture, and the production of polyolefins using specific catalyst compositions, including the use of chain shuttling agents in the olefin polymerization process. Specifically, this disclosure provides for dual headed and multi-headed chain shuttling agents (CSAs or MSAs) and for their use in preparing blocky copolymers. By controlling the ratio of dual-headed and multi-headed CSA sites to mono-headed CSA sites, a blocky copolymer can be provided having properties such as a narrow molecular weight distribution and/or improved melt properties.Type: GrantFiled: July 20, 2010Date of Patent: August 6, 2013Assignee: Dow Global Technologies, LLCInventors: Daniel J. Arriola, Thomas P. Clark, Kevin A. Frazier, Sara B. Klamo, Francis J. Timmers
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Patent number: 8492574Abstract: There are provided methods for preparing diorganozinc compounds of formula R2Zn. For example, such a method can method comprise reacting together a compound of formula ZnX2 with at least one compound chosen from compounds of formulas RM1T, R2M1, and RM2. R, X, M1, M2, and T can be various different chemical entities. Compounds of formula R2ZnR3, in which R2 and R3 are the same or different, can also prepared in a similar manner.Type: GrantFiled: November 9, 2009Date of Patent: July 23, 2013Inventors: Andre Charette, Alexandre Cote, Alexandre Lemire
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Publication number: 20130184481Abstract: A method of purifying crude organometallic compounds using a plurality of distillation columns is provided. This method effectively removes both relatively more volatile impurities and relatively less volatile impurities as compared to the organometallic compound.Type: ApplicationFiled: July 13, 2012Publication date: July 18, 2013Applicant: Dow Global Technologies LLCInventors: Curtis D. MODTLAND, Chet D. Davidson
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Publication number: 20130171341Abstract: A zinc oxide precursor for use in deposition of a zinc oxide-based thin film contains a zincocene having the following formula or a derivative thereof: where R1 and R2 are hydrogen or CnH2n+1. The n is a number selected from 1 to 3, and the R1 and R2 is one selected from the group consisting of hydrogen, a methyl group, an ethyl group and an i-propyl group. A method of depositing a zinc oxide-based thin film includes the following steps of: loading a substrate into a deposition chamber; and supplying the above-described zinc oxide precursor and an oxidizer into the deposition chamber and forming a zinc oxide-based thin film on the substrate via chemical vapor deposition. In an exemplary embodiment, the zinc oxide-based thin film may be formed on the substrate via atmospheric pressure chemical vapor deposition.Type: ApplicationFiled: November 19, 2012Publication date: July 4, 2013Applicant: SAMSUNG CORNING PRECISION MATERIALS CO., LTD.Inventor: Samsung Corning Precision Materials Co., Ltd
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Patent number: 8236981Abstract: A method for manufacturing dialkylzinc and dialkylaluminum monohalide that makes it possible to efficiently manufacture both dialkylzinc and dialkylaluminum monohalide of high purity and at a high yield on an industrial scale with a single reaction from zinc halide and trialkylaluminum as raw materials, while suppressing the production of precipitants in the reaction process and suppressing the adhesion of precipitates to the equipment and the admixture thereof into the product. The method for manufacturing dialkylzinc and dialkylaluminum monohalide by reacting zinc halide with trialkylaluminum, includes using trialkylaluminum with a hydride concentration of 0.01% by mass to 0.10% by mass, and separating dialkylzinc essentially not containing aluminum from reactants and then separating dialkylaluminum monohalide essentially not containing zinc.Type: GrantFiled: April 30, 2009Date of Patent: August 7, 2012Assignee: Nippon Aluminum Alkyls, Ltd.Inventors: Hideya Takahashi, Tadao Nishida, Seijiro Koga, Masanori Okutani
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Publication number: 20120165486Abstract: This disclosure relates to olefin polymerization catalysts and compositions, their manufacture, and the production of polyolefins using specific catalyst compositions, including the use of chain-shuttling agents in the olefin polymerization process. Specifically, this disclosure provides for dual-headed and multi-headed chain shuttling agents (CSAs or MSAs) and for their use in preparing blocky copolymers. By controlling the ratio of dual-headed and multi-headed CSA sites to mono-headed CSA sites, a blocky copolymer can be provided having properties such as a narrow molecular weight distribution and/or improved melt properties.Type: ApplicationFiled: July 20, 2010Publication date: June 28, 2012Applicant: DOW GLOBAL TECHNOLOGIES LLCInventors: Daniel J. Arriola, Thomas P. Clark, Kevin A. Frazier, Sara B. Klamo, Francis J. Timmers
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Publication number: 20120101289Abstract: It is an object of the present invention to provide a novel organometallic compound functioning usefully as a chain transfer agent and the like in polymerization reaction of a double-bond containing compound. The present invention provides an organometallic compound represented by the following general formula (1) and a production method thereof.Type: ApplicationFiled: June 30, 2010Publication date: April 26, 2012Inventors: Takashi Ochiai, Haruyuki Makio
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Publication number: 20110054206Abstract: The present invention is to provide a method for manufacturing dialkylzinc and dialkylaluminum monohalide that makes it possible to efficiently manufacture both dialkylzinc and dialkylaluminum monohalide of high purity and at a high yield on an industrial scale with a single reaction from zinc halide and trialkylaluminum as raw materials, while suppressing the production of precipitants in the reaction process and suppressing the adhesion of precipitates to the equipment and the admixture thereof into the product. The method for manufacturing dialkylzinc and dialkylaluminum monohalide by reacting zinc halide with trialkylaluminum, comprising: using trialkylaluminum with a hydride concentration of 0.01% by mass to 0.10% by mass, and separating dialkylzinc essentially not containing aluminum from reactants and then separating dialkylaluminum monohalide essentially not containing zinc.Type: ApplicationFiled: April 30, 2009Publication date: March 3, 2011Applicant: NIPPON ALUMINUM ALKYLS, LTD.Inventors: Hideya Takahashi, Tadao Nishida, Seijiro Koga, Masanori Okutani
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Publication number: 20100331563Abstract: A process is disclosed for the preparation of zinc alkyl chain growth products via a catalysed chain growth reaction of an alpha-olefin on a zinc alkyl, wherein the chain growth catalyst system employs a group 3-10 transition metal, or a group 3 main group metal, or a lanthanide or actinide complex, and optionally a suitable activator. The products can be further converted into alpha-olefins by olefin displacement of the grown alkyls as alpha-olefins from the zinc alkyl chain growth product, or into primary alcohols, by oxidation of the resulting zinc alkyl chain growth product to form alkoxide compounds, followed by hydrolysis of the alkoxides.Type: ApplicationFiled: June 23, 2010Publication date: December 30, 2010Applicant: Ineos Europe LimitedInventors: George Johan Peter Britovsek, Steven A. Cohen, Vernon Charles Gibson
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Publication number: 20100121089Abstract: There are provided methods for preparing diorganozinc compounds of formula R2Zn. For example, such a method can method comprise reacting together a compound of formula ZnX2 with at least one compound chosen from compounds of formulas RM1T, R2M1, and RM2. R, X, M1, M2, and T can be various different chemical entities.Type: ApplicationFiled: November 9, 2009Publication date: May 13, 2010Inventors: Andre Charette, Alexandre Cote, Alexandre Lemire
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Patent number: 7166734Abstract: Organometallic compounds of Group IIB and IIIA metals that are substantially pure and contain low levels of oxygenated impurities are provided. Also provided are methods of preparing such organometallic compounds.Type: GrantFiled: September 2, 2005Date of Patent: January 23, 2007Assignee: Rohm and Haas Electronic Materials LLCInventors: Deodatta Vinayak Shenai-Khatkhate, Artashes Amamchyan
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Patent number: 6770588Abstract: A reductive system including a silane, preferably PMHS, and an active zinc compound, which is monomeric and not a hydride, wherein a reduction of a carbonyl substrate to a corresponding alcohol is achievable.Type: GrantFiled: January 16, 2003Date of Patent: August 3, 2004Assignee: Firmenich SAInventor: Hubert Mimoun
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Patent number: 6521771Abstract: The present invention describes the use of zinc treated with metal hydride in organometallic synthesis.Type: GrantFiled: May 17, 2001Date of Patent: February 18, 2003Assignee: Goldschmidt AGInventors: Georg Frommeyer, Wilfried Knott, Andreas Weier, Jurij Weiss, Dagmar Windbiel
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Patent number: 6184404Abstract: There is described a process for the enantioselective alkylation of aldehydes by means of organozinc compounds, of which a ligand of the zinc is transferred to the aldehyde, and the other ligand acts as so-called dummy ligand. As novel substances there are used zinc-organic compounds, which contain the neophyl residue as dummy ligand.Type: GrantFiled: March 1, 1999Date of Patent: February 6, 2001Assignee: Metallgesellschaft AktiengesellschaftInventors: Paul Knochel, Christian Lutz
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Patent number: 6140522Abstract: A method for altering the ratio of isotopes of the metal of a metal alkyl, in that an amount of depleted or enriched metal alkyl in preferably liquid form is contacted with an amount of the metal of the metal alkyl or an alloy of that metal and is held in contact for some time. Preferably, particulate metal or alloy is used, and the metal alkyl and the metal or the alloy are contacted and held in contact at a temperature above room temperature. The metal alkyl and/or the metal or alloy can be moved while being held in contact. The method is applicable in particular to diethylzinc and zinc.Type: GrantFiled: January 5, 2000Date of Patent: October 31, 2000Assignee: Urenco Nederland B.V.Inventors: Charles Adelbert Mol, Maarten van Wijnkoop
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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: 5350869Abstract: Trialkylgallium is purified of group II B p-type impurities, particularly Zn, Hg, and Cd, by contacting the trialkylgallium with a metallic gallium-containing melt. Also, trialkylgallium can be produced by contacting a dialkyl group II B compound with a metallic gallium-containing melt.Type: GrantFiled: July 27, 1993Date of Patent: September 27, 1994Assignee: CVD, IncorporatedInventors: Ravindra K. Kanjolia, Benjamin C. Hui, William B. Grant
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Patent number: 5245065Abstract: Di-alkyl compounds of a Group 2b metal is reacted with an alkyl halide in the presence of magnesium to obtain the di-alkyl compound of the Group 2b metal and magnesium halide. Di-alkyl compound-containing products are obtainable from the resulting product mixture having a halogen content of less than 1 ppm, a silicon content of less than 1 ppm and a Group 3a metal content of less than 1 ppm.Type: GrantFiled: November 5, 1992Date of Patent: September 14, 1993Assignee: Shell Research LimitedInventors: Cornelis J. Smit, Gerardus P. M. Van Mier, Henricus P. B. Duijghuisen
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Patent number: 4962216Abstract: Dineopentylcadmium is prepared from cadmium dihalide and neopentyl Grignard in tetrahydrofuran. The reaction product is isolated by addition of dioxane, filtration, removal of solvent via distillation, and purification by sublimation.Type: GrantFiled: September 29, 1989Date of Patent: October 9, 1990Assignee: The United States of America as represented by the Secretary of the NavyInventors: Kelvin T. Higa, Daniel C. Harris
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Patent number: 4841082Abstract: 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.Type: GrantFiled: August 19, 1988Date of Patent: June 20, 1989Assignee: Texas Alkyls, Inc.Inventors: Scott H. Eidt, Dennis L. Deavenport, Nam H. Tran
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Patent number: 4812586Abstract: A method of preparing high purity dimethyl cadmium or dimethyl zinc suitable for use in the deposition of Group II-VI epitaxial layers, which consists of forming an adduct of the metal alkyl with a non-chelating tertiary amine containing at least two tertiary amino groups per amine molecule, and subsequently dissociating the adduct to liberate the metal alkyl as a vapor. The adducts formed during the preparative method are found to dissociate readily on heating and yet are substantially involatile and so do not contaminate the liberated metal alkyl. A preferred amine suitable for use in the preparative method is 4,4' bipyridyl.Type: GrantFiled: January 27, 1987Date of Patent: March 14, 1989Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern IrelandInventors: John B. Mullin, John C. Hamilton, Elisabeth D. Orrell, Philip R. Jacobs, Deodattta V. Shenai-Khatkhate
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Patent number: 4767873Abstract: The invention describes a helicene compound having the structure ##SPC1##which contains seven six-membered conjugated aromatic rings capped by two five-membered rings which do not superimpose on each other.The invention also describes a helical metallocene oligomer capped by unsaturated five-membered rings, having the structure: ##SPC2##wherein M is a transition metal halide and n=1 to 100.Method for the preparation of these compounds are also presented.Type: GrantFiled: September 10, 1986Date of Patent: August 30, 1988Assignee: The Trustees of Columbia University in the City of New YorkInventors: Thomas J. Katz, Anantha Sudhakar
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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: 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
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Patent number: 4670571Abstract: 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.Type: GrantFiled: October 15, 1985Date of Patent: June 2, 1987Assignee: Texas Alkyls, Inc.Inventors: Dennis B. Malpass, Loyd W. Fannin