Patents by Inventor Vijay C. Mehta
Vijay C. Mehta has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8128835Abstract: A deicing composition is provided. The composition includes a potassium or sodium salt of a carboxylic acid and a lithium salt of a carboxylic acid or lithium nitrate, wherein the molar ratio of lithium to potassium or lithium to sodium is from 10 percent to 80 percent.Type: GrantFiled: April 8, 2011Date of Patent: March 6, 2012Assignees: FMC Corporation, Lithium Division, Clemson UniversityInventors: David B. Stokes, Daniel Person Johnston, Prasada Rao Rangaraju, Vijay C. Mehta, Claudio E. Manissero
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Publication number: 20110185943Abstract: A deicing composition is provided. The composition includes a potassium or sodium salt of a carboxylic acid and a lithium salt of a carboxylic acid or lithium nitrate, wherein the molar ratio of lithium to potassium or lithium to sodium is from 10 percent to 80 percent.Type: ApplicationFiled: April 8, 2011Publication date: August 4, 2011Inventors: David B. Stokes, Daniel Person Johnston, Prasada Rao Rangaraju, Vijay C. Mehta, Claudio E. Manissero
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Patent number: 7943057Abstract: A deicing composition is provided. The composition includes a potassium or sodium salt of a carboxylic acid and a lithium salt of a carboxylic acid or lithium nitrate, wherein the molar ratio of lithium to potassium or lithium to sodium is from 10 percent to 80 percent.Type: GrantFiled: November 25, 2009Date of Patent: May 17, 2011Assignee: FMC CorporationInventors: David B. Stokes, Daniel Person Johnston, Prasada Rao Rangaraju, Vijay C. Mehta, Claudio E. Manissero
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Publication number: 20100064932Abstract: A deicing composition is provided. The composition includes a potassium or sodium salt of a carboxylic acid and a lithium salt of a carboxylic acid or lithium nitrate, wherein the molar ratio of lithium to potassium or lithium to sodium is from 10 percent to 80 percent.Type: ApplicationFiled: November 25, 2009Publication date: March 18, 2010Inventors: David B. Stokes, Daniel Person Johnston, Prasada Rao Rangaraju, Vijay C. Mehta, Claudio E. Manissero
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Publication number: 20030114592Abstract: Processes for improving the thermal stability of living polymer anions are provided. The invention further improves the efficiency of subsequent functionalization and linking reactions of such living polymer anions.Type: ApplicationFiled: October 24, 2001Publication date: June 19, 2003Applicant: FMC CorporationInventors: Thorsten Werner Brockmann, Vijay C. Mehta
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Publication number: 20030114611Abstract: Formulations of functionalized alkyllithium species having improved thermal stability are provided. The compositions include one or more functionalized alkyllithium compounds and one or more additives. The additive includes one or more organometallic compounds or precursors thereof capable of forming ate complexes with alkyllithiums.Type: ApplicationFiled: October 24, 2001Publication date: June 19, 2003Applicant: FMC CorporationInventors: Thorsten Werner Brockmann, Vijay C. Mehta
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Publication number: 20030096925Abstract: Formulations of alkyllithium species having improved thermal stability are provided. The compositions include one or more alkyllithium compounds and one or more additives. The additive includes one or more organometallic compounds or precursors thereof capable of forming ate complexes with alkyllithiums.Type: ApplicationFiled: October 24, 2001Publication date: May 22, 2003Applicant: FMC CorporationInventors: Thorsten Werner Brockmann, Vijay C. Mehta
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Patent number: 5320774Abstract: This invention concerns organometallic amide compositions particularly bimetallic organoamides in liquid hydrocarbon solutions in which one metal is an alkali metal the other an alkaline earth metal, zinc or copper and particularly lithium magnesium bis-diorganoamides, such as lithium magnesium bis-diisopropylamide and processes for preparation of such amides. These novel bimetallic amides have increased solubility in liquid hydrocarbon solvents and improved thermal and precipitation stability at temperatures of 0.degree. C. to 40.degree. C.Type: GrantFiled: April 6, 1989Date of Patent: June 14, 1994Assignee: FMC CorporationInventors: Vijay C. Mehta, Terry L. Rathman, Conrad W. Kamienski, Robert C. Morrison, Randy W. Hall
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Patent number: 5171467Abstract: A process for producing organometallic and/or organobimetallic compositions by reacting an organic halide, an alkali metal and magnesium halide in a liquid hydrocarbon solvent containing a limited amount of a Lewis base to produce a dialkyl magnesium compound or a dialkyl magnesium compound complexed with an alkali metal organic compound.Type: GrantFiled: March 6, 1990Date of Patent: December 15, 1992Assignee: FMC CorporationInventors: Vijay C. Mehta, Robert C. Morrison, Conrad W. Kamienski
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Patent number: 5002689Abstract: This invention concerns organometallic amide compositions particularly bimetallic organoamides in liquid hydrocarbon solutions in which one metal is an alkali metal the other an alkaline earth metal, zinc or copper and particularly lithium magnesium bis-diorganoamides, such as lithium magnesium bis-diisopropylamide and processes for preparation of such amides. These novel bimetallic amides have increased solubility in liquid hydrocarbon solvents and improved thermal and precipitation stability at temperatures of 0.degree. C. to 40.degree. C.Type: GrantFiled: February 25, 1988Date of Patent: March 26, 1991Assignee: Lithium Corporation of AmericaInventors: Vijay C. Mehta, Terry L. Rathman, Conrad W. Kamienski, Robert C. Morrison, Randy W. Hall
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Patent number: 4944894Abstract: An ether free magnesium bisorganoamide of the formulaMg[N(R.sup.1) (R.sup.2)].sub.2wherein R.sup.1 and R.sup.2 are independently selected from hydrogen and alkyl groups containing 2 to 20 carbon atoms with the proviso that at least one of R.sup.1 and R.sup.2 is other than hydrogen or R.sup.1 and R.sup.2 taken together form an alkylene chain of 4 to 20 carbon atoms and a method of manufacture. Also disclosed are lithium-magnesiumorganoamides and organosubstituted lithium-magnesiumorganoamide.Type: GrantFiled: February 25, 1988Date of Patent: July 31, 1990Assignee: Lithium Corporatoin of AmericaInventors: Vijay C. Mehta, Terry L. Rathman, Ramiro Sanchez, Robert C. Morrison
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Patent number: 4820672Abstract: A process for producing an alcohol adducted or complexed hydrocarbon soluble magnesium chloride comprising reacting in a hydrocarbon medium a compound selected from magnesium metal, dialkyl magnesium, dialkoxy magnesium and alkoxy magnesium chloride with a dry hydrogen halide and a C.sub.1 to C.sub.10 chloro-alcohol or mixtures of chloro-alcohol and a C.sub.5 to C.sub.18 beta-alkyl substituted alcohol which may optionally contain some C.sub.1 to C.sub.20 primary unsubstituted monohydric alcohol.Type: GrantFiled: May 9, 1988Date of Patent: April 11, 1989Assignee: Lithium Corporation of AmericaInventor: Vijay C. Mehta
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Patent number: 4820879Abstract: The present invention provides a process for making hydrocarbyloxy magnesium halides by reacting in an inert atmosphere under anhydrous conditions activated magnesium metal with an oxygen containing compound of 1 to 20 carbon atoms and an anhydrous hydrogen halide to produce a hydrocarbyloxy magnesium halide.Type: GrantFiled: June 5, 1987Date of Patent: April 11, 1989Assignee: Lithium Corporation of AmericaInventor: Vijay C. Mehta
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Patent number: 4792640Abstract: This invention concerns solid organometallic hydrocarbyloxymagnesium halides of the formula ROMgX wherein RO is a hydrocarbyloxy group of 1 to 20 carbon atoms and X is halide, and a two step process for making these halides comprising:(a) reacting an activated magnesium metal with an alkyl halide of the formula R'X, in which R' is compound containing 1 to 20 carbon atoms, in a dry inert hydrocarbon media, under a dry inert atmosphere to produce a compound of the formula R'MgX in which R' and X have the meanings ascribed to them herein; and,(b) and reacting the R'MgX compound with an oxygen containing compound, containing 1 to 20 carbon atoms, selected from the group consisting of alcohols, ketones, aldehydes and esters to produce the compound ROMgX.When the oxygen containing compound is 2-alkyl substituted, the products are hydrocarbon soluble.Type: GrantFiled: March 13, 1987Date of Patent: December 20, 1988Assignee: Lithium Corporation of AmericaInventor: Vijay C. Mehta
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Patent number: 4723962Abstract: An improved process is described for recovering lithium from evaporatively concentrated brines. Epsom salt recovered from the brine at about 0.degree. C. is added to the concentrated lithium-containing brine, so as to precipitate lithium sulfate monohydrate, the brine having previously been subjected to the sequential steps of two stage chilling, evaporative concentration, further chilling and vacuum evaporation.Type: GrantFiled: June 5, 1986Date of Patent: February 9, 1988Assignee: Lithium Corporation of AmericaInventor: Vijay C. Mehta