Patents by Inventor B. Troy Dover
B. Troy Dover 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: 10374228Abstract: The present invention provides a lithium metal powder protected by a wax. The resulting lithium metal powder has improved stability and improved storage life.Type: GrantFiled: November 20, 2018Date of Patent: August 6, 2019Assignee: FMC Lithium USA Corp.Inventors: Marina Yakovleva, Yuan Gao, Kenneth Brian Fitch, B. Troy Dover, Prakash Thyaga Palepu, Jian-xin Li, Brian Anthony Christopher Carlin, Yangxing Li
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Publication number: 20190097221Abstract: The present invention provides a lithium metal powder protected by a wax. The resulting lithium metal powder has improved stability and improved storage life.Type: ApplicationFiled: November 20, 2018Publication date: March 28, 2019Inventors: Marina Yakovleva, Yuan Gao, Kenneth Brian Fitch, B. Troy Dover, Prakash Thyaga Palepu, Jian-xin Li, Brian Anthony Christopher Carlin, Yangxing Li
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Patent number: 10141568Abstract: The present invention provides a lithium metal powder protected by a wax. The resulting lithium metal powder has improved stability and improved storage life.Type: GrantFiled: December 4, 2017Date of Patent: November 27, 2018Assignee: FMC CorporationInventors: Marina Yakovleva, Yuan Gao, Kenneth Brian Fitch, B. Troy Dover, Prakash Thyaga Palepu, Jian-xin Li, Brian Anthony Christopher Carlin, Yangxing Li
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Publication number: 20180083273Abstract: The present invention provides a lithium metal powder protected by a wax. The resulting lithium metal powder has improved stability and improved storage life.Type: ApplicationFiled: December 4, 2017Publication date: March 22, 2018Inventors: Marina Yakovleva, Yuan Gao, Kenneth Brian Fitch, B. Troy Dover, Prakash Thyaga Palepu, Jian-xin Li, Brian Anthony Christopher Carlin, Yangxing Li
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Publication number: 20150132641Abstract: The present invention provides a lithium metal powder protected by a wax. The resulting lithium metal powder has improved stability and improved storage life.Type: ApplicationFiled: January 23, 2015Publication date: May 14, 2015Inventors: Marina Yakovleva, Yuan Gao, Kenneth Brian Fitch, B. Troy Dover, Prakash Thyaga Palepu, Jian-xin Li, Brian Anthony Christopher Carlin, Yangxing Li
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Publication number: 20110226987Abstract: The present invention provides an anode including a host material capable of absorbing or desorbing lithium in an electrochemical system. A stabilized lithium metal powder coated with a wax is dispersed in the host material.Type: ApplicationFiled: June 2, 2011Publication date: September 22, 2011Inventors: Marina Yakovleva, Yuan Gao, Kenneth Brian Fitch, B. Troy Dover, Prakash Thyaga Palepu, Jian-Xin Li, Brian Anthony Christopher Carlin, Yangxing Li
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Publication number: 20100024597Abstract: A method of stabilizing lithium metal powder is provided. The method includes the steps of heating lithium metal to a temperature above its melting point, agitating the molten lithium metal, and contacting the lithium metal with a fluorination agent to provide a stabilized lithium metal powder.Type: ApplicationFiled: August 14, 2009Publication date: February 4, 2010Inventors: B. Troy Dover, Christopher Jay Woltermann, Marina Yakovleva, Yuan Gao, Prakash Thyaga Palepu
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Patent number: 7588623Abstract: A method of stabilizing lithium metal powder is provided. The method includes the steps of heating lithium metal to a temperature above its melting point, agitating the molten lithium metal, and contacting the lithium metal with a fluorination agent to provide a stabilized lithium metal powder.Type: GrantFiled: July 3, 2006Date of Patent: September 15, 2009Assignee: FMC Corporation Lithium DivisionInventors: B. Troy Dover, Christopher Jay Woltermann, Marina Yakovleva, Yuan Gao, Prakash Thyaga Palepu
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Publication number: 20090035663Abstract: The present invention provides a lithium metal powder protected by a wax. The resulting lithium metal powder has improved stability and improved storage life.Type: ApplicationFiled: October 11, 2007Publication date: February 5, 2009Inventors: Marina Yakovleva, Yuan Gao, Kenneth Brian Fitch, B. Troy Dover, Prakash Thyaga Palepu, Jian-xin Li, Brian Anthony Christopher Carlin, Yangxing Li
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Patent number: 5976403Abstract: A process for producing dispersions of atmospherically stable, coated alkali metal particles and atmospherically stable, coated alkali metal powders by agitating a mixture of molten alkali metal in a hydrocarbon oil at dispersion speeds, optionally in the presence of a dispersing agent, contacting the molten alkali metal-hydrocarbon oil dispersion, above or below the surface of the dispersion, with up to 3 weight percent anhydrous carbon dioxide while agitating the dispersion for at least 1 minute. The dispersion in oil can be used directly in chemical reactions. The bulk of the oil can be removed from the dispersions to produce oil wet particles, the oil wet particles car be washed with a low boiling hydrocarbon to produce hydrocarbon wet particles which can be dried to produce atmospherically stable powders of coated metal particles. The dispersed particles in oil, the oil wet particles, the hydrocarbon wet particles and the atmospherically stable powders can each be used in chemical reactions.Type: GrantFiled: April 23, 1998Date of Patent: November 2, 1999Assignee: FMC CorporationInventors: B. Troy Dover, Conrad W. Kamienski, Robert C. Morrison, R. Thomas Currin, Jr., James A. Schwindeman
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Patent number: 5776369Abstract: A process for producing dispersions of atmospherically stable, coated alkali metal particles and atmospherically stable, coated alkali metal powders by agitating a mixture of molten alkali metal in a hydrocarbon oil at dispersion speeds, optionally in the presence of a dispersing agent, contacting the molten alkali metal-hydrocarbon oil dispersion, above or below the surface of the dispersion, with up to 3 weight percent anhydrous carbon dioxide while agitating the dispersion for at least 1 minute. The dispersion in oil can be used directly in chemical reactions. The bulk of the oil can be removed from the dispersions to produce oil wet particles, the oil wet particles can be washed with a low boiling hydrocarbon to produce hydrocarbon wet particles which can be dried to produce atmospherically stable powders of coated metal particle The dispersed particles in oil, the oil wet particles, the hydrocarbon wet particles and the atmospherically stable powders can each be used in chemical reactions.Type: GrantFiled: April 22, 1996Date of Patent: July 7, 1998Assignee: FMC CorporationInventors: B. Troy Dover, Conrad W. Kamienski, Robert C. Morrison, R. Thomas Currin, Jr., James A. Schwindeman
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Patent number: 5605872Abstract: A process for the preparation of hydrocarbon solutions of monofunctional amine initiators of the following general structures: ##STR1## wherein M is defined as an alkali metal, selected from the group consisting of lithium, sodium and potassium, Q is a saturated or unsaturated hydrocarbyl group derived by incorporation of a compound selected from the group consisting of conjugated diene hydrocarbons and alkenyl substituted aromatic hydrocarbons; Z is a hydrocarbon tether group which contains 3-25 carbon atoms; A is an element selected from Group IVa of the periodic table and R.sup.1, R.sup.2, and R.sup.3 are independently selected from hydrogen, alkyl, substituted alkyl, cycloalkyl, aryl or substituted aryl groups, m is an integer from 0 to 7, and n is an integer from 1 to 5, monofunctional amine initiators produced by the process, use of the initiators in a polymerization process and polymers produced by the polymerization process.Type: GrantFiled: June 2, 1995Date of Patent: February 25, 1997Assignee: FMC CorporationInventors: John F. Engel, Conrad W. Kamienski, James A. Schwindeman, Randy W. Hall, Robert C. Morrison, B. Troy Dover
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Patent number: 5567474Abstract: A process for producing alkali metal dispersions by agitating a mixture of molten alkali metal in a hydrocarbon oil at dispersion speeds by contacting the dispersed alkali metal with up to 3 weight percent anhydrous carbon dioxide through the agitating dispersion for at least 1 minute. The process produces lithium dispersions having a dispersion coating containing lithium carbonate, lithium oxide or hydroxide and a hydrocarbon.Type: GrantFiled: March 21, 1994Date of Patent: October 22, 1996Assignee: FMC CorporationInventors: B. Troy Dover, Conrad W. Kamienski, Robert C. Morrison, R. Thomas Currin, Jr.
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Patent number: 5550203Abstract: A process for the preparation of hydrocarbon solutions of monofunctional amine initiators of the following general structures:M--Q.sub.n --Z--N(A(R.sup.1 R.sup.2 R.sup.3)).sub.2or ##STR1## wherein M is defined as an alkali metal, selected from the group consisting of lithium, sodium and potassium, Q is a saturated or unsaturated hydrocarbyl group derived by incorporation of a compound selected from the group consisting of conjugated diene hydrocarbons and alkenyl substituted aromatic hydrocarbons; Z is a hydrocarbon tether group which contains 3-25 carbon atoms; A is an element selected from Group IVa of the periodic table and R.sup.1, R.sup.2, and R.sup.3 are independently selected from hydrogen, substituted alkyl, cycloalkyl, aryl or substituted aryl groups, m is an integer from 0 to 7, and n is an integer from 1 to 5, monofunctional amine initiators produced by the process, use of the initiators in a polymerization process and polymers produced by the polymerization process.Type: GrantFiled: June 2, 1995Date of Patent: August 27, 1996Assignee: FMC CorporationInventors: John F. Engel, Conrad W. Kamienski, James A. Schwindeman, Randy W. Hall, Robert C. Morrison, B. Troy Dover
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Patent number: 5527753Abstract: A process for the preparation of hydrocarbon solutions of monofunctional amine initiators of the following general structures: ##STR1## wherein M is defined as an alkali metal, selected from the group consisting of lithium, sodium and potassium, Q is a saturated or unsaturated hydrocarbyl group derived by incorporation of a compound selected from the group consisting of conjugated diene hydrocarbons and alkenyl substituted aromatic hydrocarbons; Z is a hydrocarbon tether group which contains 3-25 carbon atoms; A is an element selected from Group IVa of the periodic table and R.sup.1, R.sup.2, and R.sup.3 are independently selected from hydrogen, alkyl, substituted alkyl, cycloalkyl, aryl or substituted aryl groups, m is an integer from 0 to 7, and n is an integer from 1 to 5, monofunctional amine initiators produced by the process, use of the initiators in a polymerization process and polymers produced by the polymerization process.Type: GrantFiled: December 13, 1994Date of Patent: June 18, 1996Assignee: FMC CorporationInventors: John F. Engel, Conrad W. Kamienski, James A. Schwindeman, Randy W. Hall, Robert C. Morrison, B. Troy Dover
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Patent number: 5523364Abstract: A process for the preparation of hydrocarbon solutions of monofunctional amine initiators of the following general structures: ##STR1## wherein M is defined as an alkali metal, selected from the group consisting of lithium, sodium and potassium, Q is a saturated or unsaturated hydrocarbyl group derived by incorporation of a compound selected from the group consisting of conjugated diene hydrocarbons and alkenyl substituted aromatic hydrocarbons; Z is a hydrocarbon tether group which contains 3-25 carbon atoms; A is an element selected from Group IVa of the periodic table and R.sup.1, R.sup.2, and R.sup.3 are independently selected from hydrogen, alkyl, substituted alkyl, cycloalkyl, aryl or substituted aryl groups, m is an integer from 0 to 7, and n is an integer from 1 to 5, monofunctional amine initiators produced by the process, use of the initiators in a polymerization process and polymers produced by the polymerization process.Type: GrantFiled: June 2, 1995Date of Patent: June 4, 1996Assignee: FMC CorporationInventors: John F. Engel, Conrad W. Kamienski, James A. Schwindeman, Randy W. Hall, Robert C. Morrison, B. Troy Dover
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Patent number: 5523447Abstract: A process for preparing easily separable solutions of organolithium compounds comprising the steps of reacting lithium metal, in the form of cast or extruded ingots or pieces cut therefrom, with an organo halide in mole ratios ranging from 3:1 to 20:1 in a solvent selected form a group of liquid hydrocarbons, alkyl ethers, and mixtures thereof under an inert atmosphere for one to ten hours with moderate stirring, cooling the resulting product, and separating the solution of the organolithium compound from the reacted lithium metal and by-product lithium chloride in the reactor.Type: GrantFiled: June 7, 1995Date of Patent: June 4, 1996Assignee: FMC CorporationInventors: Conrad W. Kamienski, James A. Schwindeman, B. Troy Dover, Robert C. Morrison
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Patent number: 5332853Abstract: This application concerns a process for alkylating, in a hydrocarbon solvent reaction medium, metalloidal substrates such as alkylating a chlorosilane with an alkyllithium containing 3 to 8 carbon atoms by conducting these reactions in the presence of a catalyst selected from primary and secondary alcohols, and their respective metal alkoxides, cyclic ethers, hydrocarbyl ethers, hydrocarbyl silyl ethers, and tertiary amines.Type: GrantFiled: July 14, 1993Date of Patent: July 26, 1994Assignee: FMC CorporationInventors: Robert C. Morrison, Randy W. Hall, B. Troy Dover, Conrad W. Kamienski, John F. Engel
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Patent number: 5332533Abstract: A high temperature process for producing alkyllithium compounds in high yields of at least 90% and high purity comprising reacting, in a liquid hydrocarbon solvent, an alkyl halide containing 3 to 16 carbon atoms and mixtures thereof with lithium metal particles of less than 300 microns in size at a temperature between 35.degree. and 125.degree. C. and recovering the alkyllithium compound.Type: GrantFiled: July 6, 1993Date of Patent: July 26, 1994Assignee: FMC CorporationInventors: James A. Schwindeman, Robert C. Morrison, B. Troy Dover, John F. Engel, Conrad W. Kamienski, Randy W. Hall, Douglas E. Sutton
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Patent number: 5276219Abstract: A process for producing clear, colorless solutions of branched lithium alkoxides containing 3 to 12 carbon atoms, in a polar reaction solvent, comprising reacting a dispersion of lithium metal having a particle size less than 300 microns with a minimum of 5 mole percent excess over stoichiometric of a branched alkyl alcohol containing 4 to 12 carbon atoms, in a polar reaction solvent as the reaction medium, at a temperature between 50.degree. C. and the boiling point of the solvent in an inert atmosphere.Type: GrantFiled: November 6, 1992Date of Patent: January 4, 1994Assignee: FMC CorporationInventors: James A. Schwindeman, B. Troy Dover, Robert C. Morrison, Conrad W. Kamienski