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).

  • Patent number: 10374228
    Abstract: 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: Grant
    Filed: November 20, 2018
    Date of Patent: August 6, 2019
    Assignee: 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
  • Publication number: 20190097221
    Abstract: 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: Application
    Filed: November 20, 2018
    Publication date: March 28, 2019
    Inventors: Marina Yakovleva, Yuan Gao, Kenneth Brian Fitch, B. Troy Dover, Prakash Thyaga Palepu, Jian-xin Li, Brian Anthony Christopher Carlin, Yangxing Li
  • Patent number: 10141568
    Abstract: 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: Grant
    Filed: December 4, 2017
    Date of Patent: November 27, 2018
    Assignee: FMC Corporation
    Inventors: Marina Yakovleva, Yuan Gao, Kenneth Brian Fitch, B. Troy Dover, Prakash Thyaga Palepu, Jian-xin Li, Brian Anthony Christopher Carlin, Yangxing Li
  • Publication number: 20180083273
    Abstract: 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: Application
    Filed: December 4, 2017
    Publication date: March 22, 2018
    Inventors: Marina Yakovleva, Yuan Gao, Kenneth Brian Fitch, B. Troy Dover, Prakash Thyaga Palepu, Jian-xin Li, Brian Anthony Christopher Carlin, Yangxing Li
  • Publication number: 20150132641
    Abstract: 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: Application
    Filed: January 23, 2015
    Publication date: May 14, 2015
    Inventors: Marina Yakovleva, Yuan Gao, Kenneth Brian Fitch, B. Troy Dover, Prakash Thyaga Palepu, Jian-xin Li, Brian Anthony Christopher Carlin, Yangxing Li
  • Publication number: 20110226987
    Abstract: 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: Application
    Filed: June 2, 2011
    Publication date: September 22, 2011
    Inventors: Marina Yakovleva, Yuan Gao, Kenneth Brian Fitch, B. Troy Dover, Prakash Thyaga Palepu, Jian-Xin Li, Brian Anthony Christopher Carlin, Yangxing Li
  • Publication number: 20100024597
    Abstract: 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: Application
    Filed: August 14, 2009
    Publication date: February 4, 2010
    Inventors: B. Troy Dover, Christopher Jay Woltermann, Marina Yakovleva, Yuan Gao, Prakash Thyaga Palepu
  • Patent number: 7588623
    Abstract: 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: Grant
    Filed: July 3, 2006
    Date of Patent: September 15, 2009
    Assignee: FMC Corporation Lithium Division
    Inventors: B. Troy Dover, Christopher Jay Woltermann, Marina Yakovleva, Yuan Gao, Prakash Thyaga Palepu
  • Publication number: 20090035663
    Abstract: 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: Application
    Filed: October 11, 2007
    Publication date: February 5, 2009
    Inventors: Marina Yakovleva, Yuan Gao, Kenneth Brian Fitch, B. Troy Dover, Prakash Thyaga Palepu, Jian-xin Li, Brian Anthony Christopher Carlin, Yangxing Li
  • Patent number: 5976403
    Abstract: 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: Grant
    Filed: April 23, 1998
    Date of Patent: November 2, 1999
    Assignee: FMC Corporation
    Inventors: B. Troy Dover, Conrad W. Kamienski, Robert C. Morrison, R. Thomas Currin, Jr., James A. Schwindeman
  • Patent number: 5776369
    Abstract: 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: Grant
    Filed: April 22, 1996
    Date of Patent: July 7, 1998
    Assignee: FMC Corporation
    Inventors: B. Troy Dover, Conrad W. Kamienski, Robert C. Morrison, R. Thomas Currin, Jr., James A. Schwindeman
  • Patent number: 5605872
    Abstract: 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: Grant
    Filed: June 2, 1995
    Date of Patent: February 25, 1997
    Assignee: FMC Corporation
    Inventors: John F. Engel, Conrad W. Kamienski, James A. Schwindeman, Randy W. Hall, Robert C. Morrison, B. Troy Dover
  • Patent number: 5567474
    Abstract: 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: Grant
    Filed: March 21, 1994
    Date of Patent: October 22, 1996
    Assignee: FMC Corporation
    Inventors: B. Troy Dover, Conrad W. Kamienski, Robert C. Morrison, R. Thomas Currin, Jr.
  • Patent number: 5550203
    Abstract: 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: Grant
    Filed: June 2, 1995
    Date of Patent: August 27, 1996
    Assignee: FMC Corporation
    Inventors: John F. Engel, Conrad W. Kamienski, James A. Schwindeman, Randy W. Hall, Robert C. Morrison, B. Troy Dover
  • Patent number: 5527753
    Abstract: 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: Grant
    Filed: December 13, 1994
    Date of Patent: June 18, 1996
    Assignee: FMC Corporation
    Inventors: John F. Engel, Conrad W. Kamienski, James A. Schwindeman, Randy W. Hall, Robert C. Morrison, B. Troy Dover
  • Patent number: 5523364
    Abstract: 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: Grant
    Filed: June 2, 1995
    Date of Patent: June 4, 1996
    Assignee: FMC Corporation
    Inventors: John F. Engel, Conrad W. Kamienski, James A. Schwindeman, Randy W. Hall, Robert C. Morrison, B. Troy Dover
  • Patent number: 5523447
    Abstract: 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: Grant
    Filed: June 7, 1995
    Date of Patent: June 4, 1996
    Assignee: FMC Corporation
    Inventors: Conrad W. Kamienski, James A. Schwindeman, B. Troy Dover, Robert C. Morrison
  • Patent number: 5332853
    Abstract: 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: Grant
    Filed: July 14, 1993
    Date of Patent: July 26, 1994
    Assignee: FMC Corporation
    Inventors: Robert C. Morrison, Randy W. Hall, B. Troy Dover, Conrad W. Kamienski, John F. Engel
  • Patent number: 5332533
    Abstract: 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: Grant
    Filed: July 6, 1993
    Date of Patent: July 26, 1994
    Assignee: FMC Corporation
    Inventors: James A. Schwindeman, Robert C. Morrison, B. Troy Dover, John F. Engel, Conrad W. Kamienski, Randy W. Hall, Douglas E. Sutton
  • Patent number: 5276219
    Abstract: 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: Grant
    Filed: November 6, 1992
    Date of Patent: January 4, 1994
    Assignee: FMC Corporation
    Inventors: James A. Schwindeman, B. Troy Dover, Robert C. Morrison, Conrad W. Kamienski