Patents Represented by Attorney, Agent or Law Firm J. Rodgers Lunsford III
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Patent number: 5789112Abstract: A method for manufacturing Li.sub.2 M.sub.b Mn.sub.2-b O.sub.4 which comprises the steps of providing LiM.sub.b Mn.sub.2-b O.sub.4 ; providing a lithium salt; forming a mixture of the LiM.sub.b Mn.sub.2-b O.sub.4 and lithium salt in a liquid medium; adding a reducing agent to the mixture; heating for sufficient time to effect substantially complete conversion; and separating the product Li.sub.2 M.sub.b Mn.sub.2-b O.sub.4 .Type: GrantFiled: February 3, 1997Date of Patent: August 4, 1998Assignee: Kerr-McGee Chemical CorporationInventor: Paul C. Ellgen
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Patent number: 5766569Abstract: A method for manufacturing Li.sub.1+x Mn.sub.2 O.sub.4 comprising the steps of providing LiMn.sub.2 O.sub.4 or .beta.-MnO.sub.2 ; providing a source of lithium; dissolving lithium from the lithium source in a liquid medium in which lithium generates solvated electrons or the reduced form of an electron-transfer catalyst; and contacting the LiMn.sub.2 O.sub.4 or .beta.-MnO.sub.2 with the liquid medium containing the dissolved lithium and the solvated electrons or the reduced form of the electron-transfer catalyst.Type: GrantFiled: January 17, 1996Date of Patent: June 16, 1998Assignee: Kerr-McGee Chemical CorporationInventors: Paul C. Ellgen, Terrell N. Andersen
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Patent number: 5759256Abstract: A rutile mixed metal oxide pigment can be prepared by calcining a rutile ore with a transition metal oxide. The rutile mixed oxide pigment can be dispersed in an emulsion to produce a paint or coating or the pigment can be combined with a network former and network modifier to produce a ceramic glaze.Type: GrantFiled: May 24, 1996Date of Patent: June 2, 1998Assignee: Kerr-McGee Chemical Corp.Inventor: Rodney D. Stramel
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Patent number: 5733261Abstract: A locking syringe is disclosed which comprises a plunger, a cylinder, and a locking member for preventing the syringe to be used more than one time. The plunger includes an indention near its upper end into which a plunger locking member fits when the plunger is pushed and approaches the lower end of the cylinder to administer injections or remove bodily fluids and prevents re-use of the syringe by preventing removal of the plunger from the cylinder after the syringe has been used. The cylinder comprises an open cylindrical passage and includes a needle attached in a conventional manner at the end thereof.Type: GrantFiled: March 8, 1996Date of Patent: March 31, 1998Inventor: Ekoi Edet Obong
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Patent number: 5733365Abstract: A process for preparing a low-dusting, free-flowing pigment which has not been subjected to any micronizing treatment comprising the steps of providing an inorganic pigment material; providing a source of water; forming a fine, well dispersed slurry of the pigment and water; milling the slurry; depositing a treating agent having the formula ROOCCHSO.sub.3 MCH.sub.2 COOR' wherein R and R' are monovalent alkyl radicals having from about 2 to about 20 carbon atoms, and M is a metallic monovalent cation on the slurried milled pigment; and drying the pigment material having a treating agent deposited thereon. The invention also provides the free-flowing pigments produced by this process.Type: GrantFiled: February 18, 1997Date of Patent: March 31, 1998Assignee: Kerr-McGee CorporationInventors: John E. Halko, Phillip M. Story, James W. Kauffman, Kelly A. Green
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Patent number: 5730796Abstract: Pigmentary titanium dioxide having a high durability when used in paint or the like exposed to solar radiation and methods of producing such pigmentary titanium dioxide are provided. The durable pigmentary titanium dioxide of the invention is comprised of rutile titanium dioxide particles having cerium oxide and dense amorphous silica deposited thereon. The particles preferably also have an outer coating of hydrous alumina deposited thereon.Type: GrantFiled: January 16, 1997Date of Patent: March 24, 1998Assignee: Kerr-McGee Chemical CorporationInventors: John R. Brand, Roger A. Baldwin, Thomas Ian Brownbridge
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Patent number: 5721070Abstract: A metal ion intercalation compound suitable for use as the cathode material in an alkali metal battery. In one embodiment, a metal ion intercalation compound is mixed with an electrically conductive material. The metal ion intercalation compound is represented by the formula:M.sub.x T.sub.y A.sub.zwherein M is an alkali metal ion, wherein T is a metal ion capable of existing in more than one stable oxidation state, and wherein A is a multi-element anion with a negative charge greater than 1.Type: GrantFiled: April 13, 1995Date of Patent: February 24, 1998Inventor: Dale R. Shackle
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Patent number: 5702679Abstract: A continuous method of preparing a single phase lithiated manganese oxide intercalation compound of the formula Li.sub.1+x Mn.sub.2-x O.sub.4 comprising the steps of: mixing intimately a lithium hydroxide or a lithium salt and a manganese oxide or a manganese salt; feeding the intimately mixed salts to a reactor; continuously agitating the mixed salts in the reactor; heating the agitated mixed salts in the reactor at a temperature of from about 650.degree. C. to about 800.degree. C. for a time not in excess of about 4 hours in an oxygen-containing atmosphere; and cooling the reacted product to less than about 200.degree. C. in an oxygen-containing atmosphere for a time not in excess of about 2 hours.Type: GrantFiled: October 6, 1995Date of Patent: December 30, 1997Assignee: Kerr-McGee Chemical Corp.Inventors: Stephen W. Sheargold, Terrell N. Andersen
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Patent number: 5700318Abstract: Improved alumina-coated inorganic pigments having a first coating of boehmite alumina, a second coating of amorphous alumina, and a third coating of boehmite alumina which exhibit good durability, dispersibility, and optical properties in plastic compositions are disclosed. Also disclosed is a process whereby an aqueous slurry of an alumina-containing inorganic pigment is milled to achieve a particular particle size distribution, a first coating of boehmite alumina is precipitated onto the pigment material within a first pH range, a second amount of an alumina coating agent is added to the aqueous slurry within a second pH range to obtain a second coating of amorphous alumina over the first boehmite alumina coating, and then the pH of the slurry is adjusted to a third pH range thus forming a third boehmite alumina coating over the second amorphous alumina coating.Type: GrantFiled: April 16, 1996Date of Patent: December 23, 1997Assignee: Kerr-McGee Chemical CorporationInventors: John R. Brand, Kelly A. Green
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Patent number: 5669509Abstract: A method for separating coarse particles from TiO.sub.2 powder in a fine powder composition by the steps of: providing a system in which a source of the fine powder composition communicates with a minimally fluidizable bed of the fine powder composition within the system; delivering the fine powder composition from the source to the bed; imparting energy into the bed and delivering a fluidizing gas to the bed at a rate to cause the TiO.sub.2 powder and coarse particles of the fine powder composition to separate into a TiO.sub.2 powder phase and a coarse particle phase; removing the TiO.sub.2 powder from the system; and removing the coarse particles from the system.Type: GrantFiled: February 28, 1996Date of Patent: September 23, 1997Assignee: Kerr-McGee Chemical CorporationInventor: Larry G. Sherman
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Patent number: 5641468Abstract: A method for manufacturing Li.sub.2 Mn.sub.2 O.sub.4 comprising the steps of providing LiMn.sub.2 O.sub.4 ; providing a source of lithium; dissolving lithium from the lithium source in a liquid medium in which lithium generates solvated electrons or the reduced form of an electron-transfer catalyst; and contacting the LiMn.sub.2 O.sub.4 with the liquid medium containing the dissolved lithium and the solvated electrons or the reduced form of the electron-transfer catalyst.Type: GrantFiled: September 7, 1995Date of Patent: June 24, 1997Assignee: Kerr-McGee Chemical CorporationInventor: Paul C. Ellgen
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Patent number: 5641465Abstract: A method for manufacturing Li.sub.2 Mn.sub.2 O.sub.4 comprising the steps of providing .beta.-MnO.sub.2 or .lambda.-MnO.sub.2 ; providing a source of lithium; dissolving lithium from the lithium source in a liquid medium in which lithium generates solvated electrons or the reduced form of an electron-transfer catalyst; and contacting the .beta.-MnO.sub.2 or .lambda.-MnO.sub.2 with the liquid medium containing the dissolved lithium and the solvated electrons or the reduced form of the electron-transfer catalyst.Type: GrantFiled: September 7, 1995Date of Patent: June 24, 1997Assignee: Kerr-McGee Chemical CorporationInventors: Paul C. Ellgen, Terrell N. Andersen
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Patent number: 5639438Abstract: A method for manufacturing Li.sub.2 M.sub.b Mn.sub.2-b O.sub.4 which comprises the steps of providing LiM.sub.b Mn.sub.2-b O.sub.4 ; providing a lithium salt; forming a mixture of the LiM.sub.b Mn.sub.2-b O.sub.4 and lithium salt in a liquid medium; adding a reducing agent to the mixture; heating for sufficient time to effect substantially complete conversion; and separating the product Li.sub.2 M.sub.b Mn.sub.2-b O.sub.4.Type: GrantFiled: December 6, 1995Date of Patent: June 17, 1997Assignee: Kerr-McGee Chemical CorporationInventor: Paul C. Ellgen
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Patent number: 5605773Abstract: A method for manufacturing Li.sub.2 M.sub.b Mn.sub.2-b O.sub.4 comprising the steps of providing LiM.sub.b Mn.sub.2-b O.sub.4 ; providing a source of lithium; dissolving lithium from the lithium source in a liquid medium in which lithium generates solvated electrons or the reduced form of an electron-transfer catalyst; and contacting the LiM.sub.b Mn.sub.2-b O.sub.4 with the liquid medium containing the dissolved lithium and the solvated electrons or the reduced form of the electron-transfer catalyst, wherein M is selected from the group Al, Ti, V, Cr, Fe, Co, Ni, and Cu.Type: GrantFiled: December 6, 1995Date of Patent: February 25, 1997Assignee: Kerr-McGee CorporationInventor: Paul C. Ellgen
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Patent number: 5597664Abstract: A method for manufacturing Li.sub.2 Mn.sub.2 O.sub.4 which comprises the steps of providing LiMn.sub.2 O.sub.4 ; providing a lithium salt; forming a solution or suspension of the LiMn.sub.2 O.sub.4 and lithium salt in a liquid medium; and adding a reducing agent to the solution or suspension.Type: GrantFiled: September 7, 1995Date of Patent: January 28, 1997Assignee: Kerr-McGee CorporationInventor: Paul C. Ellgen
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Patent number: 5597515Abstract: A process for producing a conductive, fluorine-doped titanium dioxide product which is doped throughout, said process comprising the steps of: (a) reacting the precursors in a system to form fluorine-doped TiO.sub.2, said precursors consisting essentially of a titanium alkoxide and a fluorine source; (b) reducing the fluorine-doped titanium dioxide product at a temperature sufficient to form said conductive, fluorine-doped titanium dioxide product; and (c) recovering the reduced product.Type: GrantFiled: September 27, 1995Date of Patent: January 28, 1997Assignee: Kerr-McGee CorporationInventors: James W. Kauffman, Bruce R. Palmer
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Patent number: 5593569Abstract: A process of converting high molecular hydrocarbon feedstock into lower molecular weight components in the presence of a homogenous catalysis system is disclosed. The catalysis system comprises a catalyst complex formed by the interaction of a metal halide-type Lewis acid, a protic Bronsted acid or Bronsted acid donor and a fluid hydrocarbon selected from a C.sub.2 -C.sub.14 alkane dissolved in a fluid hydrocarbon. The homogeneous catalysis system can be produced as a liquid phase or a supercritical fluid solution. The process is especially useful where the hydrocarbon feedstock consists of deasphalted oil or mixed paraffins. The hydrocrackate, especially that derived from paraffin feedstocks, has a carbon number distribution equivalent to that of the fluid hydrocarbon of the catalyst complex.Type: GrantFiled: January 9, 1995Date of Patent: January 14, 1997Assignee: Kerr-McGeeInventor: Larry G. Sherman
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Patent number: D382886Type: GrantFiled: May 22, 1995Date of Patent: August 26, 1997Inventor: Jan Egil Fl.o slashed.ysvik
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Patent number: D391999Type: GrantFiled: April 29, 1997Date of Patent: March 10, 1998Assignee: Kids II, Inc.Inventor: Stephen Chininis
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Patent number: D396498Type: GrantFiled: June 24, 1997Date of Patent: July 28, 1998Assignee: KIDS II, Inc.Inventor: Tamra L. Leslie