Patents Represented by Attorney Deane E. Keith
  • Patent number: 4573534
    Abstract: A novel cement composition comprising (1) cement, (2) at least one polysaccharide, and (3) a viscosity modifying amount of a 1,2-dicarbonyl; aqueous slurries prepared from these novel cement compositions and a method of cementing casing in the borehole of a well using such novel aqueous cement slurries.
    Type: Grant
    Filed: June 12, 1984
    Date of Patent: March 4, 1986
    Assignee: Gulf Oil Corporation
    Inventors: Wilford S. Baker, James J. Harrison
  • Patent number: 4557821
    Abstract: Heavy or refractory oils are hydroprocessed in the presence of added water and added hydrogen sulfide with or without a slurry catalyst comprising molybdenum sulfide. The water and hydrogen sulfide may originate from the catalyst preparation procedure.
    Type: Grant
    Filed: August 29, 1983
    Date of Patent: December 10, 1985
    Assignee: Gulf Research & Development Company
    Inventors: Jaime Lopez, Joel D. McKinney, Eugene A. Pasek
  • Patent number: 4547487
    Abstract: A process for preparing novel catalysts of increased activity, which comprises mixing alumina with (1) at least one metal compound and (2) an aqueous solution containing at least one dissolved compound therein that imparts to said aqueous solution a pH below 6.
    Type: Grant
    Filed: May 19, 1983
    Date of Patent: October 15, 1985
    Assignee: Gulf Research & Development Company
    Inventors: Roger F. Vogel, Raymond J. Rennard, Joseph A. Tabacek
  • Patent number: 4535115
    Abstract: A one-step solution technique for preparing an aromatic polyimide acid which comprises reacting an aromatic dianhydride with an aromatic diamine in the presence of diglyme and a sufficient amount of a co-solvent to maintain the polyimide acid in solution, said co-solvent having the formula:ROHwhere R is H, an aliphatic branched or straight-chain hydrocarbon having from 1 to 5 carbon atoms or a methoxy substituted aliphatic branched or straight-chain hydrocarbon having from 1 to 5 carbon atoms.
    Type: Grant
    Filed: August 20, 1984
    Date of Patent: August 13, 1985
    Assignee: Gulf Oil Corporation
    Inventors: Kiran R. Bakshi, Walter P. Barie, Edward T. Sabourin
  • Patent number: 4529554
    Abstract: A process is provided for preparing nickel ylides which are themselves novel compounds defined by the following Formula I: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7 and R.sub.
    Type: Grant
    Filed: August 18, 1980
    Date of Patent: July 16, 1985
    Assignee: Gulf Research & Development Company
    Inventors: David L. Beach, James J. Harrison
  • Patent number: 4526229
    Abstract: An hydraulic packer assembly for sealing an annulus between a well casing and a tubing string inserted within the well casing comprises a packer (10) and a setting tool (12). The packer includes a packer body (22) having an internal bore (23) with a seal (18) and gripping members (20) mounted on its exterior surface for engaging the interior surface of the well casing. Actuating mechanisms are provided within the packer for expanding the seal and gripping members into contact with the casing wall, which mechanisms include a piston and cylinder arrangement operated by fluid pressure conveyed from the tool interior to the cylinder. The setting tool is releasably coupled to the packer body to mount it on a tubing string and for conveying fluid pressure to the actuating mechanisms. Seals on the setting tool provide a fluid tight seal between the setting tool and the axial bore through the packer body.
    Type: Grant
    Filed: February 14, 1983
    Date of Patent: July 2, 1985
    Assignee: Gulf Oil Corporation
    Inventor: Richard C. Dickerson
  • Patent number: 4525557
    Abstract: A process for the polymerization of ethylene using as the catalyst a novel solid catalytic complex comprising Mg, Si, and either Ti or V. An organoaluminum co-catalyst is also employed. The novel catalytic complex is prepared by a process which comprises:(a) reacting a silanol having the formula ##STR1## where R, R' and R" can be the same or different and are selected from the group consisting of aliphatic hydrocarbons having from 2 to 12 carbon atoms or phenyl or substituted phenyl where such substituents have from one to three alkyl groups, and alkyl group having from one to four carbon atoms and where R" can additionally be selected from --OH, with a magnesium dialkyl where each alkyl group can have from one to 12 carbon atoms to form a first reaction product;(b) reacting said first reaction product with trichlorosilane to form a second reaction product; and(c) reacting said second reaction product with a metal compound having the formula:MeX.sub.
    Type: Grant
    Filed: February 27, 1984
    Date of Patent: June 25, 1985
    Assignee: Gulf Oil Corporation
    Inventors: William J. Heilman, Richard A. Kemp
  • Patent number: 4524171
    Abstract: A one-step solution technique for preparing an aromatic polyimide acid which comprises reacting an aromatic dianhydride with an aromatic diamine in the presence of propylene glycol methyl ether.
    Type: Grant
    Filed: August 20, 1984
    Date of Patent: June 18, 1985
    Assignee: Gulf Oil Corporation
    Inventors: Kiran R. Bakshi, Walter P. Barie, Edward T. Sabourin
  • Patent number: 4520120
    Abstract: Hydrocarbons containing vanadium are converted to lower boiling fractions employing a zeolitic cracking catalyst containing a significant concentration of a calcium-containing additive as a vanadium passivating agent.
    Type: Grant
    Filed: March 19, 1984
    Date of Patent: May 28, 1985
    Assignee: Gulf Research & Development Company
    Inventors: Bruce R. Mitchell, Roger F. Vogel
  • Patent number: 4518394
    Abstract: Porous cellulosic fiberboard having a density of at least about 16.0 pounds per cubic foot is impregnated with a hydrocarbon wax having a conjealing point of at least 135.degree. F. The resulting combination contains less wax and has a longer burn time than lower density cellulosic fiberboard impregnated with a lower congealing point wax.
    Type: Grant
    Filed: December 22, 1981
    Date of Patent: May 21, 1985
    Assignee: Gulf Research & Development Company
    Inventors: Philip R. Templin, Elizabeth L. Fareri
  • Patent number: 4512905
    Abstract: Homogeneous sodium zirconium silico-phosphates having the formulaNa.sub.1+x+4y Zr.sub.2-y (SiO.sub.4).sub.x (PO.sub.4).sub.3-xwhere x is from 1 to 2.8 and y is between 0 and about 0.5, are prepared by heating a zirconium phosphate with an aqueous, alkaline sodium silicate solution and calcining the resulting solid orthorhombic crystalline product. The calcined product is useful as a solid electrolyte for transporting sodium ions in a sodium-sulfur storage battery.
    Type: Grant
    Filed: December 23, 1982
    Date of Patent: April 23, 1985
    Assignee: The Texas A&M University System
    Inventors: Abraham Clearfield, Paul Jerus
  • Patent number: 4507055
    Abstract: A system for automatically controlling the intermittent pumping of a well minimizes fluid pound occurrence without reducing well production. The pump is operated in a learn mode until pump-off of the well when the pump is deactivated for a preset period. The pump is then operated in a control mode in which the pump is repeatedly cycled on to pump the well for at least one stroke less than the pumping time of the learn mode and then off for a preset period. Control mode operation is continued for a predetermined number of cycles after which the learn mode operation is repeated to reset the pumping time for the control mode operation.
    Type: Grant
    Filed: July 18, 1983
    Date of Patent: March 26, 1985
    Assignee: Gulf Oil Corporation
    Inventors: John C. Fair, Kenneth R. Ferguson
  • Patent number: 4507247
    Abstract: There are provided novel sulfonated Group Va ylides defined by the following Formula I: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.
    Type: Grant
    Filed: February 25, 1983
    Date of Patent: March 26, 1985
    Assignee: Gulf Research & Development Company
    Inventors: David L. Beach, James J. Harrison
  • Patent number: 4500661
    Abstract: A novel adhesive composition effective in bonding low-energy plastic surfaces to each other which provides a tensile lap shear strength in excess of about 520 pounds per square inch gauge which comprises (1) an ethylene-vinyl ester copolymer having from about four to about 30 weight percent of a vinyl ester and a melt index of about 0.5 to about 75; (2) a tackifier selected from the group consisting of (a) a rosin, (b) a rosin ester, (c) a terpene resin, (d) a terpene-phenolic resin and (e) a rosin-modified phenolic resin; and (3) a polyethylene wax having a molecular weight of about 750 to about 3000, a penetration of about 0.25 to about 1.5, a density of about 0.93 to about 0.97, a melting point of at least about 110.degree. C. and a linearity of at least about 70 percent, said novel adhesive composition having a Ring and Ball softening point of at least about 110.degree. C.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: February 19, 1985
    Assignee: Gulf Oil Corporation
    Inventor: Pallavoor R. Lakshmanan
  • Patent number: 4497903
    Abstract: Synthesis gas conversion catalyst prepared from synthetic layered aluminosilicate having a montmorillonite-type structure and containing cobalt substituted in the crystal lattice are activated for the conversion of synthesis gas by a sequential reduction, oxidation and reduction treatment. A Group VIII noble metal such as ruthenium can be impregnated on the catalyst prior to the final reduction stage. The catalyst is used in the production of liquid hydrocarbons from synthesis gas.
    Type: Grant
    Filed: December 17, 1982
    Date of Patent: February 5, 1985
    Assignee: Gulf Research & Development Company
    Inventors: Charles L. Kibby, Thaddeus P. Kobylinski
  • Patent number: 4493905
    Abstract: A catalyst useful in the conversion of synthesis gas to diesel fuel in a fluidized bed is prepared by contacting finely divided alumina with an aqueous impregnation solution of a cobalt salt, drying the impregnated support and thereafter contacting the support with a nonaqueous, organic impregnation solution of salts of ruthenium and a Group IIIB or IVB metal.
    Type: Grant
    Filed: October 11, 1983
    Date of Patent: January 15, 1985
    Assignee: Gulf Research & Development Company
    Inventors: Harold Beuther, Charles L. Kibby, T. P. Kobylinski, Richard B. Pannell
  • Patent number: 4492774
    Abstract: A process for converting synthesis gas to liquid hydrocarbons using a catalyst prepared from synthetic layered aluminosilicate having a montmorillonite-type structure and containing cobalt substituted in the crystal lattice and activated for the conversion by a sequential reduction, oxidation and reduction treatment.
    Type: Grant
    Filed: December 27, 1982
    Date of Patent: January 8, 1985
    Assignee: Gulf Research & Development Company
    Inventors: Charles L. Kibby, Thaddeus P. Kobylinski
  • Patent number: 4490479
    Abstract: A process for preparing novel catalysts of increased activity which comprises (1) mixing alumina with at least one metal compound selected from the group consisting of Group IVB metal compounds and compounds of vanadium, chromium, manganese, tungsten, nickel and cobalt and an aqueous solution containing at least one dissolved compound therein that imparts to said aqueous solution a pH below 6 and (2) thereafter adding to the resulting product at least one metal compound not previously added thereto.
    Type: Grant
    Filed: May 19, 1983
    Date of Patent: December 25, 1984
    Assignee: Gulf Research & Development Company
    Inventors: Roger F. Vogel, Raymond J. Rennard, Joseph A. Tabacek
  • Patent number: 4490483
    Abstract: A process for preparing novel catalysts of increased activity which comprises (1) mixing alumina with at least a Group IVB metal compound and a molybdenum compound and an aqueous solution containing at least one dissolved compound therein that imparts to said aqueous solution a pH below 6 and (2) thereafter adding to the resulting product at least one metal compound not previously added thereto.
    Type: Grant
    Filed: May 19, 1983
    Date of Patent: December 25, 1984
    Assignee: Gulf Research & Development Company
    Inventors: Roger F. Vogel, Raymond J. Rennard, Joseph A. Tabacek
  • Patent number: 4483763
    Abstract: Nitrogenous compounds are eliminated from a synthetic hydrocarbon oil such as shale oil by partial hydrogenation followed by solvent extraction using a three-component solvent comprising an organic polar solvent, an acid and water. For example, a furfuryl alcohol, hydrochloric acid and water solution will remove the major quantity of the nitrogen compounds from shale oil which remain following the partial hydrogenation of the shale oil.
    Type: Grant
    Filed: December 27, 1982
    Date of Patent: November 20, 1984
    Assignee: Gulf Research & Development Company
    Inventors: Myong S. Kuk, Edgar W. Albaugh, John C. Montagna