Patents Examined by Y. Harris-Smith
  • Patent number: 4678479
    Abstract: Diesel fuel composition comprising a hydrocarbonaceous diesel fuel having a cetane number in the range from 25 to 60, a polyolefin and a polyamine wherein at least one hydrocarbon chain has at least 25 carbon atoms and is bound directly to a nitrogen atom.
    Type: Grant
    Filed: April 11, 1986
    Date of Patent: July 7, 1987
    Inventors: Robert T. Holmes, Terence M. Evans, Keith King, Leonard B. Graiff
  • Patent number: 4675027
    Abstract: Heavy metal salts of certain branched chain carboxylic acids significantly improve the filterability, pour point and cloud point of liquid hydrocarbyl fuels when incorporated therein.
    Type: Grant
    Filed: April 24, 1985
    Date of Patent: June 23, 1987
    Assignee: Mobil Oil Corporation
    Inventor: Sheldon Chibnik
  • Patent number: 4673412
    Abstract: A fuel composition containing a fuel additive which comprises a metal compound has been developed which fuel composition is stable upon storage. It has been discovered that a fuel additive comprising a metal compound and an oxime does not degrade a fuel, e.g. heating fuel oil, diesel fuel and the like, upon storage. Fuel additives containing metal compounds to function, e.g., as an agent to reduce soot formation and generally improve the combustion properties of the fuel may be added to fuels and stored without the build-up of gummy deposits and sludge in the storage container.
    Type: Grant
    Filed: September 24, 1985
    Date of Patent: June 16, 1987
    Assignee: The Lubrizol Corporation
    Inventors: Stephen H. Stoldt, Reed H. Walsh
  • Patent number: 4670022
    Abstract: A fuel composition for spark-ignition engines consisting essentially of gasoline and a barium compound in an amount of 100 ppm or more in terms of barium metal and relative to the gasoline, said barium compound being selected from the group consisting of a barium sulfonate, a barium naphthenate, a barium alkylsalicylate and a barium .alpha.-alkylalkane monocarboxylate. Spark-ignition engines utilizing this fuel composition operate with improved characteristics relative to adhesion of carbon to the spark plugs. The exhaust from the engine does not degrade the exhaust gas purifying catalyst even when the engine is equipped with an exhaust ignition control device.
    Type: Grant
    Filed: October 25, 1985
    Date of Patent: June 2, 1987
    Assignees: Honda Giken Kogyo Kabushiki Kaisha, Idemitsu Kosan Company, Ltd.
    Inventors: Takeshi Maruya, Katuyuki Yamazaki
  • Patent number: 4670170
    Abstract: Disclosed are polyaminoalkenyl or alkyl succinimides which have been modified by treatment with a compound of the formula: ##STR1## R.sub.4 is an alkylene group of from 2 to 3 carbon atoms or an alkylene group of from 2 to 3 carbon atoms substituted with from 1 to 3 alkyl groups of from 1 to 2 carbon atoms each. The modified polyamino alkenyl or alkyl succinimides of this invention have been found to possess dispersancy and detergency in lubricating oils. These modified succinimides are also useful as dispersants and detergents in fuels.
    Type: Grant
    Filed: April 18, 1986
    Date of Patent: June 2, 1987
    Assignee: Chevron Research Company
    Inventor: Robert H. Wollenberg
  • Patent number: 4670021
    Abstract: A novel compound having the following formula: ##STR1## in which R.sup.1 and R.sup.2 may independently represent a hydrogen radical, a hydrocarbon radical having from 8 to 20 carbon atoms, or an alkoxy substituted hydrocarbon radical of from 8 to 20 carbon atoms having at least one alkoxy substituent; R.sup.3 is a hydrocarbon radical having from 8 to 21 carbon atoms or a hydrocarbylamine radical having a molecular weight ranging from 135 to 300;and X and Y are members selected from the group consisting of --H,--COOH,--CN,--CONR.sup.4 R.sup.5,--COR.sup.6, --COOR.sup.7,--C.sub.6 H.sub.5,--NO.sub.2 in which R.sup.4, R.sup.5, R.sup.6 and R.sup.7 independently represent a hydrogen radical or a hydrocarbyl radical having from 1 to 20 carbon atoms;and a detergent and corrosion inhibited fuel composition containing same are provided.
    Type: Grant
    Filed: January 10, 1983
    Date of Patent: June 2, 1987
    Assignee: Texaco Inc.
    Inventors: Edward C. Nelson, William M. Sweeney
  • Patent number: 4666459
    Abstract: Disclosed are polyaminoalkenyl or alkyl succinimides which have been modified by treatment with a compound of the formula: ##STR1## wherein W is oxygen or sulfur; X is oxygen or sulfur; R.sub.4 is an alkylene group of from 2 to 3 carbon atoms or an alkylene group of from 2 to 3 carbon atoms substituted with from 1 to 3 alkyl groups of from 1 to 2 carbon atoms each; and R.sub.5 is hydrogen or alkyl of from 1 to 20 carbon atoms. The modified polyamino alkenyl or alkyl succinimides of this invention have been found to possess dispersancy and detergency in lubricating oils. These modified succinimides are also useful as dispersants and detergents in fuels.
    Type: Grant
    Filed: March 17, 1986
    Date of Patent: May 19, 1987
    Assignee: Chevron Research Company
    Inventor: Robert H. Wollenberg
  • Patent number: 4666461
    Abstract: Corrosion inhibiting additive compositions for use in alcohol and alcohol containing normally liquid hydrogen fuels derived by the reaction of at least one phosphoric acid reactant and at least one amine selected from the group consisting of morpholines and alkanolamines and alcohol and alcohol containing normally liquid hydrocarbon fuels containing said additive compositions are disclosed.
    Type: Grant
    Filed: January 17, 1986
    Date of Patent: May 19, 1987
    Assignee: The Lubrizol Corporation
    Inventor: Casper J. Dorer, Jr.
  • Patent number: 4662894
    Abstract: A process for producing a coal-water mixture includes forming dilatant coal particles in an aqueous coal feedstock mixture by treatment with ozone and classifying the coal feedstock mixture by treatment with ozone and classifying the coal feedstock to form first and second coal feed streams each comprised of differently-classified coal particles. Separate surge vessels receive the coal particles in a liquid medium forming each coal feed stream is determined and an electrical signal is delivered to a microprocessor for controlling the portions of each stream which are mixed together in the presence of a dispersing agent to form a coal-water mixture. The coal-water mixture is comprised of at least 65% by weight coal particles, preferably 70%.
    Type: Grant
    Filed: July 18, 1985
    Date of Patent: May 5, 1987
    Inventor: Edward H. Greenwald, Sr.
  • Patent number: 4661120
    Abstract: An improved cold weather diesel fuel treatment of the type comprising:______________________________________ Ingredients % by Weight ______________________________________ A. wax crystal modifier 10 to 50% B. sludge dispersant & stabilizer 1 to 10% C. hydrocarbon solvent 15 to 40% D. oil-soluble water solvent comprising 15 to 40% of a low molecular weight organic compound containing from 1 to 3 structural units having the formula: --CH.sub.2 CH.sub.2 O--.
    Type: Grant
    Filed: July 12, 1985
    Date of Patent: April 28, 1987
    Assignee: Nalco Chemical Company
    Inventors: Richard P. Carr, Marcos Y. Corpuz
  • Patent number: 4661274
    Abstract: Disclosed is an additive composition for lubricants and hydrocarbon fuel compositions formed by reacting an olefin, elemental sulfur, hydrogen sulfide, and a polymeric nitrogen-containing compound in a presence of a catalytic amount of an amine. The reaction product is effective when mixed in desired proportions with lubricants and with hydrocarbon fuels.
    Type: Grant
    Filed: January 13, 1986
    Date of Patent: April 28, 1987
    Assignee: Mobil Oil Corporation
    Inventors: Andrew G. Horodysky, Derek A. Law
  • Patent number: 4659337
    Abstract: A material is described having a use as a motor fuel additive for controlling engine octane requirement increase (ORI), controlling and reducing hydrocarbon and carbon monoxide engine emissions, and having carburetor detergency properties. Said material is the reaction product of maleic anhydride, a polyether polyamine, preferably a polyether diamine, and a hydrocarbyl polyamine, preferably an n-alkyl-alkylene diamine. A concentrate comprising the prescribed reaction product dissolved in a hydrocarbon solvent is also described. Motor fuels containing the reaction product additive of the instant invention show improved ORI control and carburetor detergency in comparison with motor fuels without said reaction product additive.
    Type: Grant
    Filed: January 23, 1986
    Date of Patent: April 21, 1987
    Assignee: Texaco Inc.
    Inventor: Rodney L. Sung
  • Patent number: 4659336
    Abstract: A motor fuel composition comprising a mixture of hydrocarbons in the gasoline boiling range containing in combination a reaction product component and a polyolefin polymer/copolymer component is described. The reaction product component is the reaction product of maleic anhydride, a polyether polyamine, and a hydrocarbyl polyamine. The polyolefin polymer/copolymer component is the polymer, copolymer, or corresponding hydrogenated polymer or copolymer of a C.sub.2 -C.sub.6 unsaturated hydrocarbon, said polymer or copolymer having a molecular weight in the range of 500-3500, preferably 650-2600.
    Type: Grant
    Filed: March 28, 1986
    Date of Patent: April 21, 1987
    Assignee: Texaco Inc.
    Inventors: Rodney L. Sung, Michael A. Caggiano, Milton D. Behrens
  • Patent number: 4659338
    Abstract: A fuel composition for internal combustion engines, and more particularly, a fuel composition for internal combustion engines containing less than about 0.5 gram of lead per liter of fuel is described. The fuel composition comprises a major amount of a liquid hydrocarbon fuel and a minor, property improving amount of(A) at least one hydrocarbon-soluble alkali or alkaline earth metal-containing composition, and(B) at least one hydrocarbon-soluble ashless dispersant.When a mixture of the metal-containing composition (A) and the ashless dispersant (B) are incorporated into gasolines containing less than about 0.5 gram of lead per liter of fuel, the treated fuel exhibits improved stability and water tolerance, and when the unleaded or low lead-containing fuels of the present invention are utilized in internal combustion engines, there is a significant reduction in valve seat recession.
    Type: Grant
    Filed: August 16, 1985
    Date of Patent: April 21, 1987
    Assignee: The Lubrizol Corporation
    Inventors: Thomas E. Johnston, Casper J. Dorer, Jr.
  • Patent number: 4659339
    Abstract: This invention relates to the inhibition of corrosion resulting from the presence of vanadium and sodium in fuels, for example, in residual fuels, such as in those fuels used in steam boilers, process heaters and gas turbines, etc., by adding Mg/Al/Si combinations thereto. Mg/Al/Si combinations are more effective than other inhibitors at a high Na/V ratio.
    Type: Grant
    Filed: February 5, 1979
    Date of Patent: April 21, 1987
    Assignee: Petrolite Corporation
    Inventors: Walter R. May, Michael J. Zetlmeisl
  • Patent number: 4657562
    Abstract: The product of reaction between a branched chain monocarboxylic acid amide, an epoxide and a carboxylic acid when added to a hydrocarbyl distillate fuel in minor effective amounts provides a fuel composition having improved cold flowability.
    Type: Grant
    Filed: October 21, 1985
    Date of Patent: April 14, 1987
    Assignee: Mobil Oil Corporation
    Inventors: Joan C. Axelrod, Sheldon Chibnik
  • Patent number: 4654156
    Abstract: Direct reaction products of (1) elemental sulfur and olefins and (2) resultant sulfurized olefins and amine-containing polymers are effective multifunctional lubricant additives providing antiwear, friction-modifying and thermal and oxidative stability to compositions thereof.
    Type: Grant
    Filed: September 12, 1985
    Date of Patent: March 31, 1987
    Assignee: Mobil Oil Corporation
    Inventors: Andrew G. Horodysky, Derek A. Law
  • Patent number: 4654050
    Abstract: An ester of a carboxy-containing interpolymer is disclosed, said interpolymer having an RSV of from about 0.05 to about 2. The esterified polymer will include at least an ester group (A) which is a carboxylic ester group having at least about 8 aliphatic carbon atoms in the ester group with the proviso that if the ester group (A) contains less than 28 carbon atoms, the interpolymer ester will include an ester group which is a carboxylic ester group having an ester group of the formula ##STR1## wherein R is a hydrocarbyl group of about 1 to about 50 carbon atoms, R' is a hydrocarbyl group of about 1 to about 50 carbon atoms, y is a number in the range of zero to about 50 and z is a number in the range of zero to about 50 with the proviso that both y and z cannot be zero. The interpolymer may include an ester group (C) which is a carboxylic ester group having no more than 7 aliphatic carbon atoms in the ester group.
    Type: Grant
    Filed: January 3, 1986
    Date of Patent: March 31, 1987
    Assignee: The Lubrizol Corporation
    Inventors: Frederick W. Koch, Jeffrey K. Long
  • Patent number: 4652270
    Abstract: A method of producing a stable, flowable carbonaceous-solid/water mixture, which comprises contacting a particulate carbonaceous solid and water mixture comprising a solid phase and an aqueous phase with an ion exchange material unit the conductivity of the aqueous phase is substantially reduced and removing the ion exchange material from the mixture, is disclosed.
    Type: Grant
    Filed: July 2, 1985
    Date of Patent: March 24, 1987
    Assignee: The University of Alabama
    Inventor: Leon Y. Sadler, III
  • Patent number: 4652273
    Abstract: A hydrocarbon middle distillate contains an additive for decreasing its cloud point, obtained by reacting an aliphatic dicarboxylic compound selected from the maleic and alkylmaleic anhydrides, the alkenylsuccinic and polyalkenylsuccinic anhydrides and the corresponding dicarboxylic acids and lower alkyl diesters with a compound of the formula:R--Z--(CH.sub.2).sub.n NH].sub.m HorHO--CH.sub.2 --R.sup.5 --NH.sub.2wherein R is a monovalent saturated aliphatic radical, Z is NR' or O, R' being hydrogen or an aliphatic radical, n is an integer from 2 to 4, m is zero or an integer from 1 to 4 and R.sup.5 is a divalent saturated aliphatic radical.
    Type: Grant
    Filed: May 23, 1985
    Date of Patent: March 24, 1987
    Assignees: Institut Francais du Petrole, Elf France
    Inventors: Paul Maldonado, Robert Leger, Choua Cohen, Bernard Sillion