Nitrogen Containing (i.e., Nitrogen And Boron In The Same Compound) Patents (Class 508/189)
  • Patent number: 10344240
    Abstract: The disclosed technology relates to a concentrated multi-functional additive that can be continuously dosed in internal combustion engines.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: July 9, 2019
    Assignee: The Lubrizol Corporation
    Inventor: Clara Fabre
  • Patent number: 10336963
    Abstract: A lubricating composition includes an oil of lubricating viscosity and an ionic tetrahedral borate compound which includes a cation and a tetrahedral borate anion which includes a boron atom, the boron atom having at least one aromatic bidentate di-oxo ligand. The compound may be represented by formula (I), where R1 and R2 are selected from C1-48 hydrocarbyl groups or together form a substituted or unsubstituted 5- or 6-membered ring; R3 and R4 together represent a substituted or unsubstituted aromatic ring; m is 0 or 1; X is hydrogen, a C1-24 hydrocarbyl group, —OR5, —NHR5, or ?O, R5 is a C1-24 hydrocarbyl group; M represents the cation; and n is at least 1. The cation may be selected to provide detergent and/or dispersant properties to the lubricating composition. In the case of ammonium cations, the molecular weight may be 260 g/mol or higher for providing a highly soluble compound, particularly when X is ?O.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: July 2, 2019
    Assignee: THE LUBRIZOL CORPORATION
    Inventors: James D. Burrington, Ewan Delbridge, Yanshi Zhang, John K. Pudelski
  • Patent number: 9150811
    Abstract: Disclosed is a method for improving copper corrosion performance of a lubricating oil composition containing (a) a major amount of a base oil of lubricating viscosity; and (b) one or more dispersants containing one or more basic nitrogen atoms. The method involves adding to the lubricating oil composition an effective amount of one or more copper corrosion performance improving agents containing one or more oil-soluble titanium compounds.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: October 6, 2015
    Assignee: Cherron Oronite Company LLC
    Inventors: Kenneth D. Nelson, Elaine S. Yamaguchi, Kam-Sik Ng, Paula S. Rogers
  • Publication number: 20140045734
    Abstract: The present invention relates to functional fluid compositions containing friction modifiers, and specifically stable compositions containing friction modifiers with limited solubility in and/or limited compatibility with the functional fluids with which they are used. In particular the present invention deals with functional fluids used in internal combustion engines, such as engine oils, and phosphorus-containing friction modifiers, where the friction modifier is present in the functional fluid composition at levels that would otherwise cause the composition to be unstable and/or hazy.
    Type: Application
    Filed: May 15, 2012
    Publication date: February 13, 2014
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: James D. Burrington, Ewan E. Delbridge, Danielle N. Ivancic
  • Patent number: 8592356
    Abstract: A lubricating oil composition used in an internal combustion engine contains lubricating base oil; a disulfide compound as a component (A), a no-boron-containing ashless dispersant as a component (B), and a boron-containing ashless dispersant as a component (C). The disulfide compound as the component (A) is represented by the following formula (1) and/or the following formula (2). The no-boron-containing ashless dispersant as the component (B) has in its side chain: an alkyl group having a number average molecular weight of 500 to 3,000; or an alkenyl group having a number average molecular weight of 500 to 3,000. The boron-containing ashless dispersant as the component (C) has in its side chain: an alkyl group having a number average molecular weight of 500 to 4,000; or an alkenyl group having a number average molecular weight of 500 to 4,000.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: November 26, 2013
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventor: Koki Ito
  • Patent number: 8569215
    Abstract: Disclosed is a transmission oil composition for use in a push belt continuously variable transmission (CVT). The push belt CVT oil composition includes a hydrogenated base oil or a synthetic base oil admixed with a viscosity control agent, a dispersing agent, a friction control agent and other additives at specific ratios and provides improved friction characteristics, durability, thermal stability, oxidation stability and transmission performance. It can be used at various temperature ranges and can provide improved transmission efficiency (fuel efficiency).
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: October 29, 2013
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Sang Yeob Cha
  • Patent number: 8536102
    Abstract: A gear oil additive composition and gear oil composition comprising a organic polysulfide having at least 30 wt % of a dialkyl polysulfide compound or mixture of dialkyl polysulfide compounds, a thiadiazole; and at least one ashless phosphorus-containing wear inhibitor compound is disclosed as having low yellow corrosion in axles and transmissions.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: September 17, 2013
    Assignee: Chevron Oronite Company LLC
    Inventor: Juan A. Buitrago
  • Patent number: 8507417
    Abstract: Disclosed are sulfur and phosphorous free, borated organomolybdenum compositions containing borated alcohols. These compositions can be formulated with ashless antioxidants and low levels of phosphorous containing antiwear compounds to provide improved lubricating compositions.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: August 13, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: William H. Buck, Douglas E. Deckman, L. Oscar Farng, Andrew G. Horodsky, Marcia G. Rogers, Thomas J. Karol
  • Patent number: 8445417
    Abstract: The invention relates to a lubricating composition containing (a) a borated phospholipid, (b) an amine salt of a phosphoric acid ester, and (c) an oil of lubricating viscosity. The invention further provides for the use of the lubricating composition for lubricating a limited slip differential.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: May 21, 2013
    Assignee: The Lubrizol Corporation
    Inventors: Mark R. Baker, Gabriel B. Rhoads
  • Publication number: 20130065802
    Abstract: Disclosed is a transmission oil composition for use in a push belt continuously variable transmission (CVT). The push belt CVT oil composition includes a hydrogenated base oil or a synthetic base oil admixed with a viscosity control agent, a dispersing agent, a friction control agent and other additives at specific ratios and provides improved friction characteristics, durability, thermal stability, oxidation stability and transmission performance. It can be used at various temperature ranges and can provide improved transmission efficiency (fuel efficiency).
    Type: Application
    Filed: November 18, 2011
    Publication date: March 14, 2013
    Applicants: KIA MOTORS CORPORATION, HYUNDAI MOTOR COMPANY
    Inventor: Sang Yeob Cha
  • Patent number: 8389449
    Abstract: A gear oil additive composition and gear oil composition comprising a organic polysulfide having at least 30 wt % of a dialkyl polysulfide compound or mixture of dialkyl polysulfide compounds, a thiadiazole; and at least one ashless phosphorus-containing wear inhibitor compound is disclosed as having low yellow corrosion in axles and transmissions.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: March 5, 2013
    Assignee: Chevron Oronite Company LLC
    Inventor: Juan A. Buitrago
  • Publication number: 20130005621
    Abstract: The present invention relates to functional fluid compositions containing friction modifiers, and specifically stable compositions containing friction modifiers with limited solubility in and/or limited compatibility with the functional fluids with which they are used. In particular the present invention deals with functional fluids used in internal combustion engines, such as engine oils, and friction modifiers derived from hydroxy-carboxylic acids, where the friction modifier is present in the functional fluid composition at levels that would otherwise cause the composition to be unstable and/or hazy.
    Type: Application
    Filed: November 17, 2010
    Publication date: January 3, 2013
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Ewan E. Delbridge, John J. Mullay, James D. Burrington, Jonathan R. Sharpe, John W. Dunkerley
  • Patent number: 8334242
    Abstract: Multi-functional additives which impart improved antioxidancy to lubricating oil compositions and frictional properties resulting in improved fuel economy in an internal combustion engine are disclosed. More particularly disclosed is a boron containing salt of an oil soluble hydroxylated amine and a hindered phenolic acid product prepared by: a) reacting an oil soluble hydroxylated amine of the general formula II: wherein A at each occurrence is each independently C2-C6 alkylene group; R is methyl or an alkyl or alkenyl group having C2-C24 carbon atoms; Y is hydrogen, C1-C6 alkyl group or A-OH; x is an integer of 1 or 2; and z is an integer of 0 or 1; with a boron containing compound under reactive conditions; and b) mixing the reaction product of step a) with a hindered phenolic acid.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: December 18, 2012
    Assignee: Chevron Oronite Company LLC
    Inventors: Yat Fan Suen, John Ward, Trevor Miller
  • Publication number: 20120316092
    Abstract: A lubricating oil composition for a continuously variable transmission contains at a specific content: (A) a mineral oil or PAO having a sulfur content of 0.03 mass % or less and a kinematic viscosity at 100 degrees C. from 1.5 mm2/s to 3 mm2/s; (B) a mineral oil or PAO having a sulfur content of 0.03 mass % or less and a kinematic viscosity at 100 degrees C. from 5.5 mm2/s to 8 mm2/s; (C) PAO having a kinematic viscosity at 100 degrees C. from 30 mm2/s to 400 mm2/s; and (D) a polymethacrylate having a mass average molecular weight of 10000 to 40000, in which the total content of the components (C) and (D) is 19 mass % or more and the lubricating oil composition has a kinematic viscosity at 100 degrees C. from 5.5 mm2/s to 6.5 mm2/s and a kinematic viscosity at ?20 degrees C. of 680 mm2/s or less.
    Type: Application
    Filed: November 24, 2010
    Publication date: December 13, 2012
    Applicants: JATCO Ltd., IDEMITSU KOSAN CO., LTD.
    Inventors: Hiroshi Fujita, Toshihiko Ichihashi, Kenji Kojima, Yoshie Arakawa, Makoto Maeda, Hideki Usuki
  • Patent number: 8138130
    Abstract: A multifunctional product is prepared by the reaction of an alkyl or alkenyl succinic acid derivative with a Fused-Ring Aromatic diamine, with a charge mole ratio of the diamine moiety in stoichiometric excess, under reactive conditions to thereby yield a multifunctional lubricant additive.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: March 20, 2012
    Assignee: Chevron Oronite Company LLC
    Inventors: Kenneth Dale Nelson, Edward A. Chiverton
  • Patent number: 8088720
    Abstract: The present invention is directed to method of making a green lubricant composition having improved wear protection and reduced phosphorus emissions.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: January 3, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Jacob J. Habeeb, Douglas E. Deckman, Brandon T. Weldon, William L. Maxwell
  • Patent number: 7902131
    Abstract: Molybdenum-free lubricating compositions are provided, having an antioxidation additive composition based on a combination of (1) alkylated diphenylamine (APDA), (2) polyamine dispersant, and (3) monoglyceride, ethoxylated amide, or mixtures thereof. Further synergy is achieved when component (3) is borated, allowing a reduction in phosphorus levels to below 0.08% or even a phosphorus-free composition.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: March 8, 2011
    Assignee: R.T. Vanderbilt Company, Inc.
    Inventors: Gaston A. Aguilar, Brian Stunkel, Steven G. Donnelly
  • Patent number: 7888299
    Abstract: In its broadest concept, the present invention relates to an improved gear oil comprising: a) a base oil having a viscosity range of 4 to 32 cSt at 100° C.; b) a maximum level of hydrocarbyl polysulfide with a minimum level of active S species; c) a dihydrocarbyl dithiophosphate ester or salt; and d) a dihydrocarbyl (mono)thiophosphate amine salt, essentially free of phosphite.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: February 15, 2011
    Assignee: Afton Chemical Japan Corp.
    Inventors: Jeffrey L. Milner, Masao Seki, Roger M. Sheets, Kenji Yatsunami
  • Patent number: 7871965
    Abstract: A gear oil additive composition and gear oil composition comprising a organic polysulfide having at least 30 wt % of a dialkyl polysulfide compound or mixture of dialkyl polysulfide compounds, a thiadiazole; and at least one ashless phosphorus-containing wear inhibitor compound is disclosed as having low yellow corrosion in axles and transmissions.
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: January 18, 2011
    Assignee: Chevron Oronite Company LLC
    Inventor: Juan Buitrago
  • Publication number: 20100144567
    Abstract: A lubricating oil composition used in an internal combustion engine contains lubricating base oil; a disulfide compound as a component (A), a no-boron-containing ashless dispersant as a component (B), and a boron-containing ashless dispersant as a component (C). The disulfide compound as the component (A) is represented by the following formula (1) and/or the following formula (2). The no-boron-containing ashless dispersant as the component (B) has in its side chain: an alkyl group having a number average molecular weight of 500 to 3,000; or an alkenyl group having a number average molecular weight of 500 to 3,000. The boron-containing ashless dispersant as the component (C) has in its side chain: an alkyl group having a number average molecular weight of 500 to 4,000; or an alkenyl group having a number average molecular weight of 500 to 4,000.
    Type: Application
    Filed: May 21, 2008
    Publication date: June 10, 2010
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventor: Koki Ito
  • Patent number: 7691794
    Abstract: Disclosed herein are reaction products of an acidic organic compound, a boron compound, and an alkoxylated amine and/or alkoxylated amide. Also disclosed are lubricating oil compositions and fuel compositions containing the reaction products.
    Type: Grant
    Filed: January 4, 2006
    Date of Patent: April 6, 2010
    Assignee: Chemtura Corporation
    Inventor: Ronald J. Muir
  • Patent number: 7674754
    Abstract: A water-based metalworking fluid is comprised of a polymeric boron species which includes at least B, N and H, together with a surfactant operable to provide an emulsion of the boron species with water. The polymeric boron species may be a polyborane or a borazine polymer and may be configured as a polyborane or borazine polymer backbone having side chains pendent thereupon. The side chains may include silicon and/or phosphorous. The silicon may be in the form of a silane or a siloxane species, including polymeric species. Disclosed are specific compositions as well as methods for using the compositions and methods for making the compositions.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: March 9, 2010
    Assignee: Masco Corporation
    Inventors: John Noble, Philip B. Simon, Ross Smith
  • Publication number: 20090325830
    Abstract: This invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity with an iodine number less than about 9, (A) one or more antioxidant, and (B) from about 0.01% to about 3% by weight of at least one dispersant or detergent, wherein the total amount of antioxidant is at least about 2% by weight. The additives are useful act controlling oxidation of lubricants. Further, these lubricants have reduced viscosity increase caused by oxidation, while maintaining favorable carbon/varnish ratings.
    Type: Application
    Filed: July 23, 2009
    Publication date: December 31, 2009
    Inventors: Eric R. Schnur, Robert C. Richardson, James J. Schwind
  • Patent number: 7629300
    Abstract: A composition is disclosed that comprises the reaction product of an acidic organic compound, a boron compound, and a basic organic compound. The composition is useful as a detergent additive for lubricants and hydrocarbon fuels.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: December 8, 2009
    Assignee: Chemtura Corporation
    Inventor: Ronald J. Muir
  • Patent number: 7622431
    Abstract: Reaction products of an acidic organic compound, a boron compound, and an alkoxylated amine and/or alkoxylated amide. Also disclosed are lubricating oil compositions and fuel compositions containing the reaction products.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: November 24, 2009
    Assignee: Chemtura Corporation
    Inventor: Ronald J. Muir
  • Patent number: 7618467
    Abstract: A composition is disclosed that comprises the reaction product of an acidic organic compound, a boron compound, and a basic organic compound. The composition is useful as a detergent additive for lubricants and hydrocarbon fuels.
    Type: Grant
    Filed: January 17, 2005
    Date of Patent: November 17, 2009
    Assignee: Chemtura Corporation
    Inventor: Ronald J. Muir
  • Patent number: 7544644
    Abstract: A novel hydroxyalkyldithiocarbamate borate ester compound is presented according to the formula: where R=alkyl C1 to C25; R?=H or CO2R; R?=(CH2)mOH where m=1 to 8, or alkyl C1 to C25; n=1 to 8. The borate ester compound is prepared by reacting boric acid with a novel hydroxyalkyldithiocarbamate ester compound according to the formula, and optionally with an alcohol: where R, R?, R? and n are as above. The hydroxyalkyldithiocarbamate ester is prepared by reacting a hydroxyalkylamine with CS2, and an acrylate or maleate compound. A lubricating composition is based on a major amount of lubricating oil and a minor amount of the hydroxyalkyldithiocarbamate borate ester.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: June 9, 2009
    Assignee: R.T. Vanderbilt, Inc.
    Inventors: Kevin J. Chase, Ronald Tepper
  • Publication number: 20090099049
    Abstract: Reaction products of an acidic organic compound, a boron compound, and an alkoxylated amine and/or alkoxylated amide. Also disclosed are lubricating oil compositions and fuel compositions containing the reaction products.
    Type: Application
    Filed: December 16, 2008
    Publication date: April 16, 2009
    Inventor: Ronald J. Muir
  • Patent number: 7414014
    Abstract: A method and system to reduce fuel consumption and environmental impact in a two-stroke engine. Fresh system oil having a TBN less than 10 is provided and used in the two-stroke engine to produce partially used system oil. The partially used system oil is withdrawn from the two stroke engine and at least one friction modifier is added to at least some of the withdrawn partially used system oil, wherein the addition of the at least one friction modifier reduces the friction coefficient of the withdrawn system oil, resulting in a system oil having reduced friction. The system oil with reduced friction is combined with partially used system oil remaining in said two-stroke and the combined system oil is used to lubricate pistons of said two-stroke engine.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: August 19, 2008
    Assignee: A.P. Moeller-Maersk/AS
    Inventors: Giuseppe Natoli, Giulio Giovanni Pometto, Alfio Bonciolini, Hans Heinrich Petersen, Jørn Dragsted, Claus Martin Olesen, Klaus-Werner Damm
  • Patent number: 7407917
    Abstract: An additive compound comprising a non-borated and/or borated reaction product, in which the reaction product is obtained by reacting a linear or branched, saturated or unsaturated monovalent aliphatic acid having 8 to 22 carbon atoms, urea, and polyalkylenepolyamine, when employed in a lubricating oil composition is favorably employable as an automatic transmission fluid of internal combustion engines.
    Type: Grant
    Filed: November 16, 2004
    Date of Patent: August 5, 2008
    Assignee: Chevron Oronite Company LLC
    Inventors: Michio Shiga, Tomotusgu Shiroi
  • Patent number: 7026273
    Abstract: A crankcase lubricating oil composition comprises an oil of lubricating viscosity, in a major amount, and, in respective minor amounts, a boron-containing additive and one or more co-additives, wherein the lubricating oil composition has greater than 200 ppm by mass of boron, less than 600 ppm by mass of phosphorus and less than 4000 ppm by mass of sulfur, based on the mass of the oil composition. Such compositions demonstrate provide improved wear performance.
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: April 11, 2006
    Assignee: Infineum International Limited
    Inventors: Robert Robson, Roger W. Glyde, Alisdair J. Brown, Simon S. M. Chung, Stephen Arrowsmith
  • Publication number: 20040038834
    Abstract: This invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity, (A) an antiwear improving amount of at least one molybdenum containing composition, (B) at least one phosphorus antiwear or extreme pressure agent, and (C) at least one dispersant, provided that the lubricating composition is free of polysulfurized olefins. The lubricating compositions have improved antiwear properties. When the lubricating composition is used in a manual transmission, the amount of brass wear is reduced.
    Type: Application
    Filed: August 21, 2003
    Publication date: February 26, 2004
    Inventor: Michael P. Gahagan
  • Publication number: 20030148895
    Abstract: A crankcase lubricating oil composition comprises an oil of lubricating viscosity, in a major amount, and, in respective minor amounts, a boron-containing additive and one or more co-additives, wherein the lubricating oil composition has greater than 200 ppm by mass of boron, less than 600 ppm by mass of phosphorus and less than 4000 ppm by mass of sulfur, based on the mass of the oil composition. Such compositions demonstrate provide improved wear performance.
    Type: Application
    Filed: October 22, 2002
    Publication date: August 7, 2003
    Inventors: Robert Robson, Roger W. Glyde, Alisdair J. Brown, Simon S. M. Chung, Stephen Arrowsmith
  • Patent number: 6451745
    Abstract: Continuously variable transmission can be lubricated by supplying to them a composition of (a) an oil of lubricating viscosity; (b) a dispersant; and (c) a detergent. At least one of the dispersant (b) and the detergent (c) is a borated species, and the amount of boron present in the composition is sufficient to impart improved friction and anti-seizure properties to the composition when employed in said transmission.
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: September 17, 2002
    Assignee: The Lubrizol Corporation
    Inventor: William C. Ward
  • Publication number: 20020119895
    Abstract: This invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity and (A) an antiwear improving amount of at least one molybdenum containing composition, and (B) at least one member selected from the group consisting of (i) at least one borated overbased metal salt of an acidic organic compound, provided that (A) and (Bi) are not the same, (ii) a combination of (a) at least one organic polysulfide or at least one ashless dithiocarbamate containing composition and (b) at least one component selected from the group consisting of a metal thiophosphate, a phosphoric acid ester or salt thereof, a phosphorus-containing carboxylic acid, ester, ether, or amide, a borated dispersant, an alkali metal borate, a borated fatty amine, a borated phospholipid, a borate ester, and mixtures thereof, and (iii) a combination of (i) and (ii).
    Type: Application
    Filed: May 26, 1995
    Publication date: August 29, 2002
    Inventors: SUSAN P. COOK, JAMES J. SCHWIND, BERNARD CONSTANS, HENRI BOURGOGNON
  • Patent number: 6251840
    Abstract: A lubricating/functional fluid composition which exhibits in use improved antiwear and antifoaming properties. The improvements result from use of 2,5-dimercapto-1,3,4-thiadiazole and derivatives thereof together with silicone and/or fluorosilicone antifoam agents.
    Type: Grant
    Filed: January 14, 1997
    Date of Patent: June 26, 2001
    Assignee: The Lubrizol Corporation
    Inventors: William C. Ward, Jr., Craig D. Tipton, Kathleen A. Murray
  • Patent number: 6248702
    Abstract: The invention provides dispersants and dispersant viscosity index improvers which include polymers of conjugated dienes which have been hydrogenated, functionalized, optionally modified, and post treated. The dispersant substances include a copolymer of two different conjugated dienes and an aryl-substituted olefin. The polymers are selectively hydrogenated to produce polymers which have highly controlled amounts of unsaturation, permitting highly selective functionalization. Also provided are lubricant fluids, such as mineral and synthetic oils, which have been modified in their dispersancy and/or viscometric properties by means of the dispersant substances of the invention. Also provided are methods of modifying the dispersancy and/or viscometric properties of lubricating fluids such as mineral and synthetic lubricating oils. The dispersant substances may also include a carrier fluid to provide dispersant concentrates.
    Type: Grant
    Filed: November 30, 1998
    Date of Patent: June 19, 2001
    Assignee: Mobil Oil Corporation
    Inventors: Thomas S. Coolbaugh, Frederick C. Loveless, John E. Marlin, II, Demetreos N. Matthews
  • Patent number: 6228817
    Abstract: The invention provides dispersants and dispersant viscosity index improvers which include polymers of conjugated dienes which have been hydrogenated, functionalized, optionally modified, and post treated. The dispersant substances include a copolymer of two different conjugated dienes. The polymers are selectively hydrogenated to produce polymers which have highly controlled amounts of unsaturation, permitting highly selective functionalization. Also provided are lubricant fluids, such as mineral and synthetic oils, which have been modified in their dispersancy and/or viscometric properties by means of the dispersant substances of the invention. Also provided are methods of modifying the dispersancy and/or viscometric properties of lubricating fluids such as mineral and synthetic lubricating oils. The dispersant substances may also include a carrier fluid to provide dispersant concentrates.
    Type: Grant
    Filed: June 23, 1998
    Date of Patent: May 8, 2001
    Assignee: Mobil Oil Corporation
    Inventors: Thomas S. Coolbaugh, John E. Marlin, II, Demetrios N. Matthews, Kenneth G. Stensler, Frederick C. Loveless
  • Patent number: 6162768
    Abstract: The invention provides dispersants and dispersant viscosity index improvers which include polymers of conjugated dienes which have been hydrogenated, functionalized, optionally modified and post treated. The dispersant substances include a copolymer of two different conjugated dienes. The polymers are selectively hydrogenated to produce polymers which have highly controlled amounts of unsaturation, permitting highly selective functionalization. The polymers may be functionalized by grafting of heteroatom-containing olefins. Also provided are lubricant fluids, such as mineral and synthetic oils, which have been modified in their dispersancy and/or viscometric properties by means of the dispersant substances of the invention. Also provided are methods of modifying the dispersancy and/or viscometric properties of lubricating fluids such as mineral and synthetic lubricating oils. The dispersant substances may also include a carrier fluid to provide dispersant concentrates.
    Type: Grant
    Filed: June 23, 1998
    Date of Patent: December 19, 2000
    Assignee: Mobil Oil Corporation
    Inventors: Thomas S. Coolbaugh, Frederick C. Loveless, John E. Marlin, II, Demetreos N. Matthews
  • Patent number: 6096691
    Abstract: The concentrates comprise specified proportions of diluent oil, an organic sulfur-containing antiwear and/or extreme pressure agent, an ashless dispersant, a dimethyl ester of an aliphatic phosphonic acid in which the aliphatic group has an average in the range of about 12 to about 24 carbon atoms, and a 3-hydrocarbyl-2,5-diketopyrrolidine in which the hydrocarbyl group is an alkyl or alkenyl group having an average in the range of about 12 to about 30 carbon atoms. By using weight ratios of diketopyrrolidine to the dimethyl phosphonate of at least 3:1, the concentrate remains homogeneous at temperatures at least as low as 12.degree. C. When utilized as a top treat in gear oils formulated with conventional GL-4 and GL-5 gear additive packages substantial improvements in limited slip axle performance can be realized.
    Type: Grant
    Filed: April 9, 1993
    Date of Patent: August 1, 2000
    Assignee: Ethyl Corporation
    Inventors: Gregory S. Conary, Rolfe J. Hartley
  • Patent number: 6001779
    Abstract: A lubricating oil composition has an oil of lubricating viscosity, plus minor portions of alkylated aminophenol and zinc dithiophosphate. Preferably, about 75 mol % of the alkyl groups of the zinc dithiophosphate are derived from primary alcohols. The alkylated aminophenol can be a borated 4-alkyl-2-aminophenol having, as its alkyl group, a polypropylene tetramer having from 18 to 30 carbon atoms.
    Type: Grant
    Filed: September 8, 1993
    Date of Patent: December 14, 1999
    Assignee: Chevron Chemical Company LLC
    Inventor: Elaine S. Yamaguchi
  • Patent number: 5942470
    Abstract: Gear oils and gear oil additive concentrates of enhanced positraction performance are described. They comprise: (i) at least one oil-soluble sulfur-containing extreme pressure or antiwear agent; (ii) at least one oil-soluble amine salt of a partial ester of an acid of phosphorus; and (iii) at least one oil-soluble succinimide of the formula ##STR1## where R.sub.1 is an alkyl or alkenyl group having an average of 8 to 50 carbon atoms, and each of R.sub.2, R.sub.3 and R.sub.4 is a hydrogen atom or an alkyl or alkenyl group having an average of up to about 4 carbon atoms. These compositions preferably contain one, more preferably two, and most preferably all three of the following additional components: (iv) at least one amine salt of a carboxylic acid; (v) at least one nitrogen-containing ashless dispersant; and (vi) at least one trihydrocarbyl ester of a pentavalent acid of phosphorus.
    Type: Grant
    Filed: May 19, 1998
    Date of Patent: August 24, 1999
    Assignee: Ethyl Petroleum Additives, Inc.
    Inventors: Stephen Norman, Donald G. Campbell, Gregory S. Conary
  • Patent number: 5817605
    Abstract: Oil-based functional fluid compositions formulated for use as automatic transmission fluid, fluid for a wet brake system, or a friction-depending lubricant are improved by including in the composition a minor amount of at least one alcohol or polyol having less than 12 carbon atoms in the molecule. This results in a desirable increase in the dynamic and/or static coefficients of friction of automatic transmission or other frictional surfaces contacted by the composition. Preferred for this use is a composition formed by heating at least one ashless dispersant containing basic nitrogen and/or at least one hydroxyl group with a combination of at least (i) an inorganic acid of phosphorus, (ii) a boron compound, and (iii) a polyol having less than 12 carbon atoms, so that a liquid composition is formed. The boron compound and the inorganic phosphorus acid are preferably co-present during the heating.
    Type: Grant
    Filed: June 3, 1991
    Date of Patent: October 6, 1998
    Assignee: Ethyl Petroleum Additives, Inc.
    Inventor: Andrew G. Papay
  • Patent number: 5646098
    Abstract: The invention relates to novel compositions comprising ene and free radical adducts of unsaturated and saturated hydrocarbons, and acyclic and cyclic vicinal polycarbonyl compounds such as diethyl ketomalonate and indantrione. The adducts are reacted with nucleophiles such as amines, electrophiles such as anhydrides and esters, and metal ions. Post-products are obtained via reaction of said products with capping reagents such as boric acid. Compositions containing said adducts, products and post-products include oleaginous substances such as fuels and lube oils.
    Type: Grant
    Filed: May 13, 1994
    Date of Patent: July 8, 1997
    Assignee: Exxon Chemical Patents Inc
    Inventor: Stanley J. Brois
  • Patent number: 5639716
    Abstract: Oil-soluble dispersant additives are disclosed. The additives comprise the reaction product of a functionalized 1-butene copolymer and at least one nucleophilic reactant selected from amines, amino alcohols, alcohols, and reactive metal compounds. The functionalized copolymer has within its structure at least one acyl functional group selected from the group consisting of C.sub.4 to C.sub.10 dicarboxylic acids and derivatives thereof and C.sub.3 to C.sub.10 monocarboxylic acids and derivatives thereof. The 1-butene copolymer is derived from 1-butene and at least one other .alpha.-olefin of formula CH.sub.2 .dbd.CHR', wherein R' is methyl or a C.sub.3 to C.sub.12 linear or branched alkyl group. The copolymer has a number average molecular weight of at least about 700, a molecular weight distribution of less than 5, and ethenylidene groups terminating at least about 30% of all polymer chains.
    Type: Grant
    Filed: June 9, 1994
    Date of Patent: June 17, 1997
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Albert Rossi, Jacob I. Emert, Warren A. Thaler
  • Patent number: 5628804
    Abstract: A polyether esteramide reaction product effective as a fuel additive for reducing intake valve deposits and octane requirement increase, as well as controlling combustion chamber deposits, in gasoline engines is disclosed together with fuel compositions and methods of making and using the same. The polyether esteramide reaction product contains two carbonyl groups. Preferably, the polyether esteramide contains an oxalyl group. Also disclosed are compositions and methods for dispersing deposits in lubricating oil products.
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: May 13, 1997
    Assignee: Ethyl Corporation
    Inventor: John T. Loper
  • Patent number: 5620948
    Abstract: This invention relates to a composition, comprising: (A) a Mannich dispersant having a base number in the range of about 45 to about 90; (B) a boron compound; and (C) an organic phosphorus acid or ester, or derivative of said phosphorus acid or ester. In one embodiment, this composition further comprises (D) a thiocarbamate. In one embodiment, this composition further comprises (E) a nitrogen-containing ester of a carboxy-containing interpolymer. These compositions are useful as additives for lubricants and functional fluids, and are particularly useful as additives for automatic transmission fluids for enhancing the torque characteristics such automatic transmission fluids.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: April 15, 1997
    Assignee: The Lubrizol Corporation
    Inventor: Craig D. Tipton
  • Patent number: 5583099
    Abstract: This invention describes nitrogen containing compounds which are boronated in the presence of a protic material such as water or an alcohol or mixtures thereof.
    Type: Grant
    Filed: May 16, 1996
    Date of Patent: December 10, 1996
    Assignee: The Lubrizol Corporation
    Inventor: Thomas F. Steckel
  • Patent number: 5571445
    Abstract: A "cold-clash" gear problem associated with vehicular manual transmissions exposed to the cold is overcome by use of a special all-synthetic gear oil composition. The composition is composed of base oil and specified additive components. The base oil is a blend of dialkyl ester of an aliphatic dicarboxylic acid having a maximum pour point of about -55.degree. C. and a maximum kinematic viscosity at 100.degree. C. of about 4 cSt, and three hydrogenated poly-.alpha.-olefin oligomers having kinematic viscosities at 100.degree. C. of about 40, about 4-8 cSt and about 2 cSt in specified proportions. The additive components comprise an organic sulfur-containing antiwear and/or extreme pressure agent, an organic phosphorus-containing antiwear and/or extreme pressure agent, a copper corrosion inhibitor, a rust inhibitor, a foam inhibitor, and an ashless dispersant. The gear oil has a boron content of about 0.0025 to about 0.07 wt %.
    Type: Grant
    Filed: September 21, 1995
    Date of Patent: November 5, 1996
    Assignee: Ethyl Corporation
    Inventors: Sanjay Srinivasan, Rolfe J. Hartley
  • Patent number: 5561103
    Abstract: Compositions of matter containing self condensation reaction products of alkylthio alkanols and dispersants which are found to have utility in lubricating/functional fluids.
    Type: Grant
    Filed: September 25, 1995
    Date of Patent: October 1, 1996
    Assignee: The Lubrizol Corporation
    Inventor: Craig D. Tipton