Nitrogen Attached Directly Or Indirectly To The Hetero Ring By Nonionic Bonding Patents (Class 508/293)
  • Patent number: 10190070
    Abstract: A grafted polymer, either polyolefin or polyester, containing monomers associated with sludge and varnish control as well as monomers associated with soot handling to provide a graft polymer exhibiting multiple performance attributes. Also described are methods for manufacturing these novel multiple-function graft polymers via solution and melt processes. Lubricating oil compositions containing these novel multiple-function polymers as an additive that display performance characteristics directed to good soot handling and sludge and varnish control as well as control of viscosity increase are described.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: January 29, 2019
    Assignee: Castrol Limited
    Inventors: Irwin L. Goldblatt, Shean-Jer Chen, Richard P. Sauer
  • Patent number: 9890347
    Abstract: A composition of an oil-soluble ionic detergent that does not contribute metal ions to the composition, and which comprises a quaternary non-metallic pnictogen cation and an organic anion having at least one hydrocarbyl group of sufficient length to impart oil solubility to the detergent, the detergent having a total base number (TBN) to total acid number (TAN) ratio of at least 2:1 imparts ash-free basicity to a lubricant composition.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: February 13, 2018
    Assignee: The Lubrizol Corporation
    Inventors: Ewan E. Delbridge, Virginia A. Carrick, John K. Pudelski, Matthew D. Giesleman, Christopher L. Friend, Patrick E. Mosier, Michele M. Rogers, Mark T. Tierney
  • Patent number: 9469824
    Abstract: A composition of an oil-soluble ionic detergent that does not contribute metal ions to the composition, and which comprises a quaternary non-metallic pnictogen cation and an organic anion having at least one hydrocarbyl group of sufficient length to impart oil solubility to the detergent, the detergent having a total base number (TBN) to total acid number (TAN) ratio of at least 2:1 imparts ash-free basicity to a lubricant composition.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: October 18, 2016
    Assignee: The Lubrizol Corporation
    Inventors: Ewan E. Delbridge, Virginia A. Carrick, John K. Pudelski, Matthew D. Giesleman, Christopher L. Friend, Patrick E. Mosier, Michele M. Rogers, Mark T. Tierney
  • Patent number: 8853422
    Abstract: The present disclosure relates to a compound of the formula I or a tribologically acceptable salt, solvate, hydrate, or proadditive thereof, wherein R1, R2 and R4 are as defined herein. Such novel pyrrolidine, or succinimide, derivatives may be useful as friction modifiers in lubricant compositions. This disclosure also relates to a method of using such friction modifier compounds in lubricating fluid formulations to lubricate machine parts, including gear, axle, engine, and transmission parts, and to lubricant compositions containing such friction modifier compounds.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: October 7, 2014
    Assignee: Afton Chemical Corporation
    Inventors: Roger M. Sheets, Nubar Ozbalik
  • Patent number: 8748359
    Abstract: An oil-soluble lubricating oil additive composition prepared by the process which comprises reacting (A) reacting a copolymer of an (i) an unsaturated acidic reagent; and (ii) a mono-olefin, with at least one linking hydrocarbyl di-primary amine, thereby producing a hybrid succinic anhydride copolymer having from about 10% to about 90% unreacted anhydride groups; and subsequently (B) reacting the hybrid succinic anhydride copolymer with a second amine compound, thereby producing the succinimide; and (C) reacting the succinimide with at least one post-treating agent selected from a cyclic carbonate, a linear mono-carbonate, a linear poly-carbonate, an aromatic polycarboxylic acid, an aromatic polycarboxylic anhydride, an aromatic polycarboxylic acid ester, or mixtures thereof.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: June 10, 2014
    Assignee: Chevron Oronite Company LLC
    Inventors: James J. Harrison, Mitra Hosseini
  • Patent number: 8696929
    Abstract: A polishing slurry including an oxidant, a metal oxide dissolver, a metal inhibitor and water and having a pH from 2 to 5. The polishing slurry having a high metal-polishing rate, reducing etching rate and polishing friction, results in the production, with high productivity, of semiconductor devices reduced in dishing and erosion in metal wiring.
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: April 15, 2014
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Yasushi Kurata, Katsuyuki Masuda, Hiroshi Ono, Yasuo Kamigata, Kazuhiro Enomoto
  • Publication number: 20140066345
    Abstract: The invention provides a lubricating composition containing an oil of lubricating viscosity, an additive containing a polymeric backbone and at least one amino group. The invention further provides for the additive to have dispersant and/or dispersant viscosity modifying properties. The lubricating composition is suitable for lubricating an internal combustion engine.
    Type: Application
    Filed: November 11, 2013
    Publication date: March 6, 2014
    Inventors: Matthew D. Gieselman, Friend L. Christopher, Preston J. Adam
  • Patent number: 8624038
    Abstract: The present disclosure relates to a compound of the formula I or a tribologically acceptable salt, solvate, hydrate, or proadditive thereof, wherein R1, R2 and R4 are as defined herein. Such novel pyrrolidine, or succinimide, derivatives may be useful as friction modifiers in lubricant compositions. This disclosure also relates to a method of using such friction modifier compounds in lubricating fluid formulations to lubricate machine parts, including gear, axle, engine, and transmission parts, and to lubricant compositions containing such friction modifier compounds.
    Type: Grant
    Filed: June 16, 2008
    Date of Patent: January 7, 2014
    Assignee: Afton Chemical Corporation
    Inventors: Roger Sheets, Nubar Ozbalik
  • 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: 8557752
    Abstract: There is provided an automatic transmission fluid composition comprising a major amount of a base oil; one or more friction modifiers, wherein total nitrogen content provided by the one or more friction modifiers is greater than or equal to about 300 ppm; and one or more ashless dispersants, wherein the total nitrogen content provided by the one or more ashless dispersants is greater than or equal to about 500 ppm. The automatic transmission fluid may have a kinematic viscosity at 100° C. of from about 4 cSt to about 6.5 cSt and a Brookfield viscosity at ?40 ° C. of from about 4,000 cP to about 20,000 cP.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: October 15, 2013
    Assignee: Afton Chemical Corporation
    Inventors: Nubar Ozbalik, Kenji Yatsunami, Samuel H. Tersigni, Lee D. Saathoff
  • Patent number: 8410032
    Abstract: A lubricant composition, a multi-vehicle transmission fluid, and a method for making a transmission fluid. The lubricant composition includes a) a base oil; b) 2,5-dimercapto-1,3,4-thiadiazole (DMTD), a derivative of DMTD, or mixtures thereof; and c) a friction modifier. The friction modifier is made by reacting an olefin containing at least 40% by weight C10-C36 vinylidene olefin with maleic acid, anhydride, or ester to provide a first reaction product, and aminating the first reaction product with an effective amount of a compound containing basic nitrogen to provide the friction modifier. The C10-C36 vinylidene olefin is represented by the following formula: wherein Rc and Rd are independently a (C3-C15) alkyl, cycloalkyl or cycloalkenyl.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: April 2, 2013
    Assignee: Afton Chemical Corporation
    Inventors: Joseph B. Carroll, Christopher S. Cleveland
  • Patent number: 8222191
    Abstract: The present invention relates to a lubricating composition containing an oil of lubricating viscosity, a metal containing antiwear agent and a metal containing dispersant. The invention further provides for a method for lubricating a hydraulic system.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: July 17, 2012
    Assignee: The Lubrizol Corporation
    Inventor: Allan Barber
  • Patent number: 8153567
    Abstract: The invention provides for the use of at least one oil-soluble polyoxyalkylene compound, this polyoxyalkylene compound being an oil-soluble ester, ether or ether/ester of alkoxylated polyols having at least three repeat alkoxy units derived from alkylene oxides having from 2 to 5 carbon atoms per OH group of the polyol which bears at least two aliphatic hydrocarbon radicals having from 12 to 30 carbon atoms for improving the response behavior of mineral oil cold flow improvers in middle distillates which comprise at least one ashless, nitrogen-containing detergent additive which is an oil-soluble amphiphilic compound which comprises at least one alkyl or alkenyl radical which is bonded to a polar group, the alkyl or alkenyl radical comprising from 10 to 500 carbon atoms and the polar group comprising 2 or more nitrogen atoms.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: April 10, 2012
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Matthias Krull, Robert Janssen, Werner Reimann
  • 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
  • Publication number: 20120010112
    Abstract: The present invention relates to novel acid-free quaternized nitrogen compounds, to the preparation thereof and to the use thereof as a fuel and lubricant additive, more particularly as a detergent additive, as a wax antisettling additive (WASA) or as an additive for reducing internal diesel injector deposits (IDID); to additive packages which comprise these compounds; and to fuels and lubricants thus additized. The present invention further relates to the use of these acid-free quaternized nitrogen compounds as a fuel additive for reducing or preventing deposits in the injection systems of direct-injection diesel engines, especially in common-rail injection systems, for reducing the fuel consumption of direct-injection diesel engines, especially of diesel engines with common-rail injection systems, and for minimizing power loss in direct-injection diesel engines, especially in diesel engines with common-rail injection systems.
    Type: Application
    Filed: July 6, 2011
    Publication date: January 12, 2012
    Applicant: BASF SE
    Inventors: Wolfgang Grabarse, Harald Böhnke, Christian Tock, Cornelia Röger-Göpfert, Ludwig Völkel
  • Patent number: 8093189
    Abstract: Lubricating oil compositions are provided that inhibit coolant-induced oil filter plugging in heavy-duty diesel engines, and particularly CJ-4 and CI-4 PLUS compliant lubricating oil compositions that inhibit coolant-induced oil filter plugging in exhaust gas recirculation or recycle engines.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: January 10, 2012
    Assignee: Afton Chemical Corporation
    Inventors: Cathy C. Devlin, Charles A. Passut, Paul G. Griffin
  • Patent number: 8022022
    Abstract: A molybdated succinimide complex is disclosed which is prepared by a process comprising (a) reacting an alkyl or alkenyl succinimide of a polyamine of formula I wherein R is an about C12 to about C30 alkyl or alkenyl group; a and b are independently 2 or 3, and x is 0 to 10, with an ethylenically unsaturated carboxylic acid or anhydride thereof; and (b) reacting the product of step (a) with an acidic molybdenum compound. Also disclosed is a lubricating oil composition containing at least (a) a major amount of a base oil of lubricating viscosity and (b) a minor amount of the molybdated succinimide complex.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: September 20, 2011
    Assignee: Chevron Oronite Company LLC
    Inventors: Kenneth D. Nelson, Edward A. Chiverton
  • Patent number: 8022023
    Abstract: A molybdated succinimide complex is disclosed which is prepared by a process comprising (a) reacting a succinimide of a polyamine of formula I: wherein R is a hydrocarbon radical having a number average molecular weight of about 500 to about 5,000, a and b are independently 2 or 3, and x is 0 to 10, with an ethylenically unsaturated carboxylic acid or anhydride thereof, in a charge mole ratio of the ethylenically unsaturated carboxylic acid or anhydride thereof to the succinimide of formula I of about 0.9:1 to about 1.05:1; and (b) reacting the succinimide product of step (a) with an acidic molybdenum compound. Also disclosed is a lubricating oil composition containing at least (a) a major amount of a base oil of lubricating viscosity and (b) a minor amount of the molybdated succinimide complex.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: September 20, 2011
    Assignee: Chevron Oronite Company LLC
    Inventors: Kenneth D. Nelson, Edward A. Chiverton
  • Publication number: 20100137173
    Abstract: The present disclosure relates to a compound of the formula I or a tribologically acceptable salt, solvate, hydrate, or proadditive thereof, wherein R1, R2 and R4 are as defined herein. Such novel pyrrolidine, or succinimide, derivatives may be useful as friction modifiers in lubricant compositions. This disclosure also relates to a method of using such friction modifier compounds in lubricating fluid formulations to lubricate machine parts, including gear, axle, engine, and transmission parts, and to lubricant compositions containing such friction modifier compounds.
    Type: Application
    Filed: June 16, 2008
    Publication date: June 3, 2010
    Inventors: Roger Sheets, Nubar Ozbalik
  • Patent number: 7651984
    Abstract: A lubricant in the form of a water or oil insoluble solvent in oil emulsion is described where a base (soluble or dispersible in said oil-insoluble solvent or water) is present in the dispersed phase. These lubricants are beneficial in various applications such as internal combustion engines where the oil needs enough basicity to neutralize any inorganic acids generated by sulfur present in the fuel.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: January 26, 2010
    Assignee: The Lubrizol Corporation
    Inventors: Stephen J. Cook, Alexandra Mayhew, Helena M. Cressey
  • Publication number: 20090325833
    Abstract: A molybdated succinimide complex is disclosed which is prepared by a process comprising (a) reacting a succinimide of a polyamine of formula I: wherein R is a hydrocarbon radical having a number average molecular weight of about 500 to about 5,000, a and b are independently 2 or 3, and x is 0 to 10, with an ethylenically unsaturated carboxylic acid or anhydride thereof, in a charge mole ratio of the ethylenically unsaturated carboxylic acid or anhydride thereof to the succinimide of formula I of about to about 1.05:1; and (b) reacting the succinimide product of step (a) with an acidic molybdenum compound. Also disclosed is a lubricating oil composition containing at least (a) a major amount of a base oil of lubricating viscosity and (b) a minor amount of the molybdated succinimide complex.
    Type: Application
    Filed: June 30, 2008
    Publication date: December 31, 2009
    Applicant: Chevron Oronite Company, LLC
    Inventors: Kenneth D. Nelson, Edward A. Chiverton
  • Patent number: 7585821
    Abstract: A modified lubricating oil detergent that is the reaction product of an oil soluble detergent comprising an alkali- or alkaline earth metal hydrocarbyl phenate, carboxylate or sulfonate and an ?, ?-unsaturated carbonyl compound; and lubricating oil compositions containing a combination of such a modified detergent and a nitrogen-containing dispersant.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: September 8, 2009
    Assignee: Infineum International Limited
    Inventors: Jacob Emert, Antonio Gutierrez
  • Publication number: 20090203559
    Abstract: A trunk piston or cross-head diesel engine having a centrifuge system including a sealing medium is lubricated with a lubricant which, for the cross-head engine, is a system lubricant and which contains 0.04 to 5 mass %, expressed as active ingredient, of a combination of one or more linked aromatic compounds and one or more nitrogen containing ashless disperants, in a mass:mass ratio in the range of 1:3 to 9:1.
    Type: Application
    Filed: February 8, 2008
    Publication date: August 13, 2009
    Inventors: Tushar Kanti Bera, James Christian Dodd, Jacob Emert, Alvaro Rincon-Barbado, Jeremy Roger Spencer
  • Patent number: 7534747
    Abstract: A soot reducing media that reduces the soot content in lubricating oil in an engine. Further a process employing a gel to decrease the amount of soot in the lubricating oil of an engine and/or decrease the emissions from an engine.
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: May 19, 2009
    Assignee: The Lubrizol Corporation
    Inventors: James D. Burrington, Herman F. George, John R. Martin, Ralph E. Kornbrekke
  • Publication number: 20080171678
    Abstract: A multi-functional composition for use as an additive for fuels and lubricants. The composition includes an amination product of a hydrocarbyl substituted succinic acylating agent and a mixture containing an aliphatic polyamine and an aromatic polyamine. The molar ratio of aliphatic polyamine to aromatic polyamine in the mixture ranges from about 10:0.1 to about 0.1:10. The amination product contains at least about 0.1 molar equivalent of the polyamine mixture to 1 molar equivalent of the hydrocarbyl substituted succinic acylating agent.
    Type: Application
    Filed: March 17, 2008
    Publication date: July 17, 2008
    Applicants: AFTON CHEMICAL CORPORATION
    Inventors: John T. Loper, Paul G. Griffin, David A. Hutchison, Robert T. Dittmeier
  • Patent number: 7361629
    Abstract: A multi-functional composition for use as an additive for fuels and lubricants. The composition includes an amination product of a hydrocarbyl substituted succinic acylating agent and a mixture containing an aliphatic polyamine and an aromatic polyamine. The molar ratio of aliphatic polyamine to aromatic polyamine in the mixture ranges from about 10:0.1 to about 0.1:10. The amination product contains at least about 0.1 molar equivalent of the polyamine mixture to 1 molar equivalent of the hydrocarbyl substituted succinic acylating agent.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: April 22, 2008
    Assignee: Afton Chemical Corporation
    Inventors: John T. Loper, Paul G. Griffin, David A. Hutchison, Robert T. Dittmeier
  • Patent number: 6906011
    Abstract: This invention is directed to a new low molecular weight copolymer (The PIB/UAR copolymer) that may be prepared by reacting a low molecular weight polyisobutene (PIB) having less than about 32 carbon atoms with an unsaturated acidic reagent in the presence of a free radical initiator. No chain transfer agent is required to prepare the low molecular weight PIB/UAR copolymer. The PIB/UAR copolymer may be useful as is, or as an intermediate for (1) polysuccinimides, (2) detergents or dispersants for lube oil or fuels, (3) pour point depressants and (4) surface sizing agents for paper. The PIB/UAR copolymer may be used by itself or as the ester, amide, imide or metal salt derivative of the PIB/UAR copolymer. The PIB/UAR copolymer may be liquid at ambient temperature.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: June 14, 2005
    Assignee: Chevron Oronite Company LLC
    Inventors: James J. Harrison, William R. Ruhe, Jr., Kenneth D. Nelson
  • Patent number: 6867171
    Abstract: This invention is directed to a new low molecular weight branched alkenyl succinic acid derivative that may be prepared by reacting a low molecular weight polyisobutene (PIB) having from about 8 to about 32 carbon atoms, and wherein at least about 50% of the olefinic bonds of the polyisobutene comprises methylvinylidene isomer plus tri-substituted isomer, with an unsaturated acidic reagent and method of making same, resulting in alkenyl succinic acid derivative isomers; and a low molecular weight branched alkenyl succinimide and method of making same.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: March 15, 2005
    Assignee: Chevron Oronitz Company LLC
    Inventors: James J. Harrison, Kenneth Nelson
  • Patent number: 6846782
    Abstract: This invention relates to a method of reducing intake valve deposits in a direct injection engine, the method comprising lubricating the engine with a lubricating oil composition comprising a base oil mixture, the base oil mixture comprising (i) a Group III, a Group IV oil, or a mixture thereof, in combination with (ii) a synthetic ester oil, the weight ratio of (i) to (ii) being from about 0.2:1 to about 6:1.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: January 25, 2005
    Assignee: The Lubrizol Corporation
    Inventor: Raymond M. Calder
  • Publication number: 20040180797
    Abstract: A process for the preparation of polyalkenylsuccinimide products, in particular polyisobutenylsuccinimide products, is proposed, in which a polyalkene is reacted with a maleic acid, maleic anhydride or a functional derivative thereof to give a polyalkenylsuccinic anhydride and the polyalkenylsuccinic anhydride is then reacted with an oligoamine or polyamine, the polyalkenylsuccinic anhydride either
    Type: Application
    Filed: November 14, 2003
    Publication date: September 16, 2004
    Inventors: Stephen Huffer, Peter Schwab, Klaus Fischer, Thomas Berg, Helmut Mach
  • Patent number: 6770605
    Abstract: A composition suitable for reducing sludge and degradation of elastomer seals in engines comprises an oil of lubrication viscosity and a minor amount of a sludge preventing/seal protecting nitrogen containing dispersant, which is a reaction product of a hydrocarbyl-substituted succinic acylating agent having a limited amount of low molecular weight substituent; and a polyamine or condensed polyamine containing less than 20 mole percent of polyamine components of 6 or fewer nitrogen atoms.
    Type: Grant
    Filed: September 11, 2000
    Date of Patent: August 3, 2004
    Assignee: The Lubrizol Corporation
    Inventors: Carl F. Stachew, Gordon D. Lamb, William D. Abraham, Mary Galic Raguz
  • Patent number: 6764982
    Abstract: This invention relates to a lubricating oil composition, comprising: (A) a base oil; and a phosphorus-containing compound represented by the formulae wherein in Formulae (B-I) and (B-II), R1, R2 and R3 are independently hydrogen or hydrocarbyl groups, and a, b and c are independently zero or 1; the lubricating oil composition being characterized by a sulfur content of about 0.01 to about 0.25% by weight.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: July 20, 2004
    Assignee: The Lubrizol Corporation
    Inventors: Ewa A. Bardasz, Virginia A. Carrick, William D. Abraham, Gordon D. Lamb
  • Patent number: 6743757
    Abstract: A dispersant that is a reaction product of a polyalkenyl-substituted mono- or dicarboxylic acid, anhydride or ester; and a polyamine, wherein the reaction product has from greater than about 1.3 to less than about 1.7 mono- or di-carboxylic acid producing moieties per polyalkenyl moiety, and the polyalkenyl moiety has a number average molecular weight of at least about 1800, and a molecular weight distribution (Mw/Mn) of from about 1.5 to about 2.0.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: June 1, 2004
    Assignee: Infineum International Ltd.
    Inventors: Ian A. W. Bell, Jacob Emert, Raymond Fellows, Antonio Gutierrez, Robert Robson
  • Patent number: 6727208
    Abstract: A lubricating oil composition comprising a major amount of an oil of lubricating viscosity and an additive system comprising (A) from about 0.1 to about 5% by weight of a detergent composition comprising at least two metal overbased compositions wherein said detergent composition consists essentially of (A-1) at least one alkali metal overbased detergent and (A-2) at least one calcium overbased detergent, wherein the ratio of total base number on a per 100 TBN and diluent-free basis contributed by the alkali metal detergent to the total base number contributed by the calcium detergent ranges from about 99.5-20 to about 0.5-80; (B) from about 1 to about 10% by weight of a succinimide dispersant; and (C) from about 0.1 to about 5 % by weight of a metal dihydrocarbyl dithiophosphate of the formula (I) wherein R1 and R2 are each, independently, hydrocarbyl groups containing from 3 to 13 carbon atoms, M is a metal and n is an integer equal to the valence of M.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: April 27, 2004
    Assignee: The Lubrizol Corporation
    Inventor: Melody A. Wilk
  • Publication number: 20030171225
    Abstract: A composition suitable for reducing sludge and degradation of elastomer seals in engines comprises an oil of lubrication viscosity and a minor amount of a sludge preventing/seal protecting nitrogen containing dispersant, which is a reaction product of a hydrocarbyl-substituted succinic acylating agent having a limited amount of low molecular weight substituent; and a polyamine or condensed polyamine containing less than 20 mole percent of polyamine components of 6 or fewer nitrogen atoms.
    Type: Application
    Filed: March 3, 2003
    Publication date: September 11, 2003
    Applicant: The Lubrizol Corporation
    Inventors: Carl F. Stachew, Gordon D. Lamb, William D. Abraham, Mary Galic Raguz
  • Publication number: 20030148898
    Abstract: A dispersant that is a reaction product of a polyalkenyl-substituted mono- or dicarboxylic acid, anhydride or ester; and a polyamine, wherein the reaction product has from greater than about 1.3 to less than about 1.7 mono- or di-carboxylic acid producing moieties per polyalkenyl moiety, and the polyalkenyl moiety has a number average molecular weight of at least about 1800, and a molecular weight distribution (Mw/Mn) of from about 1.5 to about 2.0.
    Type: Application
    Filed: December 6, 2001
    Publication date: August 7, 2003
    Inventors: Ian A. W. Bell, Jacob Emert, Raymond Fellows, Antonio Gutierrez, Robert Robson
  • Patent number: 6596672
    Abstract: A low sulfate ash lubricating oil composition comprising an oil of lubricating viscosity, 0.1 to 3.0% of a calcium overbased acidic material, 0.1 to 2.0% of a magnesium overbased acidic material, and at least 0.5% of a combination of an alkylene-coupled hindered phenol antioxidant and an antioxidant other than an alkylene-coupled hindered phenol antioxidant, is particularly useful for lubricating stationary gas engines.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: July 22, 2003
    Assignee: The Lubrizol Corporation
    Inventors: Virginia A. Carrick, Ewa A. Bardasz, David E. Ripple
  • Publication number: 20030134756
    Abstract: A low sulfate ash lubricating oil composition comprising an oil of lubricating viscosity, 0.1 to 3.0% of a calcium overbased acidic material, 0.1 to 2.0% of a magnesium overbased acidic material, and at least 0.5% of a combination of an alkylene-coupled hindered phenol antioxidant and an antioxidant other than an alkylene-coupled hindered phenol antioxidant, is particularly useful for lubricating stationary gas engines.
    Type: Application
    Filed: May 28, 2002
    Publication date: July 17, 2003
    Inventors: Virginia A. Carrick, Ewa A. Bardasz, David E. Ripple
  • Publication number: 20030130140
    Abstract: This invention is directed to a new low molecular weight copolymer (The PIB/UAR copolymer) that may be prepared by reacting a low molecular weight polyisobutene (PIB) having less than about 32 carbon atoms with an unsaturated acidic reagent in the presence of a free radical initiator. No chain transfer agent is required to prepare the low molecular weight PIB/UAR copolymer. The PIB/UAR copolymer may be useful as is, or as an intermediate for (1) polysuccinimides, (2) detergents or dispersants for lube oil or fuels, (3) pour point depressants and (4) surface sizing agents for paper. The PIB/UAR copolymer may be used by itself or as the ester, amide, imide or metal salt derivative of the PIB/UAR copolymer. The PIB/UAR copolymer may be liquid at ambient temperature.
    Type: Application
    Filed: November 9, 2001
    Publication date: July 10, 2003
    Inventors: James J. Harrison, William R. Ruhe, Kenneth D. Nelson
  • Patent number: 6588393
    Abstract: This invention relates to a low-sulfur consumable lubricating oil composition, comprising: a base oil; an acylated nitrogen-containing compound having a substituent of at least about 10 aliphatic carbon atoms; and a sulfur content of about 5 to about 250 ppm; said composition being characterized by the absence of an extreme-pressure additive comprised of metal and phosphorus.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: July 8, 2003
    Assignee: The Lubrizol Corporation
    Inventors: William Bricker Chamberlin, III, John Kent Pudelski
  • Publication number: 20030125218
    Abstract: A biodegradable lubricating oil composition especially useful as a gear oil employs a synthetic alcohol ester basestock formed from mono- and dipentaerythritol with certain mono- and dicarboxylic acids or dicarboxylic acid anhydrides and an effective amount of a polyoxyalkylene alcohol demulsifying agent, a combination of alkylated organic acid and ashless succinimide rust inhibitors and an ashless dithiocarbamate antiwear and extreme pressure agent.
    Type: Application
    Filed: October 8, 2002
    Publication date: July 3, 2003
    Inventors: Angeline Baird Cardis, Susan Ardito
  • Patent number: 6562765
    Abstract: An engine oil having a base oil and a friction reducing amount of an oil soluble sulfurized or unsulfurized oxymolybdenum complex prepared from reacting, in the presence of a polar promoter, an acidic molybdenum compound and a basic nitrogen compound and a low concentration of a sulfurized oxymolybdenum dialkyldithiocarbamate; employed together to provide at least 450 parts per million of molybdenum and less than 175 parts per million of molybdenum from the dialkyldithiocarbamate, both on the basis of the engine oil.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: May 13, 2003
    Assignee: Chevron Oronite Company LLC
    Inventor: Alexander B. Boffa
  • Publication number: 20030013620
    Abstract: A lubricating oil composition comprising a major amount of an oil of lubricating viscosity and an additive system comprising (A) from about 0.1 to about 5 % by weight of a detergent composition comprising at least two metal overbased compositions wherein said detergent composition consists essentially of (A-1) at least one alkali metal overbased detergent and (A-2) at least one calcium overbased detergent, wherein the ratio of total base number on a per 100 TBN and diluent-free basis contributed by the alkali metal detergent to the total base number contributed by the calcium detergent ranges from about 99.5-20 to about 0.5-80; (B) from about 1 to about 10 % by weight of a succinimide dispersant; and (C) from about 0.1 to about 5 % by weight of a metal dihydrocarbyl dithiophosphate of the formula (I) wherein R1 and R2 are each, independently, hydrocarbyl groups containing from 3 to 13 carbon atoms, M is a metal and n is an integer equal to the valence of M.
    Type: Application
    Filed: May 23, 2002
    Publication date: January 16, 2003
    Inventor: Melody A. Wilk
  • Patent number: 6498129
    Abstract: A two-cycle oil is disclosed comprising a polyisobutylene amine, a dispersant, a polybutene polymer, solvent and lubricating oil which exhibits improved performance.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: December 24, 2002
    Assignee: Exxon Chemical Patents INC.
    Inventors: Emil J. Meny, Rolfe J. Hartley
  • Publication number: 20020103088
    Abstract: Provided are novel succinimide compounds obtained by reacting a polyamine having a carbon/nitrogen weight ratio of from 0.85 to 1.25 with a succinic acid compound in a molar ratio to the polyamine of up to 1.40; a process for producing them; a lubricating oil additive containing the compound; and a lubricating oil composition for internal combustion engines which comprises a lube base oil, (a) at least one compound selected from the group consisting of overbased sulfonates, phenates and salicylates with alkaline earth metals, and (b) the succinimide compound, and which has a total base number of from 30 to 150 mg-KOH/g. The composition is for use in internal combustion engines that may discharge a large amount of sulfur oxides (SOx), having the advantage of good corrosion resistance against SOx to be discharged in large quantities.
    Type: Application
    Filed: February 11, 2002
    Publication date: August 1, 2002
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Tadashi Katafuchi, Takeshige Nakano
  • Publication number: 20020072478
    Abstract: Lubricant compositions comprises a lubricant base oil and one or more compounds resulting the modification of a succinimide represented by formula (1) or (2) 1
    Type: Application
    Filed: September 5, 2001
    Publication date: June 13, 2002
    Applicant: Nippon Mitsubishi Oil Corporation
    Inventors: Noboru Ishida, Shinichi Shirahama, Eitaro Morita, Kenichi Komiya, Naozumi Arimoto
  • Patent number: 6268316
    Abstract: In diesel engines, soot is produced by combustion and enters into the engine oil, preventing the engine lubricant from fully exercising its lubricity. The present invention provides a lubricating composition comprising a lubricating basestock, an organic molybdenum compound (A) and succinimide (B) having 0.01 or less of an IR spectrum absorbance peak intensity ratio &agr;/&bgr;, wherein &agr; represents an absorbance peak intensity at 1,550±10 cm−1 and &bgr; represents an absorbance peak intensity at 1,700±10 cm−1. Preferably, the organic molybdenum compound is the compound represented by the following formula (1) or formula (2): (wherein R1 to R8 each independently represent a hydrocarbon, and X1 to X8 each independently represent a sulfur atom or an oxygen atom), or a reaction product of an amine and a molybdenum compound having at least one pentavalent or hexavalent molybdenum atom.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: July 31, 2001
    Assignee: Asahi Denka Kogyo K.K.
    Inventors: Noriyoshi Tanaka, Aritoshi Fukushima, Kazuhisa Morita, Yoko Saito, Atsuo Miyashita
  • Patent number: 6232275
    Abstract: There is disclosed a lubricating oil composition for automatic transmissions which comprises a base oil comprising at least one oil selected from the group consisting of a mineral oil and a synthetic oil each having a specific kinematic viscosity and a % CA; (A) a non-boron based succinic acid imide (e.g. polybutenylsuccinic acid imide) and a boron based succinic acid imide each in an amount of 0.1 to 5% by weight based on the whole composition; (B) a condensation product of a branched chain fatty acid having 8 to 30 carbon atoms (e.g. isostearic acid) and an amine (e.g. tetraethylene-pentamine) in an amount of 0.05 to 2% by weight based on the same; and (C) a dialkyl hydrogenphosphite (e.g. dioleyl hydrogenphosphite) in an amount of 0.1 to 1% by weight based on the same, and optionally at least one member selected from viscosity index improvers, antioxidants, metal deactivators, defoaming agents, detergents, extreme pressure agents and rust preventives.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: May 15, 2001
    Assignees: Idemitsu Kosan Co., Ltd., Nissan Motor Co., Ltd.
    Inventors: Toshihiko Ichihashi, Masayuki Kato, Takao Ishikawa, Yasuhiro Murakami, Kazuo Umesato, Rika Yauchihara
  • Patent number: 6117825
    Abstract: A lubricating oil composition comprising:(a) a major amount of an oil of lubricating viscosity; and(b) a minor dispersant amount of a synergistic combination of an antioxidant-dispersant additive and a dispersant additive, said combination comprising:(i) a polyisobutylene succinimide; and(ii) an ethylene-propylene succinimide.
    Type: Grant
    Filed: May 7, 1992
    Date of Patent: September 12, 2000
    Assignee: Ethyl Corporation
    Inventors: Christopher Soundang Liu, Cyril Andrew Migdal, Norris Roland Crawford, Roy Isamu Yamamota
  • Patent number: 6066601
    Abstract: A coating additive composition containing the combination of a) at least one non-crosslinked product made by the reaction of an amine and a carboxylic acid, the product containing at least two hydrocarbyl groups each having about 12 to about 100 carbon atoms; and (ii) at least one fluoropolymer. The additive composition is useful as a nonflatting slip-enhancing agent in both in solvent-based and powder coatings. The cured coatings exhibit lower coefficient of friction and substantial gloss retention.
    Type: Grant
    Filed: October 6, 1998
    Date of Patent: May 23, 2000
    Assignee: The Lubrizol Corporation
    Inventor: Thomas F. Steckel