The Heterocyclic Compound Reactant Contains A Carboxylic Acid Anhydride Ring Patents (Class 508/232)
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Patent number: 11505761Abstract: Embodiments of the present disclosure generally relate to diluent oils for viscosity modifiers and additive packages. Embodiments of the present disclosure also generally relate to lubricating oil compositions that include viscosity modifier concentrates and lubricating oil compositions that include additive package concentrates. Improved diluent oils capable of conveniently and cost effectively improving overall lubricant performance are provided.Type: GrantFiled: September 14, 2021Date of Patent: November 22, 2022Assignee: Exxon Mobil Technology and Engineering CompanyInventors: Beatrice M. Gooding, Akhilesh Duggal, Toufic Aridi, Samantha Novoa, Lauren F. McKibben, Charles L. Baker, Jr.
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Patent number: 10822569Abstract: The present disclosure relates to viscosity index modifiers that have dispersant properties and lubricating oil compositions comprising said viscosity index modifiers. The viscosity index modifier is the reaction product of an acylated olefin copolymer, a polyamine, and a dicarboxylic acid or anhydride thereof that can react with a free primary amine of the polyamine to form a ring moiety. The disclosure also relates to the use of lubricant compositions comprising the viscosity index improvers of the disclosure for improving the soot or sludge handling characteristics of an engine lubricant composition, while minimizing the deterioration of engine seals.Type: GrantFiled: February 15, 2018Date of Patent: November 3, 2020Assignee: Afton Chemical CorporationInventors: Sheng Jiang, Joseph S. Bradley
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Patent number: 10472585Abstract: A water-based lubricant for plastic working of a metallic material is obtained by adding to a water-based medium: (A) a polymer and/or a salt thereof containing a carboxylic acid or a derivative thereof as a constituent monomer; (B) an oxoacid of tungsten, of silicon, or of phosphorus, or a condensate thereof, and/or a salt thereof; (C) a hydroxide of an alkali metal; and (D) a lubricating component (D), and the solid content weight ratio (A)/[(A)+(B)+(C)+(D)] is 0.05 to 0.4.Type: GrantFiled: June 27, 2014Date of Patent: November 12, 2019Assignee: NIHON PARKERIZING CO., LTD.Inventors: Masaru Mochizuki, Manabu Kumagai, Yuta Kobayashi
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Patent number: 10227544Abstract: Automotive transmission fluid compositions are provided having improved power transmission properties through the presence therein of certain defined additives, which increase the fuel efficiency of the vehicle during operation. The invention further provides a process for the manufacture of such transmission fluid compositions, a method of improving the energy efficiency of a transmission, and an additive concentrate for a transmission fluid.Type: GrantFiled: August 15, 2013Date of Patent: March 12, 2019Assignee: INFINEUM INTERNATIONAL LIMITEDInventors: Hahn Soo Kim, Joseph R. Noles, Jr., Raymond F. Watts
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Patent number: 10179886Abstract: Lubricant compositions including an additive composition and methods for its use in engines that produce soot. The lubricant composition contains a base oil and an additive composition having (a) at least 0.05 percent by weight of a first dispersant that is a reaction product of A) a hydrocarbyl-dicarboxylic acid or anhydride, and B) at least one polyamine; and (b) at least 0.05 percent by weight, both based on a total weight of the lubricant composition, of a second dispersant that is a reaction product of A?) a hydrocarbyl-dicarboxylic acid or anhydride, and B?) at least one polyamine, wherein the reaction product is post-treated with C) an aromatic carboxylic acid, an aromatic polycarboxylic acid, or an aromatic anhydride wherein all carboxylic acid or anhydride groups are attached directly to an aromatic ring, and/or D) a non-aromatic dicarboxylic acid or anhydride having a number average molecular weight of less than about 500.Type: GrantFiled: May 17, 2016Date of Patent: January 15, 2019Assignee: AFTON CHEMICAL CORPORATIONInventors: Diane Campbell, Jason Lagona
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Patent number: 10160935Abstract: Products selected from the group consisting of: hair conditioners, fabric softeners, skin moisturizers, shampoos, paper product additives, cosmetics, personal cleansing products, shave preparation products, detergents, non-woven additives, oral care products, and assembled products comprising treated paper or non-woven components, and comprising a polyisobutylene composition.Type: GrantFiled: January 19, 2016Date of Patent: December 25, 2018Assignee: The Procter & Gamble CompanyInventors: Beth Ann Schubert, Luke Andrew Zannoni, Robert Joseph McChain
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Patent number: 9719043Abstract: A lubricant composition of (a) an oil of lubricating viscosity; (b) a dispersant comprising the condensation product of a carboxylic functionalized polymer with an aromatic amine having at least 3 aromatic rings and at least one primary or secondary amino group; and (c) an overbased metal detergent comprising an oil-soluble neutral metal salt component and a metal carbonate component, provides good seal and corrosion performance. Desirably, the total amount of neutral metal salt component in the lubricant composition is at least about 0.75 percent by weight and the sulfated ash level of the lubricant composition is less than about 1.1 percent.Type: GrantFiled: July 19, 2016Date of Patent: August 1, 2017Assignee: The Lubrizol CorporationInventors: Matthew D. Gieselman, Mary Galic Raguz, John G. Loop
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Patent number: 9347013Abstract: A grease composition is disclosed, having from 75 to 85 weight percent of a lubricating base oil, from 15 to 25 weight percent of a thickener component including one or more of (i) one or more natural oil derivatives comprising octadecanedioic acid dimethyl esters, (ii) one or more carboxylic acids and/or derivatives thereof, comprising 12-hydroxystearic acid, and (iii) one or more of a metal base compound comprising lithium hydroxide, and from 1 to 15 weight percent of one or more optional additives. Processes for making grease compositions are also disclosed.Type: GrantFiled: October 19, 2015Date of Patent: May 24, 2016Assignee: Elevance Renewable Sciences, Inc.Inventor: Paul A. Bertin
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Patent number: 9243140Abstract: Impact modified compositions having good impact performance can be made from a thermoplastic (e.g., a polyolefin such as polypropylene or HDPE) and a multi-block ethylene/?-olefin interpolymer. The compositions are easily molded and often have particular utility in making, for example, automotive facia, parts and other household articles.Type: GrantFiled: September 11, 2012Date of Patent: January 26, 2016Assignee: Dow Global Technologies LLCInventors: Kim L. Walton, Gary R. Marchand, Shrikant Dhodapkar, Mridula Kapur, Shaofu Wu
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Patent number: 8728995Abstract: A polyalkenyl succinic anhydride is prepared with low amounts of resinous or chlorinated byproducts in a two-step process whereby a polyalkene is first reacted with an unsaturated organic acid in a thermal ene reaction, followed with exposure to a gaseous halogen in presence of an additional amount of the unsaturated organic acidic reagent. The foregoing process produces a polyisobutenyl succinic anhydride having a high ratio of succinic anhydride functional groups to polyisobutenyl backbone groups. Such a polyisobutenyl succinic anhydride is particular suitable for the production of oil-soluble hydrocarbyl succinimides that have good dispersant properties when added to lubricating oil compositions.Type: GrantFiled: January 19, 2011Date of Patent: May 20, 2014Assignee: Afton Chemical CorporationInventors: Chente Huang, John T. Loper
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Patent number: 8697617Abstract: Reaction products of maleic and/or succinic acids or anhydrides and primary aliphatic amines are disclosed as effective in reducing the static friction in power transmission fluids.Type: GrantFiled: December 4, 2008Date of Patent: April 15, 2014Assignee: Infineum International LimitedInventors: Raymond F. Watts, Keith R. Gorda
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Patent number: 8598099Abstract: The present invention relates to a lubricating composition containing a corrosion inhibitor compound and a mixture of two or more dispersants, wherein 0 mole % to less than 50 mole % of the second dispersant molecules contain a carbocyclic ring. The invention further provides a method for lubricating a mechanical device using the lubricating composition.Type: GrantFiled: February 6, 2012Date of Patent: December 3, 2013Assignee: The Lubrizol CorporationInventors: Craig D. Tipton, James L. Sumiejski, William D. Abraham
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Patent number: 8536103Abstract: A liquid extreme pressure agent for use in lubricating compositions where the lubricating compositions comprise an oil of lubricating viscosity and the reaction product of: (a) a thiazole; (b) a composition comprising a carboxylic acid, a phosphorus containing acid or salt, or combinations thereof; and (c) an amine containing one or more branched hydrocarbyl groups. The invention also provides an additive composition comprising the reaction product described above and a process for making lubricating compositions, including greases, from the reaction product.Type: GrantFiled: February 25, 2009Date of Patent: September 17, 2013Inventors: Richard A. Denis, Matthew R. Sivik, William C. Ward, Jr.
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Patent number: 8263535Abstract: 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 (a) first being reacted with an alcohol or phenol and, without isolation of the reaction product, then with the oligoamine or polyamine, or (b) the polyalkenylsuccinic anhydride being reacted with the oligoamine or polyamine in the presence of an alcohol or phenol and (c) if desired, the alcohol or the phenol then being removed. Novel polyalkenylsuccinimide products, in particular polyisobutenylsuccinimide products, and fuel additives are also proposed.Type: GrantFiled: May 14, 2002Date of Patent: September 11, 2012Assignee: BASF AktiengesellschaftInventors: Stephan Hueffer, Peter Schwab, Klaus Fischer, Thomas Berg, Helmut Mach
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Patent number: 8222191Abstract: 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: GrantFiled: November 18, 2010Date of Patent: July 17, 2012Assignee: The Lubrizol CorporationInventor: Allan Barber
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Patent number: 8202825Abstract: There are provided a solid lubricant having an island-and-sea structure, which, with the sea phase strengthened, remains free of troubles such as chipping even in use under high load conditions, and a sliding member having the solid lubricant embedded therein. The solid lubricant comprises 1 to 10% by volume of a polyethylene resin, 20 to 60% by volume of a hydrocarbon-based wax, 10 to 60% by volume of melamine cyanurate, 5 to 15% by volume of a polyamide resin, and 2 to 10% by volume of a modified polyethylene resin. The sliding member has the solid lubricant embedded in pores or grooves formed in a sliding surface of the sliding member body.Type: GrantFiled: September 4, 2007Date of Patent: June 19, 2012Assignee: Oiles CorporationInventor: Yoshiaki Yamamoto
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Patent number: 8138130Abstract: 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: GrantFiled: March 31, 2005Date of Patent: March 20, 2012Assignee: Chevron Oronite Company LLCInventors: Kenneth Dale Nelson, Edward A. Chiverton
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Patent number: 8048831Abstract: A novel crankcase dispersant reaction product having fused therein an antioxidant moiety whereby the dispersant reaction product can function as an antioxidant while retaining at least two structural domains, one being a polar domain for association with sludge and a hydrocarbyl domain for oil solubility, so that the dispersant can function as a chemical agent to suspend sludge and prevent agglomeration of sludge precursors and soot so the latter can be readily removed from the system, such as by filtering, instead of being deleteriously deposited on internal engine components, as well as lubricant compositions incorporating such novel dispersant and, for instance, engines lubricated with such lubricant compositions.Type: GrantFiled: August 15, 2008Date of Patent: November 1, 2011Assignee: Afton Chemical CorporationInventor: John T. Loper
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Patent number: 7981847Abstract: A graft copolymer containing one or more ethylenically-unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing graftable monomers grafted to a polyolefin is disclosed. Novel monomers, methods of making such monomers, and graft copolymers comprising such monomers are based on reacting an acylating agent with an amine to form a reaction product. The reaction product may include more than one chemical compound formed from the combination of the acylating agent and the amine. The monomer is the graftable, ethylenically unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing compound(s) of the reaction product. The monomer may, but need not, be recovered from the product mixture. The preferred monomer is the reaction product of maleic anhydride and 4-aminodiphenylamine. Also described is a method of making a dispersant viscosity index improver. The monomer of the present invention may be grafted to a polyolefin in solutions or melts.Type: GrantFiled: February 11, 2008Date of Patent: July 19, 2011Assignee: Castrol LimitedInventors: Irwin L. Goldblatt, Shean-Jer Chen, Manish R. Patel, Stephen T. McKenna
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Patent number: 7960320Abstract: Reaction of a carboxylic acid-containing polymer with certain aromatic amines results in dispersant viscosity modifiers with improved soot handling performance in heavy-duty diesel engines, compared with reaction with non-aromatic amines.Type: GrantFiled: August 18, 2010Date of Patent: June 14, 2011Assignee: The Lubrizol CorporationInventors: Michael J. Covitch, John K. Pudelski, Christopher Friend, Matt D. Gieselman, Renee A. Eveland, Mary Galic Raguz, Barton J. Schober
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Patent number: 7951758Abstract: The hydrolytic stability of magnesium overbased products is significantly improved by the addition or inclusion of a mixture or reaction product of an alkylphenol resin with a mixture of an alkenyl succinic anhydride and the acid thereof, and an alkyl amine. These magnesium overbased products are useful additives to fuel oils to improve their corrosion-causing tendencies. In one non-limiting embodiment, the alkylphenol resin is nonylphenol resin and the succinic anhydride is a partially hydrolyzed succinic anhydride having from 14 to 26 carbon atoms, along with the acid thereof. The mixtures and reaction products also serve as asphaltene inhibitors in the fuel oils.Type: GrantFiled: June 17, 2008Date of Patent: May 31, 2011Assignee: Baker Hughes IncorporatedInventors: Corina L. Sandu, Lawrence N. Kremer, Christine Ann Blundell, Lee Michael Howard, Joseph L. Stark
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Patent number: 7897696Abstract: A polyalkenyl succinic anhydride is prepared with low amounts of resinous or chlorinated byproducts in a two-step process whereby a polyalkene is first reacted with an unsaturated organic acid in a thermal ene reaction, followed with exposure to a gaseous halogen in presence of an additional amount of the unsaturated organic acidic reagent. The foregoing process produces a polyisobutenyl succinic anhydride having a high ratio of succinic anhydride functional groups to polyisobutenyl backbone groups. Such a polyisobutenyl succinic anhydride is particular suitable for the production of oil-soluble hydrocarbyl succinimides that have good dispersant properties when added to lubricating oil compositions.Type: GrantFiled: February 1, 2007Date of Patent: March 1, 2011Assignee: Afton Chemical CorporationInventors: Chente Huang, John T. Loper
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Patent number: 7884058Abstract: A stable colloidal suspension comprising: (a) a dispersed phase comprising a major amount of one or more dispersed hydrated polymeric compounds selected from the group consisting of polymolybdates, polytungstates, polyvanadates, polyniobates, polytantalates, polyuranates, and mixtures thereof, and, (b) an oil phase comprising one or more dispersing agents and a diluent oil. Processes for preparing the stable colloidal suspensions and their use in lubricating oil compositions are also provided.Type: GrantFiled: September 30, 2003Date of Patent: February 8, 2011Assignee: Chevron Oronite Company LLCInventors: Kenneth D. Nelson, James J. Harrison
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Patent number: 7863228Abstract: 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: GrantFiled: March 17, 2008Date of Patent: January 4, 2011Assignee: Afton Chemical CorporationInventors: John T. Loper, Paul G. Griffin, David A. Hutchison, Robert T. Dittmeier
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Patent number: 7833954Abstract: The present application is directed to a lubricant composition comprising a major amount of a base oil; and a lead corrosion inhibiting amount of a reaction product of a hydrocarbyl carbonyl compound and an amine compound chosen from guanidines, ureas and thioureas; with the proviso that the lubricant is essentially free of zinc dialkyldithiophosphate wear inhibitors, and substantially free of chlorinated paraffins and calcium mannich phenate.Type: GrantFiled: February 11, 2008Date of Patent: November 16, 2010Assignee: Afton Chemical CorporationInventor: David A. Hutchison
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Patent number: 7585821Abstract: 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: GrantFiled: August 6, 2002Date of Patent: September 8, 2009Assignee: Infineum International LimitedInventors: Jacob Emert, Antonio Gutierrez
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Patent number: 7371713Abstract: A graft copolymer containing one or more ethylenically-unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing graftable monomers grafted to a polyolefin is disclosed. Novel monomers, methods of making such monomers, and graft copolymers comprising such monomers are based on reacting an acylating agent with an amine to form a reaction product. The reaction product may include more than one chemical compound formed from the combination of the acylating agent and the amine. The monomer is the graftable, ethylenically unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing compound(s) of the reaction product. The monomer may, but need not, be recovered from the product mixture. The preferred monomer is the reaction product of maleic anhydride and 4-aminodiphenylamine. Also described is a method of making a dispersant viscosity index improver. The monomer of the present invention may be grafted to a polyolefin in solutions or melts.Type: GrantFiled: May 23, 2003Date of Patent: May 13, 2008Assignee: Castrol LimitedInventors: Irwin L. Goldblatt, Shean-Jer Chen, Manish R. Patel, Stephen T. McKenna
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Patent number: 7361629Abstract: 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: GrantFiled: March 10, 2004Date of Patent: April 22, 2008Assignee: Afton Chemical CorporationInventors: John T. Loper, Paul G. Griffin, David A. Hutchison, Robert T. Dittmeier
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Patent number: 7214649Abstract: A dispersant composition for use as a lubricant additive. The dispersant composition includes a reaction product of an acrylamide and a compound having at least one primary or secondary amine group and being selected from the group consisting of hydrocarbyl-substituted succinimides, hydrocarbyl-substituted amines, and Mannich base adducts derived from hydrocarbyl-substituted phenols condensed with aldehydes and amines. The hydrocarbyl substituent has a number average molecular weight ranging from about 500 to about 5000 as determined by gel permeation chromatography.Type: GrantFiled: December 31, 2003Date of Patent: May 8, 2007Assignee: Afton Chemical CorporationInventors: John T. Loper, Roger M. Sheets
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Patent number: 7137401Abstract: Non-polymeric drag reducing agents in the form of maleated fatty acids and the esters thereof and the organic, inorganic or amine salts thereof are described herein. These additives are useful to reduce drag in hydrocarbon fluids and multi-phase fluids of hydrocarbon(s) and water. No injection probes or other special equipment is expected to be required to introduce the drag reducing agent into the liquid stream, nor is grinding (cryogenic or otherwise) of the additive necessary to form a suitable drag reducing agent. The drag reducing additives of the invention are not subject to shear degradation and do not cause undesirable changes in the emulsion or fluid quality of the fluid being treated, or undesirable foaming.Type: GrantFiled: August 30, 2001Date of Patent: November 21, 2006Assignee: Baker Hughes IncorporatedInventors: Vladimir Jovancicevic, Young Soo Ahn
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Patent number: 7049273Abstract: This invention relates to a novel multi-functional fuel and lubricant additive that provides dispersancy properties as well as viscosity index improver credit and, improved fuel economy. The invention further relates to concentrates, and to fuel and lubricating oil compositions containing said additive or concentrates. Finally, the invention provides methods for improving fuel economy, improving dispersancy, and for preparing the hybridized, acylated olefin copolymer useful as an oil additive.Type: GrantFiled: July 17, 2002Date of Patent: May 23, 2006Assignee: Afton Chemical Intangibles LLCInventors: Carl K. Esche, Jr., Charles Thomas West
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Patent number: 7034079Abstract: A process for preparing a radial polymer comprising at least 3 polymeric arms and a central core comprising a polymerized di- or polyfunctional monomer, said process comprising the steps, (a) polymerizing at an elevated temperature, a charge comprising at least one free radical-polymerizable monomer to prepare a stabilized active polymer block (A) using a free radical polymerization process, wherein a stable free radical agent is employed during the polymerization, thereby preserving the stabilized active polymerization site at the terminus of the polymer; optionally (b) adding at least one additional free radical-polymerizable monomer, at least one of which is different from the monomers making up the first charge of monomers, to the stabilized active polymer block (A); and further reacting the mixture using a free radical process to effect copolymerization of said monomers, thereby preparing an A-B block copolymer having a stabilized active polymerization site at the terminus of the polymer; then (c) addType: GrantFiled: March 19, 2002Date of Patent: April 25, 2006Assignee: The Lubrizol CorporationInventors: Daniel C. Visger, Richard M. Lange
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Patent number: 6906011Abstract: 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: GrantFiled: November 9, 2001Date of Patent: June 14, 2005Assignee: Chevron Oronite Company LLCInventors: James J. Harrison, William R. Ruhe, Jr., Kenneth D. Nelson
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Patent number: 6869919Abstract: Soot induced kinematic viscosity increase of lubricating oil compositions for diesel engines equipped with EGR systems can be ameliorated by selection of viscosity modifier, lubricating oil flow improvers, detergents and/or dispersants.Type: GrantFiled: September 10, 2002Date of Patent: March 22, 2005Assignee: Infineum International Ltd.Inventors: Andrew J. D. Ritchie, Jai G. Bansal, Jacob Emert, Glen P. Fetterman, Antonio Gutierrez, Matthew D. Irving, Christopher J. Locke, Michael T. Minotti
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Publication number: 20040198613Abstract: A lubricating oil composition containing in combination an acylating agent substituted with a polymer of an alkene with 6 to 40 carbon atoms and an acylating agent substituted with polyisobutylene provides improved viscometric properties for dispersants used in internal combustion engines.Type: ApplicationFiled: April 4, 2003Publication date: October 7, 2004Applicant: The Lubrizol CorporationInventors: Renee A. Eveland, Jeffry G. Dietz, Douglas M. Barr, R. Ian Wilby, John K. Pudelski
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Publication number: 20040180797Abstract: 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 eitherType: ApplicationFiled: November 14, 2003Publication date: September 16, 2004Inventors: Stephen Huffer, Peter Schwab, Klaus Fischer, Thomas Berg, Helmut Mach
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Patent number: 6743757Abstract: 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: GrantFiled: December 6, 2001Date of Patent: June 1, 2004Assignee: Infineum International Ltd.Inventors: Ian A. W. Bell, Jacob Emert, Raymond Fellows, Antonio Gutierrez, Robert Robson
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Publication number: 20040048753Abstract: Soot induced kinematic viscosity increase of lubricating oil compositions for diesel engines equipped with EGR systems can be ameliorated by selection of viscosity modifier, lubricating oil flow improvers, detergents and/or dispersants.Type: ApplicationFiled: September 10, 2002Publication date: March 11, 2004Inventors: Andrew J.D. Ritchie, Jai G. Bansal, Jacob Emert, Glen P. Fetterman, Antonio Gutierrez, Matthew D. Irving, Christopher J. Locke, Michael T. Minotti
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Publication number: 20040043909Abstract: A graft copolymer containing one or more ethylenically-unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing graftable monomers grafted to a polyolefin is disclosed. Novel monomers, methods of making such monomers, and graft copolymers comprising such monomers are based on reacting an acylating agent with an amine to form a reaction product. The reaction product may include more than one chemical compound formed from the combination of the acylating agent and the amine. The monomer is the graftable, ethylenically unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing compound(s) of the reaction product. The monomer may, but need not, be recovered from the product mixture. The preferred monomer is the reaction product of maleic anhydride and 4-aminodiphenylamine. Also described is a method of making a dispersant viscosity index improver. The monomer of the present invention may be grafted to a polyolefin in solutions or melts.Type: ApplicationFiled: May 23, 2003Publication date: March 4, 2004Inventors: Irwin L. Goldblatt, Shean-Jer Chen, Manish R. Patel, Stephen T. McKenna
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Patent number: 6696393Abstract: Disclosed are methods and lubricant compositions for reducing wear in internal combustion engines lubricated with a low phosphorus content lubricating oil. The lubricant compositions of this invention comprise a synergistic combination of a complex of a molybdenum/nitrogen containing compound and at least one phosphorus-containing compound wherein the total phosphorus employed in the composition is no more than about 0.06 weight percent based on the total weight of the composition.Type: GrantFiled: August 1, 2002Date of Patent: February 24, 2004Assignee: Chevron Oronite Company LLCInventor: Alexander B. Boffa
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Publication number: 20040014612Abstract: This invention relates to a novel multi-functional fuel and lubricant additive that provides dispersancy properties as well as viscosity index improver credit and, improved fuel economy. The invention further relates to concentrates, and to fuel and lubricating oil compositions containing said additive or concentrates. Finally, the invention provides methods for improving fuel economy, improving dispersancy, and for preparing the hybridized, acylated olefin copolymer useful as an oil additive.Type: ApplicationFiled: July 17, 2002Publication date: January 22, 2004Inventors: Carl K. Esche, Charles Thomas West
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Patent number: 6638897Abstract: The lubricating oil of the present invention exhibits an excellent effect of agglomerating solid impurity particles it contains to a sufficiently large size as to be captured and removed by an oil filter.Type: GrantFiled: July 9, 1999Date of Patent: October 28, 2003Assignee: TonenGeneral Sekiyu K.K.Inventors: Satoshi Ogano, Nobuchika Kawagoishi, Makota Yoneda, Toshiaki Kuribayashi
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Publication number: 20030130140Abstract: 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: ApplicationFiled: November 9, 2001Publication date: July 10, 2003Inventors: James J. Harrison, William R. Ruhe, Kenneth D. Nelson
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Patent number: 6544935Abstract: A nitrogen-containing ester derived from a carboxy-containing interpolymer having a reduced specific viscosity (RSV) of from about 0.Type: GrantFiled: January 9, 2002Date of Patent: April 8, 2003Assignee: The Lubrizol CorporationInventors: Daniel M. Vargo, Craig D. Tipton, Richard M. Lange
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Patent number: 6492306Abstract: A composition comprising a hydrocarbon polymer having attached thereto pendant groups Aa and Bb wherein each A is independently selected from members of the group consisting of: groups of the formula and each B is independently selected from members of the group of formula: wherein each X is independently O, S, or NRb, and each Z is independently a group of the formula Ra is an ethylene group, a propylene group, which groups optionally have hydrocarbyl or hydroxyhydrocarbyl substituents, or wherein J is H, SH, NH2, or OH, and tautomers thereof; a is 0 or a number ranging from 1 to about 50, and b is a number ranging from 1 to about 30; wherein each of the groups is defined in greater detail herein.Type: GrantFiled: March 23, 2001Date of Patent: December 10, 2002Assignee: The Lubrizol CorporationInventors: Matthew R. Sivik, Richard M. Lange, Daniel M. Vargo, Paul E. Adams
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Patent number: 6486101Abstract: A composition comprising a hydrocarbon polymer having {overscore (M)}n ranging from 20,000 to about 500,000, when the polymer is not a star polymer, and up to about GPC peak molecular weight of 4,000,000 when the polymer is a star polymer having attached thereto pendant groups Aa and Bb wherein each A is independently a member of the group of formula —Q—Kk wherein each Q is independently an aliphatic or aromatic hydrocarbon group, each K is independently a member selected from the group consisting of amide groups, nitrile groups, ester groups and carboxylic acid groups, and each k is independently a number ranging from 1 to about 3, and when k≧2, groups —K on adjacent carbon atoms, taken together, may constitute a succinimide group, and a is 0 or a number ranging from 1 to about 50; and each B is independently a member of the group of formula: wherein each X is independently O, S, or NRb, each Rb is independently H, NH2, hydrocarbyl, hydroxyhydrocarbyl, or aminohydrocarbType: GrantFiled: April 30, 2001Date of Patent: November 26, 2002Assignee: The Lubrizol CorporationInventors: Carmen V. Luciani, Richard M. Lange, Daniel M. Vargo
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Publication number: 20020151442Abstract: This invention relates to a lubricating oil composition, comprising: (A) a base oil; and a phosphorus-containing compound represented by the formulae 1Type: ApplicationFiled: January 31, 2002Publication date: October 17, 2002Applicant: The Lubrizol CorporationInventors: Ewa A. Bardasz, Virginia A. Carrick, William D. Abraham, Gordon D. Lamb
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Patent number: 6355603Abstract: Thermal reaction products of maleic anhydride and oligoalkenes are obtainable by oligomerization of linear C8- to C12-1-alkenes, preferably in the presence of a titanium, zirconium or hafnium metallocene catalyst and of an activator based on organoaluminum, organoboron or carbocationic compounds and have a vinylidene double bond content of more than 30% and have a number average molecular weight from 1000 to 20,000. Derivatives thereof with amines or alcohols are used as fuel additives and lubricant additives.Type: GrantFiled: August 29, 2000Date of Patent: March 12, 2002Assignee: BASF AktiengesellschaftInventors: Hans Peter Rath, Helmut Mach
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Publication number: 20010053750Abstract: The lubricating oil of the present invention exhibits an excellent effect of agglomerating solid impurity particles it contains to a sufficiently large size as to be captured and removed by an oil filter.Type: ApplicationFiled: July 9, 1999Publication date: December 20, 2001Inventors: SATOHI OGANO, NOBUCHIKA KAWAGOISHI, MAKOTO YONEDA, TOSHIAKI KURIBAYASHI
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Publication number: 20010044388Abstract: A composition comprising a hydrocarbon polymer having attached thereto pendant groups Aa and Bb wherein each A is independently selected from members of the group consisting of:Type: ApplicationFiled: March 23, 2001Publication date: November 22, 2001Applicant: The Lubrizol CorporationInventors: Matthew R. Sivik, Richard M. Lange, Daniel M. Vargo, Paul E. Adams