Overbased Or Carbonated (e.g., Overbased Sulfurized Phenates, Etc.) Patents (Class 508/574)
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Patent number: 10336954Abstract: Antifoulant compositions and methods are used for inhibiting fouling on structural parts of a system exposed to a fluid hydrocarbon or petrochemical stream. The antifoulant compositions may comprise at least one polyalkylene anhydride ester (“PAAE”) dispersant. Other antifoulant compositions may comprise an alkylphenol sulfide (“APS”).Type: GrantFiled: January 29, 2014Date of Patent: July 2, 2019Assignee: BL TECHNOLOGIES, INC.Inventors: Alagarsamy Subbiah, Nimeshkumar Kantilal Patel, Bryan C. Crom, Ali Fadhel, Anthony Fields, Romit Ghosh, Andre C. G. Vanhove
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Patent number: 9745326Abstract: A bridged alkaline earth metal alkylphenate having reduced monomeric alkylphenol is prepared by reacting (a) a 4-alkylphenol, unsubstituted at the ortho positions, (b) an alkaline earth metal oxide or hydroxide, (c) a bridging agent comprising sulfur or a carbonyl compound of 1 to about 6, or to 4 or to 2, carbon atoms, and (d) a 2,6-dialkylphenol. The amount of the 2,6-dialkylphenol is 0.05 to 3 moles per 1 mole of the 4-alkylphenol; if there is a molar excess of the 2,6-dialkylphenol, then the excess is added after initial reaction.Type: GrantFiled: February 7, 2014Date of Patent: August 29, 2017Assignee: The Lubrizol CorporationInventors: Jayasooriya Sujith Perera, Gary M. Walker, Christopher J. Ciolli, Christopher L. Friend
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Patent number: 9688939Abstract: Sulfurized calcium phenate detergents having a reduced unsulfurized alkyl-substituted phenol content are made by: (A) providing, made from an unsulfurized alkyl-substituted phenol, a sulfurized calcium phenate detergent that, optionally, may have been further reacted with carbon dioxide; (B) adding to the detergent from 1 to 100 mass %, based on the mass of the detergent, of an organic solvent that has a boiling point of above 100° C. and below the boiling point of the unsulfurized alkyl-substituted phenol; and (C) removing the organic solvent from the detergent thereby to reduce the unsulfurized alkyl-substituted phenol content.Type: GrantFiled: January 26, 2016Date of Patent: June 27, 2017Inventors: Dirk Schwaebisch, Jamie Musmacher, Alastair A. Cant
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Patent number: 9617496Abstract: A sulfurized alkaline earth metal (e.g., calcium) dodecylphenate is prepared by reacting (i) dodecylphenol with (ii) calcium hydroxide or calcium oxide in an amount of about 0.3 to about 0.7 moles per mole of dodecylphenol charged and (iii) an alkylene glycol in an amount of about 0.13 to about 0.6 moles per mole of dodecylphenol charged; and reacting the product of the first step with sulfur in an amount of about 1.6 to about 3 moles per mole of dodecylphenol charged; and thereafter optionally reacting the product with additional calcium hydroxide or calcium oxide and with carbon dioxide so as to form an overbased phenate. The product thus prepared has reduced levels of monomeric dodecylphenol.Type: GrantFiled: February 6, 2013Date of Patent: April 11, 2017Assignee: The Lubrizol CorporationInventors: Gary M. Walker, Roger L. Sowerby, James P. Roski, Roger L. Parsons, Christopher L. Friend, Andre Grange, Christopher J. Ciolli, Mohamed G. Fahmy, Jayasooriya Sujith Perera
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Patent number: 9062271Abstract: Disclosed herein is an overbased salt of a sulfurized alkyl-substituted hydroxyaromatic composition, which is prepared by the process comprising (a) providing an overbased salt of a sulfurized alkyl-substituted hydroxyaromatic composition having a total base number (TBN) greater than about 250; and (b) sparging the overbased salt of a sulfurized alkyl-substituted hydroxyaromatic composition with air at a temperature ranging from about 190° C. to about 250° C.Type: GrantFiled: October 30, 2013Date of Patent: June 23, 2015Assignees: Chevron Oronite Technology B.V., Chervon Oronite Company LLCInventors: Ronald T. F. Jukes, Eugene E. Spala
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Patent number: 8987178Abstract: The invention provides a lubricating composition containing an oil of lubricating viscosity and a calcium-containing detergent with a soap content of 0.06 wt % to 1.6 wt % of the lubricating composition. The lubricating composition is suitable for lubricating an internal combustion engine.Type: GrantFiled: December 17, 2008Date of Patent: March 24, 2015Assignee: The Lubrizol CorporationInventors: Mark C. Davies, Michael R. Sutton
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Patent number: 8772209Abstract: Disclosed herein is a process for preparing a salt of a sulfurized alkyl-substituted hydroxyaromatic composition having a reduced content of unsulfurized alkyl-substituted hydroxyaromatic compound and its unsulfurized metal salt.Type: GrantFiled: November 20, 2012Date of Patent: July 8, 2014Assignee: Chevron Oronite Company LLSInventors: Cedrick Mahieux, Richard Dutta, Curtis Campbell
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Patent number: 8747650Abstract: Provided are formulations, methods of making, and methods of using one or more Fischer-Tropsch Base Oils of the present invention in a low sulfur, low sulfated ash, and low phosphorus engine lubricant to enhance thermal stability of the lubricant as well as the high-temperature performance of an engine housing the lubricant.Type: GrantFiled: December 21, 2006Date of Patent: June 10, 2014Assignee: Chevron Oronite Technology B.V.Inventors: Jeroen Van Leeuwen, Peter Kleijwegt
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Patent number: 8709987Abstract: Provided is a lubricating oil composition comprising: (a) a major amount of an oil of lubricating viscosity; and (b) one or more borated alkaline earth metal alkyltoluene sulfonate detergents; wherein the lubricating oil composition comprises no more than about 0.20 wt. % of phosphorus and no more than about 0.50 wt. % of sulfur.Type: GrantFiled: February 15, 2012Date of Patent: April 29, 2014Assignees: Chevron Oronite S.A., Chevron Oronite Company LLCInventors: Perla Duchesne, John McDonald, Sinquin Gilles, Pierre Tequi
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Patent number: 8623799Abstract: A marine diesel cylinder is lubricated using a lubricant having a total base number (TBN) of at least about 25, comprising an oil of lubricating viscosity and a metal-containing detergent component. Forty to 90 percent of the TBN derived from the metal-containing detergent component is provided by calcium detergent; 5 to 40 percent of the TBN by sodium detergent; and 5 to 45 percent by magnesium detergent. At least 50 weight percent of the total detergent substrate is sulfonate and less than 50 weight percent is monomeric or oligomeric substrate comprising one or more units of alkyl-substituted phenol having an alkyl group of 8 to 14 carbon atoms. The lubricant is useful when the marine diesel engine is fueled with a liquid fuel containing at least 2 ppm vanadium.Type: GrantFiled: July 6, 2009Date of Patent: January 7, 2014Assignee: The Lubrizol CorporationInventors: Alexandra Mayhew, Stephen J. Cook
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Patent number: 8580717Abstract: An overbased, sulfurized salt of at least one alkylated hydroxyaromatic compound, wherein the alkyl substituent of the hydroxyaromatic compound is a residue of at least one isomerized olefin having from about 15 to about 99 wt. % branching is disclosed. The overbased, sulfurized salt of at least one alkylated hydroxyaromatic compound is produced by the process comprising: (a) alkylating at least one hydroxyaromatic compound with at least one isomerized olefin having from about 15 to about 99 wt. % branching obtained by isomerizing at least one normal alpha olefin having from about 10 to about 40 carbon atoms, to provide at least one alkylated hydroxyaromatic compound; (b) neutralizing and sulfurizing the alkylated hydroxyaromatic compound in any order to provide at least one neutralized, sulfurized alkylated hydroxyaromatic compound; and (c) overbasing the at least one neutralized, sulfurized alkylated hydroxyaromatic compound.Type: GrantFiled: November 24, 2009Date of Patent: November 12, 2013Assignees: Chevron Oronite Company LLC, Chevron U.S.A. Inc., Chevron Oronite S.A.Inventors: Gilles P. Sinquin, Thomas Francis Buckley, III, Charles Michael Cisson
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Patent number: 8557755Abstract: The invention provides a lubricating composition containing an oil of lubricating viscosity and a compound obtained/obtainable by a process comprising reacting a glycolic acid, a 2-halo-acetic acid, or a lactic acid, or an alkali or alkaline metal salts thereof, (typically glycolic acid or a 2-halo-acetic acid) with at least one member selected from the group consisting of an amine, an alcohol, and an aminoalcohol. The invention further relates to the use of the lubricating composition in an internal combustion engine.Type: GrantFiled: February 14, 2013Date of Patent: October 15, 2013Assignee: The Lubrizol CorporationInventors: William R. S. Barton, Seth L. Crawley, Patrick E. Mosier, Matthew D. Gieselman, Daniel J. Saccomando
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Patent number: 8530395Abstract: The invention provides a lubricating composition containing an oil of lubricating viscosity and a compound obtained/obtainable by a process comprising reacting a glycolic acid, a 2-halo-acetic acid, or a lactic acid, or an alkali or alkaline metal salts thereof, (typically glycolic acid or a 2-halo-acetic acid) with at least one member selected from the group consisting of an amine, an alcohol, and an aminoalcohol. The invention further relates to the use of the lubricating composition in an internal combustion engine.Type: GrantFiled: February 14, 2013Date of Patent: September 10, 2013Assignee: The Lubrizol CorporationInventors: William R. S. Barton, Seth L. Crawley, Patrick E. Mosier, Matthew D. Gieselman, Daniel J. Saccomando
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Patent number: 8470749Abstract: The invention provides a process for preparing a neutral or an overbased detergent, the process by: reacting (a) a pre-prepared suspension comprising (i) a metal base with a mean particle size of 10 micrometers or less; (ii) a surfactant; and (iii) an organic medium in which the metal base is suspended typically by a physical process. An overbased detergent may be formed with a further reaction with acidifying overbasing agent. The invention further provides a lubricant composition containing said neutral and overbased detergent.Type: GrantFiled: December 20, 2006Date of Patent: June 25, 2013Assignee: The Lubrizol CorporationInventors: Elisa Seddon, Claire Hollingshurst, Brian R. Cunningham, Alexander F. Psaila, David Hobson, Mohamed G. Fahmy, Willis P. Nichols, John W. Dunkerley
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Patent number: 8404625Abstract: The invention provides a lubricating composition containing an oil of lubricating viscosity and a compound obtained/obtainable by a process comprising reacting a glycolic acid, a 2-halo-acetic acid, or a lactic acid, or an alkali or alkaline metal salts thereof, (typically glycolic acid or a 2-halo-acetic acid) with at least one member selected from the group consisting of an amine, an alcohol, and an aminoalcohol. The invention further relates to the use of the lubricating composition in an internal combustion engine.Type: GrantFiled: August 16, 2010Date of Patent: March 26, 2013Assignee: The Lubrizol CorporationInventors: William R. S. Barton, Seth L. Crawley, Patrick E. Mosier, Matthew D. Gieselman, Daniel J. Saccomando
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Patent number: 8303850Abstract: A rust preventive oil composition includes at least one base oil selected from the group consisting of mineral oils and synthetic oils, having a 5%-distillation temperature of not less than 140° C. and not more than 250° C., a 95%-distillation temperature of 250° C. or less, a difference between the 5%-distillation temperature and the 95%-distillation temperature of 90° C. or less, an aromatic content of 5% by volume or less, a naphthene content of not less than 30% by volume and not more than 95% by volume, a density at 15° C. of 0.75 g/cm3 or more, and a kinematic viscosity at 40° C. of not less than 0.3 mm2/s and not more than 5.0 mm2/s; at least one base oil selected from the group consisting of mineral oils and synthetic oils; and a rust-preventing additive.Type: GrantFiled: July 14, 2010Date of Patent: November 6, 2012Assignee: JX Nippon Oil & Energy CorporationInventors: Junichi Shibata, Tadaaki Motoyama, Kazuhiko Endou
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Patent number: 8198225Abstract: Provided herein are sulfurized metal alkyl phenate compositions having a low alkyl phenol content. The sulfurized metal alkyl phenate compositions can be prepared by reacting a phenol compound of Formula (I) disclosed herein with an aldehyde to form a phenolic resin of Formula (II) disclosed herein and then by reacting the phenolic resin simultaneously with a metal base and a first sulfurizing agent. The sulfurized metal alkyl phenate compositions and the overbased sulfurized metal alkyl phenate compositions disclosed herein may be used as detergents for formulating lubricating oil compositions. The lubricating oil compositions disclosed herein have a reduced amount of the free phenol compound and a salt thereof.Type: GrantFiled: November 29, 2007Date of Patent: June 12, 2012Assignee: Chevron Oronite Company LLCInventors: James J. Harrison, John McDonald
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Patent number: 8183192Abstract: An overbased salt of an oligomerized alkylhydroxyaromatic compound for use in a lubricating oil composition is disclosed, wherein the alkyl group of the alkylhydroxyaromatic compound is derived from an olefin mixture comprising propylene oligomers having an initial boiling point of at least about 195° C. and a final boiling point of greater than 325° C. and up to about 400° C. as measured by ASTM D86. Also disclosed is a propylene oligomer having an initial boiling point of at least about 195° C. and a final boiling point of greater than 325° C. and up to about 400° C. as measured by ASTM D8, wherein the propylene oligomer contains a distribution of carbon atoms that comprise at least about 50 weight percent of C14 to C20 carbon atoms.Type: GrantFiled: February 3, 2010Date of Patent: May 22, 2012Assignees: Chevron Oronite Company LLC, Chevron Oronite S.A.Inventors: Gilles P. Sinquin, Michael R. Adams
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Crankcase lubricating oil composition for protection of silver bearings in locomotive diesel engines
Patent number: 8084404Abstract: The present invention is directed to a crankcase lubricating oil composition for protection of silver bearings in locomotive diesel engines comprising (A) a major amount of an oil of lubricating viscosity, and (B) a silver wear protection additive composition, and (C) one or more detergents. The silver wear protection additive composition of the present invention comprises a mixture of (i) a hydrocarbylamine salt of a di-alkyl di-thiophosphoric acid and (ii) a hydrocarbylamine salt of an alkyl acid phosphate.Type: GrantFiled: July 20, 2005Date of Patent: December 27, 2011Assignee: Chevron Oronite Company LLCInventors: Melanie F. Tobias, Kenneth D. Nelson, Elaine S. Yamaguchi, Vernon R. Small -
Patent number: 7960324Abstract: An additive composition providing improved low temperature viscosity, corrosion and detergent properties when used in lubricating oils for internal combustion engines is presented. The additive composition comprises an unsulfurized carboxylate detergent-dispersant additive having been modified by incorporation of from about 3.2 wt % to 7.5 wt %, based on the total additive composition, of an alkaline earth metal salt of a linear, saturated carboxylic acid having from about 16 to about 20 carbon atoms and wherein the additive composition has a superalkalinization ratio of less than about 1.4:1, a TBN of less than about 200 and a sediment value of less than about 0.2% by volume.Type: GrantFiled: September 3, 2004Date of Patent: June 14, 2011Assignee: Chevron Oronite Company LLCInventors: Jean-Louis Le Coent, Amedee Guellec
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Patent number: 7960319Abstract: A lubricating oil composition favorably employable for trunk piston diesel engines contains an overbased sulfurized alkylphenol calcium salt, at least two (preferably three) overbased alkylsalicylic acid calcium salts having different base ratios and hydrocarbyl groups of different carbon atom numbers, a borated ashless dispersant, and a zinc dihydrocarbyldithiophosphate.Type: GrantFiled: December 13, 2007Date of Patent: June 14, 2011Assignee: Chevron Japan Ltd.Inventor: Hiroyuki Nagamatsu
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Patent number: 7956021Abstract: A lubricating oil composition comprising a base oil of lubricating viscosity having a kinematic viscosity of 22 to 300 mm2/s at 40° C. and dissolved or dispersed therein the following additives in the following amounts based on a total amount of the lubricating oil composition: (1) an overbased sulfurized alkylphenol calcium salt detergent in an amount of 0.5 to 1.0 wt. % in terms of calcium content, (2) an overbased calcium alkylbenzenesulfonate detergent in an amount of 1.5 to 2.1 wt. % in terms of calcium content, (3) a nitrogen-containing ashless dispersant in an amount of 0.005 to 0.1 wt. % in terms of nitrogen content, and (4) a zinc dihydrocarbyldithiophosphate in an amount of 0.007 to 0.1 wt.Type: GrantFiled: December 19, 2006Date of Patent: June 7, 2011Assignee: Chevron Japan Ltd.Inventor: Hiroyuki Nagamatsu
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Patent number: 7956022Abstract: A process for preparing alkylhydroxybenzoate detergent-dispersant additives having low sulfur content and high TBN is described. The alkali metal alkylhydroxylbenzoate, alkaline earth metal alkylhydroxybenzoate and overbased alkaline earth metal alkylhydroxybenzoate reaction products described have a sulfur content in the range of from about 0.1 to 1.2 wt % are effective anti-corrosive detergent-dispersant additives in lubricating oil compositions.Type: GrantFiled: July 29, 2005Date of Patent: June 7, 2011Assignee: Chevron Oronite Company LLCInventors: Jean-Louis Le Coent, Jeffrey J. Toman, Curtis B. Campbell
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Patent number: 7875577Abstract: A lubricating oil composition comprising a base oil of lubricating viscosity having a kinematic viscosity of 22 to 300 mm2/s at 40° C. and dissolved or dispersed therein the following additives in the following amounts based on a total amount of the lubricating oil composition: (1) an overbased sulfurized alkylphenol calcium salt detergent in an amount of 0.1 to 1.6 wt. % in terms of calcium content, (2) an overbased calcium alkylbenzenesulfonate detergent in an amount of 0.6 to 2.1 wt. % in terms of calcium content, (3) a nitrogen-containing ashless dispersant in an amount of 0.005 to 0.1 wt. % in terms of nitrogen content, and (4) a zinc dihydrocarbyldithiophosphate in an amount of 0.01 to 0.1 wt.Type: GrantFiled: December 20, 2006Date of Patent: January 25, 2011Assignee: Chevron Japan Ltd.Inventor: Hiroyuki Nagamatsu
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Patent number: 7838474Abstract: This invention encompasses lubricating oil compositions comprising a base oil, a biodiesel fuel and a detergent. The detergent can be a metal phenate detergent such as alkaline metal phenates. The lubricating oil compositions can further comprise at least one antiwear agent such as zinc dialkyl dithiophosphate compounds. Methods of making and using the lubricating oil compositions are also described.Type: GrantFiled: October 31, 2007Date of Patent: November 23, 2010Assignee: Chevron Oronite Company LLCInventor: Alexander B. Boffa
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Patent number: 7833955Abstract: The present invention relates to the use of viscosity modifiers in a control release additive gel. Furthermore, the present invention relates to an additive gel containing a viscosity modifier that control releases additives into a lubricant.Type: GrantFiled: November 8, 2006Date of Patent: November 16, 2010Assignee: The Lubrizol CorporationInventors: James D. Burrington, Barbara P. Leffel
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Patent number: 7678746Abstract: A lubricating composition containing (a). at least 3 weight percent of an overbased sulphonate detergent with a metal ratio of 12.5:1 to 40:1; (b). at least 1.5 weight percent of a sulphur containing phenate detergent with a metal ratio of not more than 2.5; and (c). an oil of lubricating viscosity, wherein the sulphur containing phenate contains oligomers of hydrocarbyl phenol with at least 50 wt % of said oligomers in the form of the tetramer or higher oligomers. The composition is suitable for internal combustion engines, particularly marine diesel applications to provide improved cleanliness decreased cylinder wear and reduced deposits.Type: GrantFiled: May 13, 2005Date of Patent: March 16, 2010Assignee: The Lubrizol CorporationInventors: James P. Roski, Richard Leahy, Stephen J. Cook, Alexandra Mayhew
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Patent number: 7651984Abstract: 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: GrantFiled: June 27, 2002Date of Patent: January 26, 2010Assignee: The Lubrizol CorporationInventors: Stephen J. Cook, Alexandra Mayhew, Helena M. Cressey
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Publication number: 20090203563Abstract: The invention provides a process for preparing a neutral or an overbased detergent, the process by: reacting (a) a pre-prepared suspension comprising (i) a metal base with a mean particle size of 10 micrometres or less; (ii) a surfactant; and (iii) an organic medium in which the metal base is suspended typically by a physical process. An overbased detergent may be formed with a further reaction with acidifying overbasing agent. The invention further provides a lubricant composition containing said neutral and overbased detergent.Type: ApplicationFiled: December 20, 2006Publication date: August 13, 2009Applicant: The Lubrizol CorporationInventors: Elisa Seddon, Claire Hollingshurst, Brian R. Cunningham, Alexander F. Psaila, David Hobson, Mohamed G. Fahmy, Willis P. Nichols, John W. Dunkerley
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Patent number: 7405185Abstract: The present invention is directed to a novel process for making Group II metal overbased sulfurized alkylphenols, which process uses alkylene carbonate as both a source of carbon dioxide and alkylene glycol. In particular, under the reaction conditions using ethylene carbonate, carbonation time is reduced to about one quarter the time taught in the prior art to make Group II metal overbased sulfurized alkylphenol compositions. The present invention is also directed to a detergent-dispersant additive composition comprising a Group II metal overbased sulfurized alkylphenols, wherein the Group II metal overbased sulfurized alkylphenols have a reduced color as measured by ASTM Test No. D 6045 and an increased hydrolytic stability as measured by a modified ASTM Test No. 2619.Type: GrantFiled: September 26, 2003Date of Patent: July 29, 2008Assignee: Chevron Oronite Company LLCInventors: Robert H. Wollenberg, Steven G. Lockett
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Patent number: 7384896Abstract: In accordance with the present invention, it has been discovered that additive gels can provide additives to a functional fluid over time. In accordance with the present invention it has been discovered that an additive gel comprising i.) at least two additives selected from the group comprising detergents, dispersants, acids, bases, over based detergent, succinated polyolefins or mixtures thereof wherein the selected additives when combined form a gel; ii.Type: GrantFiled: January 28, 2005Date of Patent: June 10, 2008Assignee: The Lubrizol CorporationInventors: Herman F. George, James D. Burrington, John K. Pudelski, James P. Roski, John R. Martin, Jennifer M. Ineman, Gary A. Garvin, Frank M. van Lier, David A. McCaughey
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Publication number: 20080090741Abstract: The lubricant composition of the present disclosure comprises a major amount of a base oil and a minor amount of an additive composition comprising an overbased detergent and a low-base detergent, wherein the lubricant composition has a salt to metal ratio ranging from about 3.0 to about 8.0.Type: ApplicationFiled: October 16, 2006Publication date: April 17, 2008Inventor: William Y. Lam
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Publication number: 20080070818Abstract: A lubricating oil composition including at least one sulphurized overbased metal phenate detergent prepared from a C9-C15 alkyl phenol, at least one sulphurizing agent, at least one metal and at least one overbasing agent. The detergent includes less than 6.0% by combined mass of unsulphurized C9-C15 alkyl phenol and its unsulphurized metal salt. The lubricating oil composition exhibits an improved rate of acid neutralization.Type: ApplicationFiled: September 6, 2007Publication date: March 20, 2008Inventors: Stephen Arrowsmith, Laura Kosidowski, Jeremy R. Spencer, Peter D. Watts
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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: 20040224858Abstract: The present invention provides a low sulfur, low ash, and low phosphorus oil soluble lubricant additive package comprising an overbased metal phenate. Also included in the present invention are lubricating oils comprising the inventive oil soluble lubricant additive package, as well as machines lubricated by such oils. Several methods for lubricating machinery are also disclosed.Type: ApplicationFiled: May 6, 2003Publication date: November 11, 2004Applicant: Ethyl CorporationInventor: Carl K. Esche
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Patent number: 6645922Abstract: A lubricating oil composition suitable for a two-stroke cross-head marine diesel engine. The lubricating oil composition comprises a base oil and an oil-soluble overbased metal detergent additive in the form of a complex wherein the basic material of the detergent is stabilized by more than one surfactant.Type: GrantFiled: January 23, 2002Date of Patent: November 11, 2003Assignee: Infineum International Ltd.Inventors: Adrian Dunn, Laurent Chambard, Yolanda Owen
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Publication number: 20030195126Abstract: A lubricant additive composition comprising (a) a carboxylated detergent-dispersant obtained by (i) neutralizing alkylphenols using an alkaline earth base in the presence of at least one carboxylic acid that contains from one to four carbon atoms but in the absence of alkali base, dialcohol, and monoalcohol, forming an intermediate product, then (ii) carboxylating the intermediate product using carbon dioxide so that at least 20 mole percent of the original alkylphenol starting material has been converted to single aromatic-ring hydrocarbyl salicylate; and (b) an overbased, non-sulfonate-containing detergent such as, for instance, a hydrocarbyl phenate-carboxylate; a medium overbased salicylate having a total base number of about 50 to 170; a high overbased salicylate having a total base number greater than 170; or an overbased sulfurized hydrocarbyl phenate of alkaline earth metals; and combinations and mixtures thereof.Type: ApplicationFiled: April 12, 2002Publication date: October 16, 2003Inventor: Cornelis Hendrikus Maria Boons
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Patent number: 6569821Abstract: An overbased metal detergent having friction-modifying properties comprises colloidal inorganic base particles stably dispersed in an oil of lubricating viscosity. The colloidal particles constitute from 15 to 40 mass % of the detergent, and a stabilizing system constitutes from 20 to 45 mass % thereof, the balance being the oil of lubricating viscosity. The stabilizing system is the mixture obtained by combining an oil-soluble detergent component and from 25 to 75 mass % of an aliphatic amide having from 10 to 30 carbon atoms.Type: GrantFiled: January 3, 2000Date of Patent: May 27, 2003Assignee: Infineum USA L.P.Inventors: Tuncel Ibrahim, John A Cleverley, Phillip Skinner, Jane Rachel Galsworthy, Christopher John Adams, Rudi ter Haar
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Patent number: 6569818Abstract: A lubricating oil composition having a low P content of 0.01 to 0.1 wt. %, and a sulfated ash of 0.1 to 1 wt. %, which is composed of a) a major amount of mineral base oil having a low S content of at most 0.1 wt. %; b) an ashless alkenyl or alkyl-succinimide dispersant; c) a metal-containing detergent (non-sulfurized alkali metal or alkaline earth metal salt of an alkylsalicylic acid and/or non-sulfurized alkali metal or alkaline earth metal salt of an alkylphenol derivative having a Mannich base structure); d) Zn-DTP; e) an oxidation inhibitor (phenol compound and/or amine compound) and wherein the sulfur content is 0.01 to 0.3 wt %. The lubricating oil composition shows good high temperature detergency notwithstanding its low S, P, and sulfated ash content, and is favorably employable in diesel engines using fuel of an extremely low sulfur content.Type: GrantFiled: May 30, 2001Date of Patent: May 27, 2003Assignee: Chevron Oronite Company, LLCInventors: Morikuni Nakazato, Shigeru Iwamoto, Satoshi Hirano
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Patent number: 6551965Abstract: A lubricating oil composition containing a base oil of lubricating viscosity, overbased sulfurized alkylphenate detergent or its calcium salt, an overbased alkylsulfonate detergent or its calcium salt, an ashless dispersant, and a zinc dialkyldithiophosphate and/or zinc diaryidithiophosphate is described. The lubricating oil composition provides improved heat stability and anti-wear performance in marine diesel engines operated under severe conditions where the cylinder liner temperature may reach 200 to 260° C.Type: GrantFiled: November 14, 2001Date of Patent: April 22, 2003Assignee: Chevron Oronite Company LLCInventors: Hiroyuki Nagamatsu, Shigeru Iwamoto, Hirokazu Fujita
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Publication number: 20020155958Abstract: A lubricating oil composition suitable for a two-stroke cross-head marine diesel engine. The lubricating oil composition comprises a base oil and an oil-soluble overbased metal detergent additive in the form of a complex wherein the basic material of the detergent is stabilized by more than one surfactant.Type: ApplicationFiled: January 23, 2002Publication date: October 24, 2002Inventors: Adrian Dunn, Laurent Chambard, Yolanda Owen
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Publication number: 20020123434Abstract: A lubricating oil composition containing a base oil of lubricating viscosity, overbased sulfurized alkylphenate detergent or its calcium salt, an overbased alkylsulfonate detergent or its calcium salt, an ashless dispersant, and a zinc dialkyldithiophosphate and/or zinc diaryidithiophosphate is described. The lubricating oil composition provides improved heat stability and anti-wear performance in marine diesel engines operated under severe conditions where the cylinder liner temperature may reach 200 to 260° C.Type: ApplicationFiled: November 14, 2001Publication date: September 5, 2002Inventors: Hiroyuki Nagamatsu, Shigeru Iwamoto, Hirokazu Fujita
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Patent number: 6339052Abstract: A lubricating oil composition for gasoline and diesel internal combustion engines includes a major portion of an oil of lubricating viscosity; from 0.1 to 20.0% w/w of a component A which is a sulfurized, overbased calcium phenate detergent derived from distilled, hydrogenated cashew nut shell liquid; and from 0.1 to 10.Type: GrantFiled: June 30, 2000Date of Patent: January 15, 2002Assignee: Indian Oil Corporation LimitedInventors: Khem Chand Dohhen, Krishan Kumar Swami, Pankaj Kumar Mondal, Shanti Parkash, Rakesh Sarin, Deepak Kumar Tuli, Akhilesh Kumar Bhatnagar
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Patent number: 6310010Abstract: Concentrates for lubricating oil compositions are prepared by mixing at elevated temperature: (i) at least one high molecular weight ashless dispersant; (ii) at least one oil-soluble overbased metal detergent; and (iii) at least one surface-active agent comprising a low molecular weight hydroxyl or amine group.Type: GrantFiled: April 9, 1999Date of Patent: October 30, 2001Assignee: Exxon Chemicals Patents INCInventors: Gary Higton, Jacob Emert, Robert A. Wilkinson, Isabel P. MacDonald, Karl J. Van Driesen, Salvatore Rea, James P. Stokes, Andrew J. D. Ritchie
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Patent number: 6235688Abstract: Non-thixotropic, sodium-free lubricant additive having from 10% to 50% of a liquid organic diluent and from 30% to 90% of a substituted hydrocarbaryl metal salt. At least 30 mole percent of the metal in the metal salt is lithium, and the salt is essentially free of sodium. The BN of the non-thixotropic lubricant additive attributable to the lithium is less than 150. This additive is useful for decreasing black sludge deposits and piston deposits.Type: GrantFiled: September 24, 1997Date of Patent: May 22, 2001Assignee: Chevron Chemical Company LLCInventors: Vernon R. Small, Jean-Louis Le Coent, Gerrit J. Polhaar, Ita Suharti Suwandi, William Woodford Willis, Jr.
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Patent number: 6225266Abstract: A zinc-free lubricating composition for lubricating a continuously variable transmission, the lubricating composition comprising a mixture of a major amount of a lubricating oil and an effective amount of a performance enhancing additive combination comprising: (a) an ashless dispersant; (b) at least one organic phosphite; (c) a calcium detergent; (d) one or more friction modifiers selected from the group consisting of: succinimides and ethoxylated amines; and (e) a primary amide of a long chain carboxylic acid.Type: GrantFiled: May 28, 1999Date of Patent: May 1, 2001Assignee: Infineum USA L.P.Inventors: Raymond F. Watts, Katherine M. Richard
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Patent number: 6162769Abstract: A lubricating oil composition reduces the adverse effects of oxidation in a medium speed diesel engine. That lubricating oil composition has a major amount of a base oil of lubricating viscosity, from 1% to 30% of a highly overbased oil-soluble sulfurized alkaline earth metal hydrocarbyl phenate-carboxylate and from 0.1% to 5% of a polyalkylene succinimide prepared by reacting under reactive conditions a mixture of an alkenyl or alkylsuccinic acid derivative, an unsaturated acidic reagent copolymer of an unsaturated acidic reagent and an olefin, and a polyamine. When that lubricating oil composition has 0.1% to 2% of a physical mixture of from 20% to 90% of a zinc dialkyldithiophosphate derived from only primary alkyl alcohols, and from 10% to 80% of a zinc dialkyldithiophosphate derived from only secondary alkyl alcohols, the lubricating oil composition is useful for increasing the water tolerance of a medium speed diesel engine that are susceptible to water contamination.Type: GrantFiled: March 23, 1999Date of Patent: December 19, 2000Assignee: B.V. Chevron Centrale LaboratoriaInventors: Gerardus J. E. Polhaar, Dick J. E. Vrolijk
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Patent number: 6153565Abstract: Phenate overbased detergents and salicylate overbased detergents with TBN: % surfactant ratios of 11 or more are useful marine diesel lubricant additives.Type: GrantFiled: November 9, 1998Date of Patent: November 28, 2000Assignee: Exxon Chemical Patents INCInventors: Philip Skinner, Alain Louis Pierre Lenack
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Patent number: 6140279Abstract: Concentrates for lubricating oil compositions are prepared by mixing at elevated temperature:(i) at least one high molecular weight ashless dispersant;(ii) at least one oil-soluble overbased metal detergent; and (iii) at least one other concentrate additive provided that the additive is first mixed with the detergent or the dispersant.Type: GrantFiled: April 9, 1999Date of Patent: October 31, 2000Assignee: Exxon Chemical Patents IncInventors: Jacob Emert, Isabel P. MacDonald
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Patent number: 6090759Abstract: An additive concentrate suitable for incorporation into a finished lubricating oil composition is disclosed. The additive concentrate comprises:(a) a lubricating oil, and(b) a lubricating oil soluble sulphurized or non-sulphurized alkaline earth metal hydrocarbyl phenate modified by incorporation from 2 to less than 40% by weight based on the weight of said concentrate of either (i) at least one carboxylic acid having the formula: ##STR1## wherein R is a C.sub.10 to C.sub.24 alkyl or alkenyl group and R.sup.1 is either hydrogen, a C.sub.1 to C.sub.4 alkyl group or a --CH.sub.2 --COOH group, or an anhydride, acid chloride or ester thereof or (ii) a di- or polycarboxylic acid containing from 36 to 100 carbon atoms or an anhydride, acid chloride or ester thereof, said concentrate having a TBN greater than 300, and a viscosity at 100.degree. C. of less than 1,000 cSt. A process for making the foregoing concentrate is disclosed.Type: GrantFiled: December 16, 1997Date of Patent: July 18, 2000Assignee: Lubrizol Adibis Holdings (UK) Ltd.Inventors: Charles Cane, John Crawford, Sean Patrick O'Connor