Containing -c(=x)-, Wherein X Is Chalcogen Patents (Class 508/367)
  • Patent number: 10280383
    Abstract: A lubricating oil composition and method of operating a boosted internal combustion engine. The lubricating oil composition has not more than 150 ppm sodium and includes a major amount of a base oil and an additive composition that includes one or more overbased calcium-containing detergents having a total base number of greater than 225 mg KOH/gram, in an amount sufficient to provide greater than 1100 ppm by weight to less than 2400 ppm by weight of calcium to the lubricating oil composition, and one or more molybdenum-containing compounds in an amount sufficient to provide at least about 80 ppm by weight molybdenum to the lubricating oil composition, all based on the total weight of the lubricating composition. The oil and method may reduce low-speed pre-ignition events in the boosted internal combustion engine relative to a number of low-speed pre-ignition events in the same engine lubricated with a reference lubricating oil.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: May 7, 2019
    Assignee: Afton Chemical Corporation
    Inventors: Kristin Fletcher, William Y. Lam, Kongsheng Yang, Jeremy Styer
  • Patent number: 9677024
    Abstract: The present invention relates to an engine oil lubricant composition for use in internal combustion engines comprising one or more molybdenum containing compounds that deliver 1-1000 ppm molybdenum to the finished oil, one or more phosphorus containing compounds that deliver 25-650 ppm phosphorus to the finished oil, and one or more poly(meth)acrylate viscosity index improvers (VI improvers) that may or may not be functionalized, for improved fuel economy and turbocharger related deposits. In addition, the composition comprises an antioxidant system which is carefully balanced to provide improved fuel economy, comprising an aminic antioxidant, a phenolic antioxidant and an ashless dithiocarbamate. Additionally, the formulated oil may contain a dispersant poly(meth)acrylate, in addition to the PAMA VI improver, to reduce the amount of traditional succinimide dispersants.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: June 13, 2017
    Assignee: VANDERBILT CHEMICALS, LLC
    Inventors: Carl K. Esche, Glenn A. Mazzamaro, Thorsten Bartels, David B. Gray
  • Patent number: 9528071
    Abstract: Disclosed herein is lubricating oil composition for providing enhanced piston cleanliness in an internal combustion engine. The lubricating oil composition includes (a) greater than 65 wt. %, based on the total weight of the lubricating oil composition, of a base oil component having a Kv at 100° C. of about 3.5 to about 4.5 cSt; (b) about 3.0 wt. % to about 10 wt. %, based on the total weight of the lubricating oil composition, of at least one Mannich reaction product prepared by the condensation of a polyisobutyl-substituted hydroxyaromatic compound, wherein the polyisobutyl group is derived from polyisobutene containing at least about 70 wt. % methylvinylidene isomer and has a number average molecular weight of from about 400 to about 2,500, an aldehyde, an amino acid or ester derivative thereof, and an alkali metal base; and (c) at least one ashless dispersant other than component (b); wherein the lubricating oil composition has a sulfur content of less than or equal to about 0.30 wt.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: December 27, 2016
    Assignee: Chevron Oronite Technology B.V.
    Inventors: Richard Hogendoorn, Bertus Bernardus Hoogendam
  • Patent number: 9528074
    Abstract: Disclosed herein is lubricating oil composition for providing enhanced piston cleanliness in an internal combustion engine. The lubricating oil composition include (a) from about 50 to about 65 wt. %, based on the total weight of the lubricating oil composition, of a first base oil component having a Kv at 100° C. of about 3.5 to about 4.5 cSt; (b) from about 10 to about 30 wt. %, based on the total weight of the lubricating oil composition, of a second base oil component having a Kv at 100° C. of about 5.5 to about 6.5 cSt; (c) about 1.50 wt. % to about 10 wt. %, based on the total weight of the lubricating oil composition, of at least one Mannich reaction product as disclosed herein; and (d) at least one ashless dispersant other than component (c); wherein the lubricating oil composition has a sulfur content of less than or equal to about 0.30 wt. %, a phosphorus content of less than or equal to about 0.09 wt. %, and a sulfated ash content of less than or equal to about 1.60 wt.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: December 27, 2016
    Assignee: Chevron Oronite Technology B.V.
    Inventors: Richard Hogendoorn, Bertus Bernardus Hoogendam
  • Patent number: 9321979
    Abstract: Combining a metal based friction modifier, such as a molybdenum dialkyldithiocarbamate, and certain esters of hydroxy carboxylic acids, such as short chain alkyl esters of citric or tartaric acid, e.g., tributyl citrate, has a synergistic effect on lowering the friction coefficient of lubricating oils allowing one to reduce the amount of metal based friction modifier needed to adequately formulate a lubricant with low friction characteristics.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: April 26, 2016
    Assignee: Chemtura Corporation
    Inventors: Frank J. DeBlase, Venkatramanan K. Madabusi, Susan Ferrarotti, Faith Gaenzler, Cyril A. Migdal, Gerard Mulqueen
  • Publication number: 20140228264
    Abstract: A low-phosphorus lubrication composition has less than 600 ppm phosphorus, comprising at least 85 weight % of a lubricating base blend, and an additive comprising the following, as weight % of the total composition: (1) an organomolybdenum compound at an amount which provides about 0.1-800 ppm Mo; (2) a hindered phenol at about 0.1-2%; and (3) a dithiocarbamate at about 0.1-2%; with a first proviso that where the dithiocarbamate does not comprise a metal dithiocarbamate, the additive additionally comprises: (4) an alkylated diphenylamine at about 0.1-2%, and with a second proviso that where the organomolybdenum compound comprises molybdenum dithiocarbamate, it is considered a metal dithiocarbamate for purposes of the first proviso, but is considered an organomolybdenum compound for the purposes of calculation of the amount present in the total composition.
    Type: Application
    Filed: March 31, 2014
    Publication date: August 14, 2014
    Applicant: Vanderbilt Chemicals, LLC
    Inventors: GLENN A. MAZZAMARO, STEVEN G. DONNELLY, RONALD J. HIZA
  • Patent number: 8796472
    Abstract: The present invention relates to a mixture comprising itaconic acid or an itaconic acid derivative and a primary amine of the formula (I) R—NH2??(I) where the molar ratio of primary amine to itaconic acid or the itaconic acid derivative is in the range from 0.5:1 to 20:1, wherein the mixture comprises 50 mole percent or less of 4-carboxypyrrolidones of the formula (II), derivatives of the 4-carboxypyrrolidones of the formula (II) and 4-carbamidopyrrolidones of the formula (III) based on the itaconic acid used or the itaconic acid derivative used and in which R is a linear or branched saturated aliphatic radical having 1 to 24 carbon atoms or a saturated cycloaliphatic radical having 3 to 24 carbon atoms. The invention further provides for the use of the inventive mixtures for preparing 1,3-alkylmethylpyrrolidones and/or 1,4-alkylmethylpyrrolidones, and also a process for preparing 1,3-alkylmethylpyrrolidones and/or 1,4-alkylmethylpyrrolidones.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: August 5, 2014
    Assignee: BASF SE
    Inventors: Tobias Wabnitz, Rolf Pinkos, Karl Ott, Katja Lamm
  • Patent number: 8669386
    Abstract: This invention relates to an organic tungsten complex prepared by providing a strongly acidic tungsten precursor having pH?2.5, and either reacting the tungsten precursor with a nitrogenous base to form a tungsten salt intermediate having a pH ranging from ?5 to ?8.5, and further reacting the tungsten salt intermediate with a fatty acid derivative of an alcohol, wherein the fatty acid derivative of an alcohol contains at least one free hydroxyl group; or reacting the tungsten precursor with a fatty acid derivative of an alcohol, wherein the fatty acid derivative of an alcohol contains at least one free hydroxyl group and a nitrogenous base. Further, this invention relates to lubricating compositions containing the inventive tungsten complexes.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: March 11, 2014
    Assignee: Vandebilt Chemicals, LLC
    Inventor: David Boudreau, Sr.
  • Publication number: 20130281335
    Abstract: The present invention describes a new synthetic strategy that permits to produce 2D 1D, e OD hybrid organic-inorganic nanocrystals of tungsten/molybdenum chalcogenides. The innovative chemical approach is based on the thermal decomposition of a molecular precursor containing both metal and sulphur, in a mixture of long chain amines and/or fatty acids and/or long chain thiols. By the control of reaction conditions is possible to address the synthesis can be driven towards the formation of nanosystems with different morphologies such as sheets, particles, rods, tubes.
    Type: Application
    Filed: October 3, 2011
    Publication date: October 24, 2013
    Applicant: Universita Degli Studi Di Salerno
    Inventors: Claudia Altavilla, Paolo Ciambelli, Maria Sarno
  • Publication number: 20130129264
    Abstract: A lubricant oil composition containing an organic molybdenum compound which contains at least either one of a nitrogen (N) atom and an oxygen (O) atom in the molecule thereof and which may optionally contain a sulfur (S) atom, wherein a sulfur content of the organic molybdenum compound is 0.5% by mass or less based on the organic molybdenum compound. The lubricant oil composition, when used as a lubricant oil for a low-friction sliding material, exhibits an extremely low friction coefficient. A sliding mechanism having excellent low-friction property and wear resistance can be provided by combining the lubricant oil composition and a sliding member having a DLC film on its sliding face.
    Type: Application
    Filed: June 1, 2011
    Publication date: May 23, 2013
    Applicants: NIPPON ITF, INC., IDEMITSU KOSAN CO., LTD.
    Inventors: Nobuaki Watanabe, Masashi Kaji, Masanori Tsujioka, Koji Miyake
  • Patent number: 8241518
    Abstract: A soft magnetic material includes a plurality of composite magnetic particles including a metal magnetic particle and an insulating film surrounding a surface of the metal magnetic particle. The insulating film also contains a phosphate. The soft magnetic material further includes an aromatic polyetherketone resin and a metallic soap and/or an inorganic lubricant having a hexagonal crystal structure. The metallic soap and the inorganic lubricant are particles with an average particle size of not more than 2.0 ?m.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: August 14, 2012
    Assignees: Sumitomo Electric Industries, Ltd., Denso Corporation, Sumitomo Electric Sintered Alloy, Ltd.
    Inventors: Naoto Igarashi, Takao Nishioka, Yoshiyuki Shimada, Tsuyoshi Akao
  • Patent number: 8076275
    Abstract: Antioxidant additives for lubricating oils are prepared by reacting an acidic molybdenum compound or salt thereof and a basic nitrogen compound where the temperature of the process does not exceed 120° C., resulting in a product color that is light in intensity.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: December 13, 2011
    Assignee: Chevron Oronite Company LLC
    Inventors: William R. Ruhe, Jr., Anatoli Onopchenko
  • Patent number: 8044005
    Abstract: A rolling bearing, for use in household appliances, having a high degree of quietness, an excellent durability at high temperatures and rotational speeds, a low torque, and excellent fretting property; and a lubricant composition which can be sealed into the rolling bearing. The lubricant composition includes a base oil and a thickening agent. The base oil is a mixed oil having the following characteristics of (a) to (c): (a) The base oil consists essentially of a synthetic hydrocarbon oil and an ester oil; (b) A kinematic viscosity of the mixed oil at 40° C. is 40 to 70 mm2/second; (c) A mixing weight ratio between the ester oil of the mixed oil and the synthetic hydrocarbon oil thereof is 30:70 to 70:30. The thickening agent comprises a diurea compound shown by a formula (1): where R1 and R3 are a straight-chain alkyl groups having 9 to 22 carbon atoms respectively, and R2 is an aromatic hydrocarbon group having 6 to 15 carbon atoms. The lubricant composition is sealed into the rolling bearing.
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: October 25, 2011
    Assignee: NTN Corporation
    Inventors: Hidenobu Mikami, Seiji Okamura, Hiroki Iwamatsu, Masashi Mitsuoka
  • Publication number: 20100152076
    Abstract: A Lubricant comprises a carboxylic-acid-amide which is based on aliphatic unbranched, alicylic and/or aromatic chains with chain lengths from 2 to 60 carbon atoms.
    Type: Application
    Filed: November 23, 2005
    Publication date: June 17, 2010
    Applicant: AB SKF
    Inventors: Ebbe Malmstedt, Walter Holweger, Hurbertus Peek, Ingemar Strandell, Arno Stubenrauch, Bernhard Bauer, Frank Fiddelaers, Albert Van Den Kommer
  • Patent number: 7696139
    Abstract: A grease composition for a pivot assembly bearing is provided and includes a thickener of 5 to 25% by mass and a base oil of 95 to 75% by mass with respect to the total mass of the thickener and the base oil. Two or more ureas selected from: urea A: a urea comprising diurea compounds having an aliphatic (ALA)/alicyclic (ACA) substituent; urea B: a urea comprising diurea compounds having an alicyclic (ACA)/aromatic (ARA) substituent; and urea C: a urea comprising diurea compounds having an aromatic (ARA)/aliphatic (ALA) substituent are used as the thickener. A poly ?-olefin mixture having a kinematic viscosity at 40° C. of 40 to 70 mm2/s prepared by mixing poly ?-olefin (PAO HV) having a kinematic viscosity at 40° C. of 350 to 450 mm2/s with poly ?-olefin (PAO LV) having a kinematic viscosity at 40° C. of 25 to 40 mm2/s in a mass ratio of 15:85 to 30:70 is used as a base oil. A lead free additive may be used as an additive.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: April 13, 2010
    Assignees: Minebea Co., Ltd., Nippon Grease Co., Ltd.
    Inventors: Seiji Okamura, Motoharu Akiyama, Hiroki Iwamatsu, Yasuhiro Miyamoto
  • Patent number: 7696136
    Abstract: Disclosed herein is a composition comprising: (A) a lubricant or a hydrocarbon fuel; (B) at least one hydroxy carboxylic acid ester or hydroxy polycarboxylic acid ester having the generic formula defined herein; and (C) at least one phosphorus-containing additive.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: April 13, 2010
    Assignee: Crompton Corporation
    Inventors: Cyril A. Migdal, Robert G. Rowland
  • Publication number: 20090176671
    Abstract: The present invention provides a grease composition for use in constant velocity joints, having improved wear resistance and endurance characteristics. The grease is made by incorporating in a urea grease (A) a molybdenum dialkyldithiocarbamate, (B) a molybdenum dithiophosphate, (C) 2-(4-morpholinyldithio)benzothiazole and (D) a calcium sulphonate. The blended amount of (A)+(B) is made not more than 10% by weight, and that of (C) and (D) not more than 3% by weight respectively. Also, a grease for use in constant velocity joints is made by further adding (E) zinc dithiophosphate to the aforementioned components (A)+(B)+(C)+(D) in a blended amount of not more than 3% by weight.
    Type: Application
    Filed: May 9, 2007
    Publication date: July 9, 2009
    Applicants: Showa Shell Sekiyu K.K., NTN Corporation
    Inventors: Takahiro Ozaki, Kouichi Numazawa, Shinichi Takabe, Takaaki Shibata
  • Publication number: 20090156443
    Abstract: The present invention relates to an organic molybdenum additive and its preparation method, and a lubricating composition comprising said additive, and use of said additive and its lubricating composition in the aspect of improving antiwear and antifriction property of oil products. The organic molybdenum additive according to the present invention is characterized in that it is prepared by reacting several kinds of feedstock as follows: a polylol ester of p-hydroxybenzene alkyl acid, an inorganic molybdenum compound and an aliphatic amine and/or an aromatic amine and/or an amide. The organic molybdenum additive of the present invention has excellent antiwear and/or antifriction property.
    Type: Application
    Filed: February 28, 2007
    Publication date: June 18, 2009
    Applicants: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING SINOPEC
    Inventors: Wei Xu, Kecheng Wei, Qinghua Duan, Fuhui Zhang
  • Publication number: 20080234154
    Abstract: The present invention relates to lubricant compositions containing phosphorus and sulfur free organotungstates. The organotungstates are defined as either the reaction product of a mono- or diglyceride and a tungsten source, or as the reaction product of a secondary amine, a fatty acid derivative, and a tungsten source. These compositions exhibit improved antiwear, corrosion, and antioxidancy properties, particularly in low phosphorus and low sulfur environments.
    Type: Application
    Filed: March 20, 2008
    Publication date: September 25, 2008
    Applicant: R.T. VANDERBILT COMPANY, INC.
    Inventor: David Boudreau
  • Patent number: 7205423
    Abstract: This invention is a process for preparation of 2,4-heteroatom-substituted molybdena-3,3-dioxocycloalkane compounds by reacting diol-, diamino, thiol-alcohol- and amino-alcohol-compounds with the following reagents: ammonium molybdate (or in situ produced ammonium molybdate by the reaction of ammonia with molybdenum trioxide or molybdic acid) as a molybdenum source, ammonia as an additional or secondary reagent or promoter, in molar ratio NH3:Mo (amount of molybdenum in the molybdenum source) of ?1:1, preferably 1–3:1, more preferably 2–3:1, and most preferred 2.2–2.65:1.
    Type: Grant
    Filed: March 21, 2006
    Date of Patent: April 17, 2007
    Assignee: R.T. Vanderbilt Company, Inc.
    Inventors: Daniel Gershon, Shaun Jeremy Ensor, Michael James St. Pierre
  • Patent number: 6962896
    Abstract: Antioxidant additives for lubricating oils are prepared by reacting an acidic molybdenum compound or salt thereof and a basic nitrogen compound where the temperature of the process does not exceed 120° C., resulting in a product color that is light in intensity.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: November 8, 2005
    Assignee: Chevron Oronite Company LLC
    Inventors: William R. Ruhe, Jr., Anatoli Onopchenko
  • Patent number: 6914037
    Abstract: The invention relates to an improved process for producing organomolybdenum compositions with high molybdenum content that are highly useful as lubricant additives, in which the process involves reacting a fatty oil with a diamine, followed by reaction with a molybdenum source. The process of the present invention does not require a volatile organic solvent to promote molybdenum incorporation and produces an organomolybdenum composition having a high molybdenum content. In addition, the process can be conducted in the absence of sulfur and phosphorus-containing reactants.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: July 5, 2005
    Assignee: Ethyl Corporation
    Inventor: Vincent J. Gatto
  • Patent number: 6806241
    Abstract: Disclosed are antioxidant compositions comprising of: (1) an organomolybdenum compound; (2) an alkylated diphenylamine; and (3) a sulfur compound selected from the group consisting of: (a) thiadiazole; (b) dithiocarbamate; and (c) mixtures of (a) and (b).
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: October 19, 2004
    Assignee: R.T. Vanderbilt Company, Inc.
    Inventors: Thomas J. Karol, Steven G. Donnelly, Ronald J. Hiza
  • Publication number: 20040082486
    Abstract: The invention relates to an improved process for producing organomolybdenum compositions with high molybdenum content that are highly useful as lubricant additives, in which the process involves reacting a fatty oil with a diamine, followed by reaction with a molybdenum source. The process of the present invention does not require a volatile organic solvent to promote molybdenum incorporation and produces an organomolybdenum composition having a high molybdenum content. In addition, the process can be conducted in the absence of sulfur and phosphorus-containing reactants.
    Type: Application
    Filed: October 21, 2003
    Publication date: April 29, 2004
    Applicant: Ethyl Corporation
    Inventor: Vincent J. Gatto
  • Publication number: 20030224949
    Abstract: Antioxidant additives for lubricating oils are prepared by reacting an acidic molybdenum compound or salt thereof and a basic nitrogen compound where the temperature of the process does not exceed 120° C., resulting in a product color that is light in intensity.
    Type: Application
    Filed: May 31, 2002
    Publication date: December 4, 2003
    Inventors: William R. Ruhe, Anatoli Onopchenko
  • Patent number: 6645921
    Abstract: The invention relates to an improved process for producing organomolybdenum compositions with high molybdenum content that are highly useful as lubricant additives, in which the process involves reacting a fatty oil with a diamine, followed by reaction with a molybdenum source. The process of the present invention does not require a volatile organic solvent to promote molybdenum incorporation and produces an organomolybdenum composition having a high molybdenum content. In addition, the process can be conducted in the absence of sulfur and phosphorus-containing reactants.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: November 11, 2003
    Assignee: Ethyl Corporation
    Inventor: Vincent J. Gatto
  • Publication number: 20030171226
    Abstract: The invention relates to an improved process for producing organomolybdenum compositions with high molybdenum content that are highly useful as lubricant additives, in which the process involves reacting a fatty oil with a diamine, followed by reaction with a molybdenum source. The process of the present invention does not require a volatile organic solvent to promote molybdenum incorporation and produces an organomolybdenum composition having a high molybdenum content. In addition, the process can be conducted in the absence of sulfur and phosphorus-containing reactants.
    Type: Application
    Filed: February 8, 2002
    Publication date: September 11, 2003
    Applicant: Ethyl Corporation
    Inventor: Vincent J. Gatto
  • Publication number: 20030158051
    Abstract: Disclosed are antioxidant compositions comprising of:
    Type: Application
    Filed: September 19, 2002
    Publication date: August 21, 2003
    Inventors: Thomas J. Karol, Steven G. Donnelly, Ronald J. Hiza
  • Patent number: 6528463
    Abstract: Organic molybdenum complexes comprising the reaction products of a long-chain mono carboxylic acid, a mono-alkylated alkylene diamine, glycerides, and a molybdenum source and their use as multifunctional additives for lubricating compositions.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: March 4, 2003
    Assignee: Ethyl Corporation
    Inventors: Vincent James Gatto, Carl A. Mike, John T. Loper
  • Patent number: 6509303
    Abstract: Organic molybdenum complexes comprising the reaction products of fatty oils, a mono-alkylated alkylene diamine, and a molybdenum source and their use as multifunctional additives for lubricating compositions.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: January 21, 2003
    Assignee: Ethyl Corporation
    Inventor: Vincent James Gatto
  • Patent number: 6403538
    Abstract: Grease composition for constant velocity joints comprising a base oil and urea-based thickener, which grease further comprises, (A) from 0.1 to 10% by weight of an optionally substituted molybdenum-organocyclic compound containing at least 5 ring atoms, wherein each ring atom attached directly to the molybdenum atom is a hetero atom, (B) from 0.1 to 5% by weight of at least one sulphur-containing additive chosen from the group consisting of sulphur olefins, sulphur-phosphorus extreme-pressure agents, ashless dithiocarbamates, polysulphides, thiadiazoles and zinc dithiocarbamate, and (C) from 0.1 to 5% by weight of at least one phosphorous-containing additive chosen from the group consisting of molybdenum dithiophosphate, zinc dithiophosphate and triphenylphosphorothionate; a method of lubricating a constant velocity joint comprising packing it with said grease and a constant velocity joint packed with said grease.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: June 11, 2002
    Assignee: Shell Oil Company
    Inventors: Takahiro Ozaki, Tsutomu Yoshida, Ryuichi Masumori
  • Patent number: 6369007
    Abstract: Amphoteric derivatives of aliphatic polyamines, such as diethylenetriamine or bis (hexamethylene) triamine reacted with long chain fatty acids, esters or triglycerides from various natural or synthetic sources are effective in the softening/texture modification of substrates such as paper, textiles, human skin surfaces and hair tresses, as well as in applications for metal working and lubrication. The polyamines are first reacted with fatty acids, esters or triglycerides derived from various animal, vegetable or synthetic sources ranging in molecular distribution from butyric through erucic acids (e.g. milkfat, soy bean oil, rapeseed oil) to form amidoamines or imidazolines; and are then further reacted with unsaturated or carboxylated epoxy compounds (e.g. acrylic acid, itaconic acid, verndic) to form the various amphoteric structures.
    Type: Grant
    Filed: November 16, 1999
    Date of Patent: April 9, 2002
    Assignee: Mona Industries, Inc.
    Inventors: James E. Perella, Joseph A. Komor, Richard D. Katstra
  • Patent number: 6143701
    Abstract: A lubricating oil composition which exhibits improved fuel economy and fuel economy retention which contains the combination of an overbased oil soluble calcium detergent additive and an oil soluble trinuclear friction modifying molybdenum compound, the two components functioning to provide an improvement in the friction reducing properties of the composition.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: November 7, 2000
    Assignee: Exxon Chemical Patents Inc.
    Inventor: Alexander B. Boffa
  • Patent number: 6010987
    Abstract: The invention is a method for improving the friction reduction and friction reduction retention performance of a lubricating oil comprising adding to the lubricating oil a trinuclear molybdenum sulfur compound selected from the group of trinuclear molybdenum compounds preferably those having the formulas Mo.sub.3 S.sub.7 (dtc).sub.4 and Mo.sub.3 S.sub.4 (dtc).sub.4 and mixtures thereof wherein dtc represents independently selected diorganodithiocarbamate ligands containing independently selected organo groups and wherein the ligands have a sufficient number of carbon atoms among all the organo groups of the compound's ligands are present to render the compound soluble or dispersible in the lubricating oil. Concentrates of the composition are also included in the invention.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: January 4, 2000
    Assignee: Exxon Research and Engineering Co.
    Inventors: Edward Ira Stiefel, Jonathan M. McConnachie, Daniel Paul Leta, Charles Frederick Pictroski
  • Patent number: 5888945
    Abstract: The invention is a method for enhancing and restoring the friction reduction effectiveness of a lubricating oil comprising adding to the lubricating oil a trinuclear molybdenum sulfur compound selected from the group of trinuclear molybdenum compounds preferably those having the formulas Mo.sub.3 S.sub.7 (dtc).sub.4 and Mo.sub.3 S.sub.4 (dtc).sub.4 and mixtures thereof wherein dtc represents independently selected diorganodithiocarbamate ligands containing independently selected organo groups and wherein the ligands have a sufficient number of carbon atoms among all the organo groups of the compound's ligands are present to render the compound soluble or dispersible in the lubricating oil. The oil may be a fresh or used oil. Concentrates of the composition are also included in the invention.
    Type: Grant
    Filed: December 13, 1996
    Date of Patent: March 30, 1999
    Assignee: Exxon Research and Engineering Company
    Inventors: Edward Ira Stiefel, Jonathan M. McConnachie, Daniel Paul Leta
  • Patent number: 5824627
    Abstract: The invention relates to lube oil compositions containing a major amount of a lube oil and a minor amount of at least one compound containing a heterometallic tetranuclear preferably cubane, more preferably thiocubane core having 1 to 3 molybdenum atoms and the remainder Co, Cr, Cu, Ni, W, Mn, and Fe. Preferred is Cu. Thiocubane cores are also preferred and these typically have the formula M.sub.4-y Mo.sub.y S.sub.4 L.sub.n Q.sub.z, wherein y is 1 to 3, n is 2 to 6 and z is 0 to 4. Additive concentrates of the compounds as well as the method of making the compositions are disclosed.
    Type: Grant
    Filed: December 13, 1996
    Date of Patent: October 20, 1998
    Assignee: Exxon Research and Engineering Company
    Inventors: Jonathan M. McConnachie, Catherine Louise Coyle, Mark Alan Greaney, Edward Ira Stiefel
  • Patent number: 5811378
    Abstract: A composition of matter suitable for use as a dispersant-viscosity improver for lubricating oil compositions comprises the reaction product of reactants comprising(a) a hydrocarbon polymer grafted with an .alpha.,.beta.-ethylenically unsaturated carboxylic acid or functional derivative thereof, and(b) at least one nitrogen and metal containing derivative of a hydrocarbon substituted polycarboxylic acid or functional derivative thereof; and optionally(c) at least one hydroxyl-containing polyester containing at least one condensable free hydroxyl group.
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: September 22, 1998
    Assignee: The Lubrizol Corporation
    Inventor: Richard M. Lange
  • Patent number: 5650382
    Abstract: An additive for lubricants including a dispersible metal complex compound containing phosphorus and nitrogen. This complex compound consists of a co-ordination compound containing a fatty acid residue and at most one RCOO group per two metal atoms. Zinc is the metal of preference. Utilization for wet drawing of metal wire.
    Type: Grant
    Filed: April 18, 1995
    Date of Patent: July 22, 1997
    Assignee: N.V. Bekaert S.A.
    Inventors: Frank Deruyck, Wilfried Coppens
  • Patent number: 5628804
    Abstract: A polyether esteramide reaction product effective as a fuel additive for reducing intake valve deposits and octane requirement increase, as well as controlling combustion chamber deposits, in gasoline engines is disclosed together with fuel compositions and methods of making and using the same. The polyether esteramide reaction product contains two carbonyl groups. Preferably, the polyether esteramide contains an oxalyl group. Also disclosed are compositions and methods for dispersing deposits in lubricating oil products.
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: May 13, 1997
    Assignee: Ethyl Corporation
    Inventor: John T. Loper