Mono-, Di-, Or Polyester Of Polycarboxylic Acid Patents (Class 508/496)
-
Publication number: 20130029891Abstract: Provided is a turbine oil formulation comprised of a base oil selected from the group consisting of Group II, III and IV base oils and mixtures thereof, and an ester component comprised of at least one diester or triester species having ester links on adjacent carbons. The formulation exhibits less than 6 mg of sludge/100 ml of turbine oil, and is imminently suitable for use as a turbine oil.Type: ApplicationFiled: July 27, 2011Publication date: January 31, 2013Applicant: Chevron U.S.A.Inventors: Mark E. Okazaki, Nicole A. Ketterer
-
Publication number: 20130023454Abstract: Provided herein are compositions comprising at least one estolide compound of formula: in which n is an integer equal to or greater than 0; m is an integer equal to or greater than 1; R1, independently for each occurrence, is selected from optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched; R2 is selected from hydrogen and optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched; and R3 and R4, independently for each occurrence, are selected from optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched. Also provided are uses of the compositions described herein.Type: ApplicationFiled: August 16, 2012Publication date: January 24, 2013Inventors: Jakob BREDSGUARD, Jeremy FOREST, Travis THOMPSON
-
Patent number: 8357643Abstract: A lubricant from plant and/or animal oils and fats; methods for producing a lubricating oil, and the oil produced thereby. The lubricant is derived from an animal or plant fat or oil having an iodine number above about 7, and produced by epoxi-dising the fat or oil and (1) reacting the epoxidised fat or oil with a carboxylic acid anhydride in the presence of a basic catalyst to produce a diester, or (2) hydrogenating the epoxidised fat or oil to generate mono-alcohols and acylating the alcohol functionality with acid anhydrides, acid chlorides or carboxylic acids to produce a mono-ester.Type: GrantFiled: August 10, 2005Date of Patent: January 22, 2013Assignee: Battelle Memorial InstituteInventors: Herman Benecke, Bhima R. Vijayendran, Jeffrey Cafmeyer
-
Publication number: 20120322897Abstract: Provided herein are estolide compositions having high oxidative stability, said compositions comprising at least one compound of formula: in which n is an integer equal to or greater than 0; m is an integer equal to or greater than 1; R1, independently for each occurrence, is selected from optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched; R2 is selected from hydrogen and optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched; and R3 and R4, independently for each occurrence, are selected from optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched. Also provided herein are uses for the compositions and methods of preparing the same.Type: ApplicationFiled: May 30, 2012Publication date: December 20, 2012Inventors: Jakob BREDSGUARD, Jeremy FOREST, Travis THOMPSON
-
Patent number: 8324423Abstract: The present invention is generally directed to diester-based lubricant compositions. The present invention is also directed to methods of making these and other similar lubricant compositions. In some embodiments, the methods for making such diester-based lubricants utilize a biomass precursor and/or low value Fischer-Tropsch (FT) olefins and/or alcohols so as to produce high value diester-based lubricants. In some embodiments, such diester-based lubricants are derived from FT olefins and fatty acids. The fatty acids can be from a bio-based source (i.e., biomass, renewable source) or can be derived from FT alcohols via oxidation.Type: GrantFiled: June 25, 2010Date of Patent: December 4, 2012Assignee: Chevron U.S.A. Inc.Inventors: Stephen Joseph Miller, Saleh A. Elomari
-
Publication number: 20120302478Abstract: This invention provides a method for producing a lubricant composition that is comprised of a continuous phase and a discontinuous phase. The method involves mixing together high viscosity ester, ether or combination thereof, and polar diluent or solvent, to produce a solution. The solution is then added to a low viscosity Group IV base oil to produce a discontinuous phase dispersed throughout a continuous phase.Type: ApplicationFiled: May 27, 2011Publication date: November 29, 2012Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Evelyn N. Drake, James T. Carey, Suzzy C. Ho, Gordon H. Lee, Martin N. Webster
-
Publication number: 20120302473Abstract: This invention is directed to a lubricant composition that is comprised of a continuous phase and a discontinuous phase, i.e., a two phase lubricant composition. The continuous phase and the discontinuous phase of the lubricant of this invention are oil or oil type compositions that are essentially insoluble in one another. The lubricant composition is comprised of a continuous phase base oil that is comprised of a low viscosity Group II, III, IV or GTL base stock or a blend of at least two of the Group II, III, IV and GTL base stocks, optionally including a low viscosity Group V base stock, with the continuous phase base oil having, independently, a viscosity of from 1 to 100 cSt at 100° C. The lubricant composition is further comprised of a discontinuous phase that is comprised of an ester composition having a mean average droplet size of from 0.01 microns to 20 microns, in which the ester composition is comprised of an ester compound having no ether linkages.Type: ApplicationFiled: May 27, 2011Publication date: November 29, 2012Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Evelyn N. Drake, Samuel C. Bainbridge, David A. Blain, James T. Carey, Angela S. Galiano-Roth, L. Oscar Farng, Suzzy C. Ho, David K. Prendergast, Martin N. Webster, Margaret M. Wu
-
Publication number: 20120289444Abstract: The invention provides a lubricating composition containing (a) 0.001 wt % to 15 wt % of a polymer with radial or star architecture; (b) an overbased detergent; (c) a dispersant; and (d) an oil of lubricating viscosity. The invention further provides a method for lubricating a mechanical device with the lubricating composition.Type: ApplicationFiled: July 25, 2012Publication date: November 15, 2012Applicant: The Lubrizol CorporationInventors: Barton J. Schober, Mark C. Davies, Michael R. Sutton, Marina Baum, Daniel C. Visger, David Price, Brent R. Dohner, Mark F. Wilkes
-
Publication number: 20120283161Abstract: Disclosed is a lubricating oil composition which includes a diester-based base oil having an asymmetric structure in which the number of carbons of the alkyl chain bound to one ester group with respect to a central atom is two more than that of the alkyl group bound to the other ester group, and which has low viscosity and a comparatively small amount of evaporation at high temperature. When this composition is used for a motor of a small hard disk, power consumption can be reduced and stability at high temperature can be enhanced.Type: ApplicationFiled: October 12, 2011Publication date: November 8, 2012Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Ha Yong Jung, Myung Hwa Choi, Wang Hyun Kwon, Hyung Kyu Kim, Kun Kim
-
Patent number: 8304374Abstract: The present invention relates to a lubricating composition containing a dicarboxylic acid ester or a dicarboxylic acid amide as an antiwear agent. The invention further provides a lubricating composition suitable for the mechanical device such as an internal combustion engine.Type: GrantFiled: October 22, 2007Date of Patent: November 6, 2012Assignee: The Lubrizol CorporationInventors: Jason R. Brown, Patrick E. Mosier, Paul E. Adams
-
Patent number: 8293692Abstract: The present invention provides a lubricating oil composition comprising at least one type of base oil selected from mineral oils and synthetic oils, and a succinate ester and a sarcosinic acid as rust prevention agents. The succinate ester content is preferably set at 0.01 to 0.1 wt. %, and the sarcosinic acid content is preferably set at 0.001 to 0.01 wt. %. Further, they are preferably set such that the resulting weight ratio of the succinate ester content and sarcosinic acid content is 1:0.01 to 0.7. The lubricating oil composition according to the present invention shows excellent rust prevention properties and a satisfactorily long oxidation lifetime. Further it allows to attain a high level of anti-sludge performance and extreme pressure performance and lubrication performance, even when it is used for example in turbine bearings in combined cycle generators having multiplier gears operated under severe high temperature and high pressure conditions.Type: GrantFiled: July 18, 2007Date of Patent: October 23, 2012Assignee: Shell Oil CompanyInventor: Tohru Ikai
-
Patent number: 8273694Abstract: The application provides a base stock or a lubricant composition comprising the substances derived from algae by chemical modification of algal oil, including compositions comprising estomers. Methods for obtaining the same are also provided, including chemically modifying the algal oil with a saturated fatty acid under conditions favorable to the formation of a poly-estomer.Type: GrantFiled: July 27, 2009Date of Patent: September 25, 2012Inventors: Jeffrey A. Brown, Joseph A. Duimstra, Jason R. Wells
-
Publication number: 20120214920Abstract: A plasticizer composition comprising vicinally diacylated fatty acid esters derived from renewable feedstocks, and a process for the preparation thereof, are disclosed. A composition comprising a halogen-containing polymer and a plasticizer composition comprising the vicinally diacylated fatty acid esters is also described. A method for plasticizing halogen-containing polymers, such as polyvinyl chloride (PVC) resins is provided. The plasticizer compositions may be added to PVC resins in amounts ranging between 1 and 200 phr.Type: ApplicationFiled: January 29, 2012Publication date: August 23, 2012Applicant: GALATA CHEMICALS LLC.Inventor: Peter FRENKEL
-
Publication number: 20120208731Abstract: The invention relates to a method of lubricating a limited slip differential comprising supplying to the limited slip differential a lubricating composition containing (a) an oil of lubricating viscosity, and (b) a C4-30-diester of a dicarboxylic acid. The invention further provides for the use of the C4-30-diester of a dicarboxylic acid as a friction modifier, typically in a limited slip differential.Type: ApplicationFiled: September 14, 2010Publication date: August 16, 2012Applicant: THE LUBRIZOL CORPORATIONInventors: Pamela Lann, William D. Abraham, Mark R. Baker
-
Publication number: 20120208732Abstract: This invention relates to base ester compounds and complex ester compounds that can be used as a base stock for lubricant applications or a base stock blend component for use in a finished lubricant or for particular applications, and methods of making the same. The base ester compounds and complex esters described herein comprise dimer and/or trimer esters, and their respective branched derivatives.Type: ApplicationFiled: February 13, 2011Publication date: August 16, 2012Inventors: Suresh Narine, Shaojun Li, Ali Mahdevari, Laziz Bouzidi, Stephen Augustine DiBiase, Syed Q.A. Rizvi
-
Publication number: 20120202724Abstract: A method in which an improved lubricating composition containing ionic liquids is used to enable operation of chains, steel belts, wheel bearings, roller bearings, sliding bearings and electric motors for at least 48 hours by reducing the evaporation loss and the lackification tendency of the lubricant due to the lubricant being protected against thermal and oxidative attack.Type: ApplicationFiled: April 12, 2012Publication date: August 9, 2012Applicant: KLUEBER LUBRICATION MUENCHEN KGInventors: Günther BODESHEIM, Martin SCHMIDT-AMELUNXEN, Dieter SOHN, Stefan GRUNDEI, Andrea HÖPKE
-
Patent number: 8198224Abstract: Processes are described for producing liquid, biobased lubricant additives containing from 50 to 100% biobased carbon according to ASTM D6866 from heat-bodied oils by transesterification with biobased or petroleum based alcohols and by hydrotreatment of at least the resulting diesters, triesters and polyesters.Type: GrantFiled: January 10, 2012Date of Patent: June 12, 2012Assignee: Archer Daniels Midland CompanyInventor: Paul Bloom
-
Patent number: 8198223Abstract: Processes are described for producing liquid, biobased lubricant additives containing from 50 to 100% biobased carbon according to ASTM D6866 from heat-bodied oils by transesterification with biobased or petroleum based alcohols and by hydrotreatment of at least the resulting diesters, triesters and polyesters.Type: GrantFiled: August 1, 2011Date of Patent: June 12, 2012Assignee: Archer Daniels Midland CompanyInventor: Paul Bloom
-
Patent number: 8183190Abstract: A biodegradable lubricant composition containing a complex polyol ester having a polyfunctional alcohol residue and a saturated or unsaturated dicarboxylic acid residue having from about 9 to about 22 carbon atoms.Type: GrantFiled: July 29, 2004Date of Patent: May 22, 2012Assignee: Cognis IP Management GmbHInventors: Eugene Zehler, Christopher Costello
-
Publication number: 20120108480Abstract: Processes are described for producing liquid, biobased lubricant additives containing from 50 to 100% biobased carbon according to ASTM D6866 from heat-bodied oils by transesterification with biobased or petroleum based alcohols and by hydrotreatment of at least the resulting diesters, triesters and polyesters.Type: ApplicationFiled: January 10, 2012Publication date: May 3, 2012Applicant: Archer Daniels Midland CompanyInventor: Paul Bloom
-
Publication number: 20120108481Abstract: The present invention provides a lubricating composition comprising: a base oil; and a viscosity index improver containing poly(meth)acrylate having hydroxyl groups in the structure and having a hydroxyl value of from 22 to 37.Type: ApplicationFiled: June 8, 2010Publication date: May 3, 2012Inventors: Eiji Nagatomi, Hiroyuki Tazaki, Tetsuo Wakizono
-
Patent number: 8153569Abstract: Disclosed is lubricant base oil that is excellent in lubricity, sludge solubility, low viscosity, and low temperature characteristics and capable of realizing low volatility. The lubricant base oil contains as its main component a diester or triester synthesized from a divalent or trivalent carboxylic acid of 9 or less carbon atoms and a monovalent glycol ether such as an alkylene glycol monoalkyl ether of 3 to 25 carbon atoms and is useful as base oil for lubricating oil and grease. Di(hexyloxyethyl) adipate may be cited as an appropriate example of the diester.Type: GrantFiled: March 27, 2007Date of Patent: April 10, 2012Assignee: Nippon Steel Chemical Co., Ltd.Inventors: Tadashi Kuratomi, Katsumi Nagano
-
Publication number: 20120083435Abstract: Provided herein are compounds, including those of the Formula II in which n is an integer equal to or greater than 1; R2, is selected from hydrogen and optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched; and R3, and R4, independently for each occurrence, are selected from optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched. Also provided are compositions containing such compounds and methods of making both compounds and compositions thereof.Type: ApplicationFiled: August 31, 2011Publication date: April 5, 2012Inventor: Jakob BREDSGUARD
-
Patent number: 8114209Abstract: The invention provides an oil type release agent die casting containing 70 to 98 parts by weight of a solvent having a specified flash point, 1 to 10 parts by weight of mineral oils and/or synthetic oils having a high viscosity, 15 parts by weight or less of a silicone oil, and 1 to 5 parts by weight of additives having a lubricating function, wherein the flash point of the agent is in the range of 70 to 170° C., and dynamic viscosity of the agent is 2 to 30 mm2/s or higher at 40° C., and a method for setting a mixing ratio of the solvent, a casting method, and a spraying unit for the case of using the release agent.Type: GrantFiled: February 8, 2007Date of Patent: February 14, 2012Assignees: Aoki Science Institute Co., Ltd., Ryobi Ltd., Kotobuki Kinzoku Kogyo Co., Ltd., Aisan Industry Co., Ltd.Inventors: Hisaharu Aoki, Koji Togawa, Hirobumi Ohira, Masanao Kobayashi, Yuichi Yamazaki, Hiroaki Komatsubara, Toshiaki Shimizu, Ryusuke Izawa, Hideki Furukawa, Masayuki Harada, Mitsuyoshi Yokoi, Masayuki Kito, Keigo Yorioka, Akihiro Hayashi
-
Publication number: 20120021956Abstract: The invention provides a lubricating composition containing a ?-amino compound. The invention further relates to a method of lubricating an internal combustion engine by lubricating the engine with the lubricating composition. The invention further relates to the use of the ?-amino carbonyl compound as copper corrosion inhibitors, friction control agents, antiwear and/or extreme pressure agents.Type: ApplicationFiled: February 5, 2010Publication date: January 26, 2012Applicant: The Lubrizol CorporationInventors: Matthew D. Gieselman, Jody A. Kocsis
-
Publication number: 20110312864Abstract: The present invention relates to alcohols and in particular to C4 to C15 alcohols that are used in the production of esters.Type: ApplicationFiled: December 3, 2009Publication date: December 22, 2011Inventors: Allen D. Godwin, Philippe L. Buess, Raphael F. Caers, Arie Van Vliet, Eddy T.A. Van Driessche, Alfons Cuyckens
-
Publication number: 20110294708Abstract: A lubricating oil composition for automatic transmission including (A) a lubricant base oil having a kinematic viscosity at 100° C. of from 1.5 to 20 mm2/s, (B) a polymethacrylate based viscosity index improver, and (C) a sulfur based compound having an acid value of not more than 1.0 mg-KOH/g and represented by the following general formula (1): S—(CH2CH2COOR)2??(1) (in the formula, R represents a hydrocarbon group having from 8 to 30 carbon atoms), which has a high transmission torque capacity and satisfactory gear change shock characteristics and attains excellent fuel efficiency, is provided. Also, a lubricating oil composition for automatic transmission which is a lubricating oil having a low viscosity and a high viscosity index and which, despite this, not only has excellent shear stability and fatigue resistance (durability) but has a high transmission torque capacity and satisfactory gear change shock characteristics and attains excellent fuel efficiency, is provided.Type: ApplicationFiled: January 28, 2010Publication date: December 1, 2011Applicant: IDEMITSU KOSAN CO., LTD.Inventor: Keiichi Narita
-
Patent number: 8044232Abstract: The present invention relates to a succinic diester polymer which is used in the preparation of water-in-oil macroemulsions. Said polymer, which has an excellent ability to stabilize a water-in-oil macroemulsion, has the formula (I) wherein L is a polyalkenyl group having a number average molecular weight of are poly(alkyleneoxy) chains with a molecular weight of from 500 to 1,200, where each alkyleneoxy group contains 2 or 3 carbon atoms and the number of alkyleneoxy groups being ethyleneoxy groups is at least 50% of the total number of alkyleneoxy groups, and R1 and R2 independently are alkyl groups having of from 1 to 3 carbons atoms. The emulsions of the invention can be used as a diesel fuel, a gasoline fuel, a heating fuel, a dry cleaning liquid, a metalworking fluid or a personal care formulation.Type: GrantFiled: November 24, 2006Date of Patent: October 25, 2011Assignee: Akzo Nobel N.V.Inventors: Albert Van De Berg, Anna Lif, Ingemar Uneback
-
Patent number: 7998913Abstract: Additives that inhibit the passage of oil across oil-air interfaces in disk drives and enable the use of the lower viscosity oil in disk drives are disclosed. Mass transfer of oil from the bulk liquid oil into the vapor phase takes place by oil molecules evaporating from the oil-air interface, or collections of oil molecules being ejected from the oil-air interface as aerosol. The invention reduces mass transfer across the oil-air interface through the use of oil-soluble surfactants.Type: GrantFiled: June 11, 2007Date of Patent: August 16, 2011Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Ferdinand Hendriks, Thomas Edward Karis, Kunihiro Shida
-
Patent number: 7994107Abstract: Processes are described for producing liquid, biobased lubricant additives containing from 50 to 100% biobased carbon according to ASTM D6866 from heat-bodied oils by transesterification with biobased or petroleum based alcohols and by hydrogenation of at least the resulting diesters, triesters and polyesters.Type: GrantFiled: April 28, 2009Date of Patent: August 9, 2011Assignee: Archer-Daniels-Midland CompanyInventor: Paul Bloom
-
Publication number: 20110111996Abstract: A lubricant composition characterized by the Society of Automotive Engineers (“SAE”) as 75W-140 capable of meeting the American Petroleum Institute's (“API”) GL-5 performance classification requirements for use in association with a device involving metal to metal contact of moving parts comprising: (a) base-stock comprising (i) at least one relatively low viscosity polyalphaolefin, and (ii) at least one diester; (b) viscosity improver comprising (i) at least one relatively high viscosity polyalphaolefin, and (ii) polyisobutylene; and (c) a performance additive comprising at least one additive effective to improve at least one property of the lubricant and/or the performance of the equipment in which the lubricant is to be used.Type: ApplicationFiled: November 8, 2010Publication date: May 12, 2011Applicant: COGNIS IP MANAGEMENT GMBHInventors: Stephen Lakes, Mark Witschger, Vasudevan Balasubramaniam
-
Publication number: 20110109995Abstract: A bearing lubricant includes a base oil containing an ester compound consisting of 2-ethyl-2-methyl-1,3-propanediol and at least one of carboxylic acids having 5 to 12 carbon atoms, the ester compound being represented by the following formula (1), in which the base oil has a kinetic viscosity at approximately 40° C. of approximately 7 to 15 mPa, and has a pour point of approximately ?60° C. or less: where R1 and R2 represent hydrocarbon groups having 4 to 11 carbon atoms.Type: ApplicationFiled: November 10, 2009Publication date: May 12, 2011Applicants: ALPHANA TECHNOLOGY CO., LTD., BALBIS CO., LTD.Inventors: Mitsuo KODAMA, Takuji YAMADA, Hiroyuki ANZAI
-
Publication number: 20110077184Abstract: The present invention is generally directed to methods of making diester-based lubricant compositions, wherein formation of diester species proceeds via direct esterification of epoxide intermediates. In some embodiments, the methods for making such diester-based lubricants utilize a biomass precursor and/or low value (e.g., Fischer-Tropsch (FT) olefins and/or alcohols) so as to produce high value diester-based lubricants. In some embodiments, such diester-based lubricants are derived from FT olefins and fatty acids. The fatty acids can be from a bio-based source (i.e., biomass, renewable source) or can be derived from FT alcohols via oxidation.Type: ApplicationFiled: December 7, 2010Publication date: March 31, 2011Applicant: Chevron U.S.A. Inc.Inventors: Stephen Joseph Miller, Zhen Zhou, Saleh A. Elomari
-
Publication number: 20110059878Abstract: The present disclosure relates to lubricant oil compositions formed from base stock oils to optimize internal combustion engine performance. Base stock oils are identified that have selected cetane number characteristics and relatively reduced reactivity to improve their associated combustion characteristics and reduce engine knock without the need to modify the engine fuel or engine parameters such as compression ratio and/or ignition timing. The base stocks may specifically include esters of dicarboxylic acids, esters of trimellitic anhydride and/or alklyated naphthalene compounds.Type: ApplicationFiled: September 10, 2009Publication date: March 10, 2011Applicant: SOUTHWEST RESEARCH INSTITUTEInventors: Manfred AMANN, Terrence Francis ALGER, II, Thomas W. RYAN, III
-
Publication number: 20110053817Abstract: The present invention is generally directed to the present invention provides for multi-grade engine oil formulations comprising a diester component, wherein the diester component comprises vicinal diester species, and wherein at least a portion of said diester component is bio-derived. Many such formulations of the present invention are expected to favorably compete with similar, existing formulations comprising synthetic esters, but such formulations are generally expected to meet or exceed such existing formulations in a number of areas including, but not limited to, economics, biodegradability, and/or toxicity.Type: ApplicationFiled: August 26, 2009Publication date: March 3, 2011Applicant: Chevron U.S.A. Inc.Inventors: Stephen Joseph Miller, Saleh A. Elomari, Zhen Zhou
-
Patent number: 7897551Abstract: There is provided lubricants for power transmission which exhibit not only a high coefficient of traction but also a high flash point. The lubricants for power transmission according to the present invention contains an alicyclic alcohol carboxylic diester compound represented by the general formula (1): R1—CO—O—(X1)m—Z—(X2)n—O—CO—R2??(1) wherein Z is a cycloalkylene group having 3 to 12 carbon atoms; R1 and R2 are each independently a chain hydrocarbon group having 3 to 20 carbon atoms; X1 and X2 are each independently a linear or branched alkylene group having 1 to 5 carbon atoms; and m and n are respectively an integer of 0 or 1.Type: GrantFiled: April 25, 2006Date of Patent: March 1, 2011Assignee: Idemitsu Kosan Co., Ltd.Inventors: Yoshitaka Tamoto, Hitoshi Hata, Yukitoshi Fujinami
-
Publication number: 20110039742Abstract: Processes are described for producing liquid, biobased lubricant additives containing from 50 to 100% biobased carbon according to ASTM D6866 from heat-bodied oils by transesterification with biobased or petroleum based alcohols and by hydrogenation of at least the resulting diesters, triesters and polyesters.Type: ApplicationFiled: April 28, 2009Publication date: February 17, 2011Applicant: ARCHER DANIELS MIDLAND COMPANYInventor: Paul Bloom
-
Patent number: 7888298Abstract: A lubricant composition for providing friction reducing properties and VI and solvency improving properties in a lubricant system is disclosed. The lubricant composition comprises a major amount of at least one base oil and an effective amount of a high viscosity polyester additive having a kinematic viscosity at 100° C. of at least about 2,500 mm2/s.Type: GrantFiled: March 20, 2007Date of Patent: February 15, 2011Assignee: ExxonMobil Research and Engineering CompanyInventors: Marc-Andre Poirier, Kevin L. Crouthamel
-
Publication number: 20110009300Abstract: The present invention is generally directed to diester-based lubricant compositions comprising one or more isomeric mixtures of diester species. The present invention is also directed to methods of making these and other similar lubricant compositions. In some embodiments, the methods for making such diester-based lubricants utilize a biomass precursor material from which mono-unsaturated free lipid species can be provided or otherwise generated, wherein such mono-unsaturated free lipid species arc converted to isomeric diol species en route to the synthesis of diester species for use as/in the diester-based lubricant compositions.Type: ApplicationFiled: July 7, 2009Publication date: January 13, 2011Applicant: Chevron U.S.A. Inc.Inventors: Saleh A. Elomari, Stephen Joseph Miller, Zhen Zhou
-
Patent number: 7867959Abstract: The present invention is generally directed to methods of making diester-based lubricant compositions, wherein formation of diester species proceeds via direct esterification of epoxide intermediates. In some embodiments, the methods for making such diester-based lubricants utilize a biomass precursor and/or low value (e.g., Fischer-Tropsch (FT) olefins and/or alcohols) so as to produce high value diester-based lubricants. In some embodiments, such diester-based lubricants are derived from FT olefins and tatty acids. The fatty acids can be from a bio-based source (i.e., biomass, renewable source) or can be derived from FT alcohols via oxidation.Type: GrantFiled: January 31, 2008Date of Patent: January 11, 2011Assignee: Chevron U.S.A. Inc.Inventors: Stephen Joseph Miller, Zhen Zhou, Saleh A. Elomari
-
Publication number: 20100311625Abstract: The present invention is generally directed to triester-based lubricant compositions. The present invention is also directed to methods of making these and other similar lubricant compositions. In some embodiments, the methods for making such triester-based lubricants utilize a biomass precursor comprising mono-unsaturated fatty acids, wherein such mono-unsaturated fatty acids are reduced to mono-unsaturated fatty alcohols en route to the synthesis of triester species for use as/in the triester-based lubricant compositions. Subsequent steps in such synthesis may employ carboxylic acids and/or acyl halides/anhydrides derived from biomass and/or Fischer-Tropsch synthesis.Type: ApplicationFiled: June 8, 2009Publication date: December 9, 2010Applicant: Chevron U.S.A. Inc.Inventors: Saleh A. Elomari, Stephen Joseph Miller, Zhen Zhou
-
Patent number: 7829512Abstract: A continuous process for preparing lithium complex greases improved by using a complexing agent of dimethyl glutarate, dimethyl adipate, glutaric acid, adipic acid, or mixtures thereof, and preferably also a specialized flash chamber to achieve a penetration split (60X-UW) of within ?20 mm/10 to 10 mm/10, a roll stability (D1831) of <30 mm/10, and a dropping point (D2265) of >240° C.Type: GrantFiled: October 1, 2004Date of Patent: November 9, 2010Assignee: ExxonMobil Research and Engineering CompanyInventors: Spencer Troy Stober, Todd Timothy Nadasdi, John Phillips Doner, John Kenneth Graham, Norman Charles Sundstrom, Paul Richard Grives, Barbara Anne Carfolite, James Fredrick Van Auken, James E. Spagnoli
-
Publication number: 20100261628Abstract: A process for improving the oxidation stability of lubricants including providing one or more esters containing branched alkyl groups which are reaction products of branched alcohols with a) one or more aliphatic dicarboxylic acids corresponding to general formula (II): HOOC—R2—COOH in which R2 is a branched or unbranched, saturated alkyl group containing 0 to 34 carbon atoms, or b) one or more saturated branched, monocarboxylic acids corresponding to general formula (III): R3—COOH in which R3 is a branched alkyl group of 3 to 39 carbon atoms, or c) one or more saturated monocarboxylic acids corresponding to general formula (III) in which R3 is a linear alkyl group of 3 to 29 carbon atoms, or d) a mixture thereof, as lubricants, with the proviso that the esters have an oxidation stability of 1000 hours or more, as determined by the Turbine Oil Stability Test (TOST test) to DIN EN ISO 4263-3.Type: ApplicationFiled: January 4, 2007Publication date: October 14, 2010Inventors: Markus Scherer, Dirk Rettemeyer
-
Patent number: 7795337Abstract: A thixotropy imparting composition. The composition comprises the reaction products of: one or more polyesters from one or more polyols having at least two hydroxyl moieties; and one or more polycarboxylic acids having at least two carboxylic acid moieties; and one or more basic compounds, wherein said polyesters have at least two active carboxylic acid moieties as end groups and at least a portion of said carboxylic acid moieties are in the carboxylate anion form. This composition may further comprise one or more diluents. The composition exists as a liquid. The composition may be used in a non-aqueous fluid system as a rheological additive in combination with one or more particulate materials, wherein said rheological additive imparts thixotropy to said system. A thixotropy imparting composition.Type: GrantFiled: March 31, 2006Date of Patent: September 14, 2010Assignee: Elementis Specialties, Inc.Inventors: Richard Alexander Geurtsen, Eduardus Maria Mangnus
-
Publication number: 20100190669Abstract: The present invention relates to a method of lubricating an aluminium-composite surface by supplying to the aluminium composite surface (typically an internal combustion engine aluminium surface) a lubricating composition comprising an oil of lubricating viscosity and an ashless antiwear agent.Type: ApplicationFiled: May 15, 2008Publication date: July 29, 2010Applicant: THE LUBRIZOL CORPORATIONInventors: Mark Davies, Rodney J. McAtee
-
Publication number: 20100120643Abstract: The application provides a base stock or a lubricant composition comprising the substances derived from algae by chemical modification of algal oil, including compositions comprising estomers. Methods for obtaining the same are also provided, including chemically modifying the algal oil with a saturated fatty acid under conditions favorable to the formation of a poly-estomer.Type: ApplicationFiled: July 27, 2009Publication date: May 13, 2010Inventors: Jeffrey A. Brown, Joseph Duimstra, Jason R. Wells
-
Patent number: 7695820Abstract: Aliphatic polyesters may be substituted at the alpha- and beta-positions. These aliphatic polyesters may have increased thermal, chemical and hydrolytic stability compared to conventional aliphatic polyesters. In addition, these aliphatic polyesters may be used as high performance lubricants, including lubricants for hard disk drives.Type: GrantFiled: May 31, 2006Date of Patent: April 13, 2010Assignee: The Board of Trustees of the University of IllinoisInventors: James Economy, Wei Xiao
-
Publication number: 20100069273Abstract: A method of improving the compatibility of an overbased detergent with other additives in a lubricating oil composition. The method includes the step of the using a detergent have a degree of carbonation of greater than 85%.Type: ApplicationFiled: April 10, 2008Publication date: March 18, 2010Inventor: Philip Skinner
-
Publication number: 20100048437Abstract: The present invention relates to a lubricating composition containing a dicarboxylic acid ester or a dicarboxylic acid amide as an antiwear agent. The invention further provides a lubricating composition suitable for the mechanical device such as an internal combustion engine.Type: ApplicationFiled: October 22, 2007Publication date: February 25, 2010Inventors: Jason R. Brown, Patrick E. Mosier, Paul E. Adams
-
Publication number: 20100035779Abstract: A grease which comprises a base oil containing at least 50% by mass of a diester compound having a total carbon number of 28 to 40 and represented by the general formula (I): R1OOC—(R2)n—COOR3 ??(I) wherein R1 and R3 each independently represent a C4 to C20 monovalent aliphatic hydrocarbon group, R2 represents a C1 to C20 divalent hydrocarbon group and n is 0 or 1. The grease is excellent in both low-temperature performance and high-temperature performance and has low oil separation tendency even under high centrifugal force (acceleration). In particular, when the grease is used in a rotational transmission device having a built-in one-way clutch, the grease can provide satisfactory clutch engagement property (intermeshing ability) at low temperatures and a prolonged bearing life at high temperatures and is less apt to cause oil separation under high centrifugal force.Type: ApplicationFiled: October 5, 2007Publication date: February 11, 2010Applicant: Idemitsu Kosan Co., LtdInventors: Yukitoshi Fujinami, Tahei Okada, Shinya Nakatani, Atsushi Yokouchi