The Nitrogen Heterocyclic Ring Has Chalcogen Bonded Directly To Ring Carbon Adjacent To Ring Nitrogen (e.g., Succinimide Compounds, Etc.) Patents (Class 508/192)
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Patent number: 7902133Abstract: A lubricant composition comprising a dispersant and a base oil comprising less than about 3% by weight of tetracycloparaffins is disclosed. Methods of making and using the lubricant composition are also disclosed.Type: GrantFiled: July 14, 2006Date of Patent: March 8, 2011Assignee: Afton Chemical CorporationInventors: Mark T. Devlin, Tze-chi Jao
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Patent number: 7902130Abstract: The present invention provides a composition comprising the product prepared by hearing together: (a) a dispersant; and (b) a 1,3-dicarboxylic acid or 1,4-dicarboxylic acid of an aromatic compound, or a reactive equivalent thereof; and at least one of: (c) 2,5-dimercapto-1,3,4-thiadiazole or a hydrocarbyl-substituted 2,5-dimercapto-1,3,4-thiadiazole, or an oligomer thereof; (d) a borating agent; and (e) a phosphorus acid compound, or a reactive equivalent thereof, said heating being sufficient to provide a reaction product of (a), (b), and (c), (d), or (e), which is soluble in an oil of lubricating viscosity. The invention further provides a use for the composition.Type: GrantFiled: February 8, 2006Date of Patent: March 8, 2011Assignee: The Lubrizol CorporationInventors: Charles K. Baumanis, Mark R. Baker
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Publication number: 20110046029Abstract: The present disclosure relates to a lubricant composition comprising a first phosphorus compound, a second phosphorus compound, and a third phosphorus compound, wherein the first phosphorus compound is present in the lubricant composition in an amount to provide between about 120 and 350 ppm phosphorus. The lubricant composition may provide robust anti-wear and reduced pitting.Type: ApplicationFiled: July 21, 2010Publication date: February 24, 2011Inventor: Jeffrey L. Milner
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Patent number: 7888299Abstract: In its broadest concept, the present invention relates to an improved gear oil comprising: a) a base oil having a viscosity range of 4 to 32 cSt at 100° C.; b) a maximum level of hydrocarbyl polysulfide with a minimum level of active S species; c) a dihydrocarbyl dithiophosphate ester or salt; and d) a dihydrocarbyl (mono)thiophosphate amine salt, essentially free of phosphite.Type: GrantFiled: January 13, 2004Date of Patent: February 15, 2011Assignee: Afton Chemical Japan Corp.Inventors: Jeffrey L. Milner, Masao Seki, Roger M. Sheets, Kenji Yatsunami
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Patent number: 7879775Abstract: A lubricant composition comprising a phosphorus-containing compound and a base oil comprising less than about 3% by weight of tetracycloparaffins is disclosed. Methods of making and using the lubricant composition are also disclosed.Type: GrantFiled: July 14, 2006Date of Patent: February 1, 2011Assignee: Afton Chemical CorporationInventors: Mark T. Devlin, Tze-chi Jao, John T. Loper, Roger M. Sheets, Gregory H. Guinther
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Patent number: 7871966Abstract: The present invention provides a lubricating oil composition, which is capable to maintain sufficient low-friction (i.e. fuel saving performance) even when the lubricating oil is contaminated with soot and metal abrasion powder, which is excellent in durability with regard to anti-wear property and detergency, as well as oxidation stability, and which is capable to lower the ash content and to sufficiently maintain the performance of exhaust-gas after-treatment device for a long term. The lubricating oil composition comprises a lubricant base oil containing a base oil (X) of which % CP is 70 or more, % CA is 1 or less, viscosity index is 115 or more, and CCS viscosity at ?35° C. is 3000 mPa·s or less, wherein the lubricant base oil, to total mass of the composition, contains following components (A)˜(D): (A) 0.01˜10 mass % of ashless friction modifier; (B) 0.01˜0.2 mass % of phosphorus-containing anti-wear agent as phosphorous content; (C) 0.01˜1 mass % of metallic detergent as metal content; and (D) 0.01˜0.Type: GrantFiled: March 18, 2008Date of Patent: January 18, 2011Assignee: Nippon Oil CorporationInventor: Shigeki Matsui
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Patent number: 7871965Abstract: A gear oil additive composition and gear oil composition comprising a organic polysulfide having at least 30 wt % of a dialkyl polysulfide compound or mixture of dialkyl polysulfide compounds, a thiadiazole; and at least one ashless phosphorus-containing wear inhibitor compound is disclosed as having low yellow corrosion in axles and transmissions.Type: GrantFiled: August 7, 2008Date of Patent: January 18, 2011Assignee: Chevron Oronite Company LLCInventor: Juan Buitrago
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Patent number: 7867957Abstract: The lubricating oil composition of the invention comprises a lubricating base oil with a urea adduct value of no greater than 4% by mass and a viscosity index of 100 or higher, an ashless friction modifier at 0.01-10% by mass and a phosphorus-containing anti-wear agent at 0.01-0.2% by mass as phosphorus, based on the total amount of the composition.Type: GrantFiled: March 28, 2008Date of Patent: January 11, 2011Assignee: Nippon Oil CorporationInventors: Shigeki Matsui, Kazuo Tagawa
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Patent number: 7863227Abstract: A method for improving the seal integrity, oxidation resistance, thermal breakdown deposit protection of lubricating oil by combining a base stock and/or base oil with a high molecular weight aromatic amine and a low boron content dispersant.Type: GrantFiled: March 16, 2007Date of Patent: January 4, 2011Assignee: ExxonMobil Research and Engineering CompanyInventors: Arjun Kumar Goyal, L. Oscar Farng, Andrew R. LaFountain
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Patent number: 7851418Abstract: The present invention is directed to ashless detergents comprising the products resulting from the reaction of a salicylic acid, organic group substituted salicylic acid, sulfonic acid or organic groups substituted sulfur acid with thiadiazole or organic group substituted thiadiazole or an alkyl primary or secondary amine, and to formulated lubricating oils containing said ashless detergents.Type: GrantFiled: June 1, 2006Date of Patent: December 14, 2010Assignee: ExxonMobil Research and Engineering CompanyInventors: Jacob Joseph Habeeb, William H. Buck, Douglas Edward Deckman, William L. Maxwell
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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: 7833953Abstract: A lubricant composition comprising a dispersant and a base oil comprising more than about 1.6% by weight of tetracycloparaffins is disclosed. Methods of making and using the lubricant composition are also disclosed.Type: GrantFiled: August 28, 2006Date of Patent: November 16, 2010Assignee: Afton Chemical CorporationInventors: Mark T. Devlin, Tze-chi Jao
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Patent number: 7820599Abstract: A lubricating oil composition includes lubricating oil base oil, an organic molybdenum compound (A), zinc dialkyl dithiophosphate (B), at least one compound (C) selected from calcium sulfonate, calcium phenate, and magnesium sulfonate and having a base number of 230 mgKOH/g or more, and an ashless dispersant containing boron or a mixture of an ashless dispersant containing boron and an ashless dispersant containing no boron (D) in predetermined ratios, in which: a mass ratio (P/Mo) of the P content to the Mo content in the composition is 1.5 or more; a mass ratio (CaMg/Mo) of a total content of the Ca and Mg derived from the component (C) to the Mo content in the composition is 3 or more; and a mass ratio (B/N) between B and N derived from the component (D) in the composition is 0.5 or more.Type: GrantFiled: May 25, 2006Date of Patent: October 26, 2010Assignee: Idemitsu Kosan Co., Ltd.Inventor: Moritsugu Kasai
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Patent number: 7820600Abstract: The present invention is directed to a lubricant composition comprising GLT base stock with an ashless detergent to improve air release properties. The ashless detergents comprise the products resulting from the reaction of a salicylic acid, organic group substituted salicylic acid, sulfonic acid or organic groups substituted sulfur acid with thiadiazole or organic group substituted thiadiazole or an alkyl primary or secondary amine.Type: GrantFiled: July 28, 2006Date of Patent: October 26, 2010Assignee: ExxonMobil Research and Engineering CompanyInventors: Jacob J. Habeeb, David J. Baillargeon, Douglas E. Deckman
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Publication number: 20100218740Abstract: A lubricating oil composition is used in an internal combustion engine that uses a fuel containing at least one fat and oil selected from a group consisting of natural fat and oil, hydrotreated natural fat and oil, transesterified natural fat and oil and hydrotreated transesterified natural fat and oil. A polyol ester having a kinematic viscosity in the range of 3 to 8 mm2/s at 100 degrees C and/or a polybasic acid ester having a kinematic viscosity in the range of 3 to 8 mm2/s at 100 degrees C is mixed in an amount in the range of 5 to 30 mass % of a total amount of the lubricating oil composition as a base oil of lubricating oil.Type: ApplicationFiled: October 17, 2008Publication date: September 2, 2010Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Kazuhiro Teshima, Motoharu Ishikawa
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Patent number: 7772167Abstract: A fully formulated lubricating oil, lubricated surface, and lubricant additive concentrates for lubricants providing reduced sludge formation. The fully formulated lubricating oil composition has therein at least one succinimide dispersant, a metal containing detergent, at least one antioxidant, and a hydrocarbon soluble titanium compound. The lubricating oil has improved sludge reducing properties compared to the same lubricating oil composition devoid of the titanium compound.Type: GrantFiled: December 6, 2006Date of Patent: August 10, 2010Assignee: Afton Chemical CorporationInventor: Gregory H. Guinther
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Patent number: 7749948Abstract: Lubricant compositions comprising (a) an oil of lubricating viscosity; and (b) at least one non-metal-containing additive, comprising a nitrogen-containing dispersant having a total base number of at least about 90 are useful for lubricating an internal combustion engine. The lubricants have less than 1.0% sulfated ash and a total base number of at least about 8.5, and at least 30% of the total base number of the composition is provided by non-metal-containing additives. The lubricants exhibit a high TBN without deterioration of elastomeric seals.Type: GrantFiled: February 27, 2007Date of Patent: July 6, 2010Assignee: The Lubrizol CorporationInventors: Ewa Bardasz, Virginia A. Carrick, John K. Pudelski, Renee A. Eveland, Douglas M. Barr, Matthew D. Gieselman
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Publication number: 20100144567Abstract: A lubricating oil composition used in an internal combustion engine contains lubricating base oil; a disulfide compound as a component (A), a no-boron-containing ashless dispersant as a component (B), and a boron-containing ashless dispersant as a component (C). The disulfide compound as the component (A) is represented by the following formula (1) and/or the following formula (2). The no-boron-containing ashless dispersant as the component (B) has in its side chain: an alkyl group having a number average molecular weight of 500 to 3,000; or an alkenyl group having a number average molecular weight of 500 to 3,000. The boron-containing ashless dispersant as the component (C) has in its side chain: an alkyl group having a number average molecular weight of 500 to 4,000; or an alkenyl group having a number average molecular weight of 500 to 4,000.Type: ApplicationFiled: May 21, 2008Publication date: June 10, 2010Applicant: IDEMITSU KOSAN CO., LTD.Inventor: Koki Ito
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Publication number: 20100137172Abstract: A lubricating oil composition according to the present invention is used in an internal combustion engine. The internal combustion engine uses a fuel that contains at least one fat and oil selected from a group consisting of natural fat and oil, hydrotreated natural fat and oil, transesterified natural fat and oil and hydrotreated transesterified natural fat and oil. The lubricating oil composition contains a component (A) that is an alkaline earth metal-based detergent. The component (A) is contained by a content of more than 0.35 mass % and 2 mass % or less of the total amount of the composition in terms of alkaline earth metal.Type: ApplicationFiled: March 24, 2008Publication date: June 3, 2010Applicant: Idemitsu Kosan Co., Ltd.Inventor: Hideki Kamano
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Publication number: 20100137173Abstract: The present disclosure relates to a compound of the formula I or a tribologically acceptable salt, solvate, hydrate, or proadditive thereof, wherein R1, R2 and R4 are as defined herein. Such novel pyrrolidine, or succinimide, derivatives may be useful as friction modifiers in lubricant compositions. This disclosure also relates to a method of using such friction modifier compounds in lubricating fluid formulations to lubricate machine parts, including gear, axle, engine, and transmission parts, and to lubricant compositions containing such friction modifier compounds.Type: ApplicationFiled: June 16, 2008Publication date: June 3, 2010Inventors: Roger Sheets, Nubar Ozbalik
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Publication number: 20100113313Abstract: A lubricating oil composition used in an internal combustion engine is provided. The internal combusting engine uses a fuel that contains at least one fat and oil selected from a group consisting of natural fat and oil, hydrotreated natural fat and oil, transesterified natural fat, and oil and hydrotreated transesterified natural fat and oil. The lubricating oil composition includes: base oil of lubricating oil; a component (A) containing a boron derivative of an alkyl or alkenyl-substituted succinimide compound having a number average molecular weight of 200 to 5000; and a component (B) containing an alkaline earth metal-based detergent. The component (A) is contained by 0.01 to 0.2 mass % in terms of boron of a total amount of the composition while the component (B) is contained by 0.35 mass % or less in terms of the alkaline earth metal of the total amount of the composition.Type: ApplicationFiled: March 24, 2008Publication date: May 6, 2010Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Kazuhiro Teshima, Hideki Kamano
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Publication number: 20100099588Abstract: A lubricant composition of an oil, a dispersant viscosity modifier of a poly(meth)acrylate copolymer having a nitrogen-containing monomer in an amount to provide at least about 0.4 percent by weight nitrogen to the copolymer, and a succinimide dispersant prepared in the substantial absence of chlorine gives good performance as a transmission fluid.Type: ApplicationFiled: January 22, 2008Publication date: April 22, 2010Inventors: Calvin A. James, Craig D. Tipton, William D. Abraham, Edward J. Konzman
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Patent number: 7687444Abstract: A lubricating oil composition having a TBN in the range of 5 to 55 mg KOH/g and containing a major amount of a base oil of lubricating viscosity and a) 0.19 to 2.10 wt %, based on the total amount of the lubricating oil composition, of an overbased calcium carboxylate having a TBN of 100 mg KOH/g or more, wherein the wt % is expressed in terms of the calcium content; b) 0.002 to 0.06 wt %, based on the total amount of the lubricating oil composition, of a bis-succinimide compound, wherein the wt % is expressed in terms of the nitrogen content; and c) 0.007 to 0.15 wt %, based on the total amount of the lubricating oil composition, of a zinc dialkyldithiophosphate having a secondary alkyl group, wherein the wt % is expressed in terms of the phosphorus content.Type: GrantFiled: December 20, 2005Date of Patent: March 30, 2010Assignee: Chevron Japan Ltd.Inventor: Hiroyuki Nagamatsu
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Publication number: 20100075875Abstract: A lubricating oil composition for an internal combustion engine. The lubricating oil composition includes: (A1) a lubricant base oil as a main component having a kinematic viscosity at 100 degree C. being 1 to 8 mm2/s, pour point being ?15 degree C. or less, aniline point being 100 degree C. or more, paraffinic content in saturates being 40 mass % or more, monocyclic naphthenic content being 25 mass % or less, bicyclic to hexacyclic naphthenic content being 35 mass % or less, iodine number being 2 or less, and ratio of tertiary carbon to the total carbon atoms composing the (A1) being 6.3% or more. The total mass of the composition is: (B) 0.005 to 0.5 mass % of a metallic detergent as metal content; (C1) 0.005 to 0.2 mass % of a boron-containing succinimide ashless dispersant as boron content; and (D) 0.005 to 0.2 mass % of a metal salt of phosphorus-containing acid as phosphorus content.Type: ApplicationFiled: December 5, 2007Publication date: March 25, 2010Inventor: Akira Yaguchi
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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: 7655133Abstract: An ashless lubricating oil, comprising a base oil having greater than 90 wt % saturates, less than 10 wt % aromatics, a viscosity index greater than 130, low sulfur, and a sequential number of carbon atoms. The lubricating oil has a VI between 155 and 300, greater than 680 minutes in a rotary pressure vessel oxidation test, and a kinematic viscosity at 40° C. from 19.8 to 748 cSt. An ashless paper machine oil, comprising a base oil having a sequential number of carbon atoms, wherein the oil has a defined viscosity index and high oxidation stability. Also, an ashless lubricating oil, comprising a base oil having a viscosity index greater than 150, wherein the base oil is made from a blend of petroleum-based wax and Fischer-Tropsch derived wax.Type: GrantFiled: November 25, 2008Date of Patent: February 2, 2010Assignee: Chevron U.S.A. Inc.Inventors: William Loh, John M. Rosenbaum, Nancy J. Bertrand, Patricia LeMay, Rawls H. Frazier, Mark E. Okazaki
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Patent number: 7651985Abstract: A method for improving the oxidation stability of an ashless hydraulic fluid or an ashless paper machine oil, comprising: a. selecting a base oil having greater than 90 wt % saturates, less than 10 wt % aromatics, a base oil viscosity index greater than 120, less than 0.03 wt % sulfur, a sequential number of carbon atoms, greater than 35 wt % total molecules with cycloparaffinic functionality, and a ratio of molecules with monocycloparaffinic functionality to molecules with multicycloparaffinic functionality greater than 2.1; and b. replacing a portion of an original base oil in the ashless oil with the selected base oil to produce an improved ashless lubricating oil; wherein the improved ashless lubricating oil has a result in the rotary pressure vessel oxidation test that is at least 50 minutes greater than the result in the rotary pressure oxidation test of the ashless hydraulic fluid or ashless paper machine oil.Type: GrantFiled: August 6, 2008Date of Patent: January 26, 2010Assignee: Chevron U.S.A. Inc.Inventors: William Loh, John M. Rosenbaum, Nancy J. Bertrand, Patricia LeMay, Rawls Frazier, Mark E. Okazaki
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Product of Amines with Hydroxy Acid as Friction Modifiers Suitable for Automatic Transmission Fluids
Publication number: 20090312207Abstract: Compositions comprising an oil of lubricating viscosity; an amide represented by the formula R1R2N—C(O)R3 wherein R1 and R2 are hydrocarbyl groups of at least 6 carbon atoms and R3 is a hydroxyalkyl group of 1 to 6 carbon atoms or a group formed by the condensation of said hydroxyalkyl group, through a hydroxyl group thereof, with an acylating agent; a nitrogen-containing dispersant; and a phosphorus-containing compound are suitable for lubricating a transmission.Type: ApplicationFiled: October 11, 2006Publication date: December 17, 2009Inventors: Stuart L. Bartley, Shreyasi Lahiri, Mark R. Baker, Craig D. Tipton -
Publication number: 20090298727Abstract: A lubricant composition for a final drive axle oil comprising an oil of lubricating viscosity, one or more dispersants and one or more phosphorus compounds wherein the kinematic viscosity of the lubricant composition at 100° C. is greater than 10 mm2/s and wherein the amount by weight of the dispersant is greater than the amount by weight of the phosphorus compounds and any sulfur compounds which may optionally be present.Type: ApplicationFiled: December 15, 2006Publication date: December 3, 2009Applicant: The Lubrizol CorporationInventors: Craig D. Tipton, Thomas A. Tagliamonte
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Patent number: 7618928Abstract: An oil-soluble lubricating oil additive composition comprising (I) an oil-soluble lubricating oil additive prepared by the process which comprises reacting a copolymer, with at least one ether compound and with at least one aromatic amine and (II) at least one ashless dispersant other than the lubricating oil additive of (I), the method of making the same, a lubricating oil composition comprising the lubricating oil additive composition and a major amount of an oil of lubricating viscosity, and a method of making the same.Type: GrantFiled: August 31, 2005Date of Patent: November 17, 2009Assignee: Chevron Oronite Company LLCInventors: Casey D. Stokes, Willem Van Dam
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Publication number: 20090275491Abstract: The present invention provides a lubricating oil composition with excellent torque capacity and shifting characteristics suitable for use as automatic or continuously variable transmission fluids, which composition comprises a base oil and, on the basis of the total mass of the composition, (A) a sulfonate detergent in an amount of 0.01 to 0.3 percent by mass in terms of metal (MeA); (B) a salicylate detergent in an amount of 0 or more than 0 and 0.1 percent by mass or less, in terms of metal (MeB); and (C) a boron-containing succinimide type ashless dispersant in an amount of 0.001 to 0.1 percent by mass in terms of boron (BoC); (MeB)/(MeA) being 0, or greater than 0 and 1.5 or less, and (MeA)/(BoC) being from 0.001 to 20.Type: ApplicationFiled: November 1, 2006Publication date: November 5, 2009Applicant: NIPPON OIL CORPORATIONInventors: Hitoshi Komatsubara, Masato Takahashi, Shigeki Matsui
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Patent number: 7612025Abstract: Low sulfur lubricating oil compositions are provided which are extremely excellent in anti-wear properties for the valve train system of an internal combustion engine and are also excellent in long-drain properties, and thus is suitable for used in an internal combustion engine. The lubricating oil compositions comprises a lubricating base oil, (A) a specific alkali metal or alkaline earth metal salicylate and/or an overbased or basic salt of the salicylate, (B) a phosphorus-containing anti-wear agent, (C) an ashless dispersant, and (D) an ashless anti-oxidant, as the essential components, and contains boron in an amount of 0.01 to 0.15 percent by mass and sulfur in a total amount of 0.3 percent by mass or less, based on the total mass of the composition.Type: GrantFiled: August 3, 2006Date of Patent: November 3, 2009Assignee: Nippon Oil CorporationInventors: Isao Kurihara, Kazuhiro Yagishita, Shouzaburou Konishi
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Patent number: 7585820Abstract: The present invention is directed to a low sulfur, low sulfated ash and low phosphorus lubricating oil composition for low emission heavy duty diesel engines comprising (a) a major amount of an oil of lubricating viscosity and (b) a detergent composition comprising a (i) a mixture of a metal salt of an alkyl hydroxyaromatic carboxylic acid and a metal salt of an alkyl phenol, and (ii) a metal salt of a Mannich condensation product of an alkyl phenol. The present invention is also directed to a low sulfur, low sulfated ash and low phosphorus lubricating oil concentrate comprising (a) an oil of lubricating viscosity and (b) a detergent composition comprising a (i) a mixture of a metal salt of an alkyl hydroxyaromatic carboxylic acid and a metal salt of an alkyl phenol, and (ii) a metal salt of a Mannich condensation product of an alkyl phenol.Type: GrantFiled: July 29, 2005Date of Patent: September 8, 2009Assignee: Chevron Oronite Technology B.V.Inventor: Peter Kleijwegt
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Patent number: 7569524Abstract: A process for making an ashless hydraulic fluid or paper machine oil comprising a) hydroisomerization dewaxing, b) fractionating, c) selecting a fraction having a very high VI, and a high level of molecules with cycloparaffinic functionality, and d) blending the fraction with an ashless antioxidant. A process for making ashless paper machine oil, comprising: a. selecting two lubricating base oils both having a consecutive number of carbon atoms, greater than 35 wt % total molecules with cycloparaffinic functionality, and a viscosity index greater than 150; b. blending the two lubricating base oils with an ashless antioxidant additive concentrate and no viscosity index improver to make an ashless paper machine oil; wherein the ashless paper machine oil has a result of greater than 680 minutes in the rotary pressure vessel oxidation test.Type: GrantFiled: August 6, 2008Date of Patent: August 4, 2009Assignee: Chevron U.S.A. Inc.Inventors: William Loh, John M. Rosenbaum, Nancy J. Bertrand, Patricia LeMay, Rawls Frazier, Mark E. Okazaki
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Patent number: 7547666Abstract: An ashless hydraulic fluid or paper machine oil having a VI between 155 and 300, a RPVOT greater than 680 minutes, and a kinematic viscosity at 40° C. from 19.8 cSt to 748 cSt. An ashless hydraulic fluid or paper machine oil having a high VI and high RPVOT comprising: a) a Group III base oil with a sequential number of carbon atoms, and defined cycloparaffin composition or low traction coefficient, b) an ashless antioxidant additive concentrate, and c) low amount of VI improver. A process for making an ashless hydraulic fluid or paper machine oil comprising a) hydroisomerization dewaxing, b) fractionating, c) selecting a fraction having a very high VI, and a high level of molecules with cycloparaffinic functionality or a low traction coefficient, and d) blending the fraction with an ashless antioxidant. Also, a method of improving the oxidation stability of an ashless hydraulic fluid or paper machine oil.Type: GrantFiled: December 21, 2005Date of Patent: June 16, 2009Assignee: Chevron U.S.A. Inc.Inventors: William Loh, John Rosenbaum, Nancy J. Bertrand, Patricia LeMay, Rawls Frazier, Mark E. Okazaki
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Publication number: 20090082234Abstract: There is disclosed an additive composition comprising (a) a highly reactive polyisobutenyl succinimide dispersant, (b) a polyisobutenyl succinimide dispersant, and (c) a grafted olefin copolymer viscosity index improver.Type: ApplicationFiled: September 21, 2007Publication date: March 26, 2009Inventors: Cathy C. DEVLIN, Charles A. Passut, Peter Carress
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Publication number: 20090018038Abstract: A lubricating oil composition for automatic transmissions wherein the mass ratio of phosphorus:calcium:boron:sulfur determined by elemental analysis is 1:(0.1 to 2):(0.06 to 2):(0.2 to 20), the concentration of phosphorus is from 0.01 to 0.06 percent by mass, the concentration of the sulfur derived from a base oil is from 0 to 0.1 percent by mass, and the concentration of the sulfur derived from sulfur-based additives is from 0.01 to 0.15 percent by mass, based on the total amount of the composition. The lubricating oil composition can prevent the occurrence of scratch phenomenon even over a long period of time when used in a metal belt type continuously variable automatic transmission.Type: ApplicationFiled: September 19, 2008Publication date: January 15, 2009Applicant: NIPPON OIL CORPORATIONInventor: Naozumi ARIMOTO
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Publication number: 20090011963Abstract: The lubricant system of the present disclosure comprises an engine oil comprising at least one additive chosen from a viscosity index improver, a dispersant, a detergent, an antioxidant, and an antiwear compound; a transmission fluid comprising at least one additive chosen from a dispersant and a pour-point depressant; and a gear oil comprising at least one additive chosen from a viscosity index improver, an extreme pressure agent, and a dispersant. There is also disclosed a method of improving fuel economy of a vehicle comprising providing to the vehicle the disclosed lubricant system.Type: ApplicationFiled: July 6, 2007Publication date: January 8, 2009Inventors: Gregory P. ANDERSON, David J. Degonia
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Patent number: 7371710Abstract: Lubricating oil compositions particularly suitable for automatic transmissions comprising a lubricating base oil, (A) a boron-containing ashless dispersant in an amount of 0.02 to 0.1 percent by mass in terms of boron, based on the total mass of the composition, (B) an alkaline earth metal-based detergent with a base number of 0 to 500 mgKOH/g in an amount of 0.01 percent by mass or more in terms of alkaline earth metal, based on the total mass of the composition, and (C) an alkali metal borate or a hydrate thereof and having excellent anti-wear properties and improved fatigue life by inhibiting pitching.Type: GrantFiled: March 10, 2004Date of Patent: May 13, 2008Assignee: Nippon Oil CorporationInventor: Eitaro Morita
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Publication number: 20080051305Abstract: A lubricant composition comprising a dispersant and a base oil comprising more than about 1.6% by weight of tetracycloparaffins is disclosed. Methods of making and using the lubricant composition are also disclosed.Type: ApplicationFiled: August 28, 2006Publication date: February 28, 2008Inventors: Mark T. Devlin, Tze-chi Jao
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Publication number: 20080015125Abstract: A lubricant composition comprising a phosphorus-containing compound and a base oil comprising less than about 3% by weight of tetracycloparaffins is disclosed. Methods of making and using the lubricant composition are also disclosed.Type: ApplicationFiled: July 14, 2006Publication date: January 17, 2008Inventors: Mark T. Devlin, Tze-chi Jao, John T. Loper, Roger M. Sheets, Gregory H. Guinther
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Publication number: 20080015124Abstract: A lubricant composition comprising a dispersant and a base oil comprising less than about 3% by weight of tetracycloparaffins is disclosed. Methods of making and using the lubricant composition are also disclosed.Type: ApplicationFiled: July 14, 2006Publication date: January 17, 2008Inventors: Mark T. Devlin, Tze-chi Jao
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Patent number: 7285516Abstract: Lubricating oils containing an additive formulation including at least one sulphonate, saligenin and salixarate detergent provide improved wear performance and decreased sulphur and phosphorus emissions.Type: GrantFiled: November 25, 2002Date of Patent: October 23, 2007Assignee: The Lubrizol CorporationInventors: Virginia A. Carrick, William D. Abraham, Gordon D. Lamb, R. Ian Wilby, James P Roski
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Publication number: 20070232504Abstract: A method for improving the seal integrity, oxidation resistance, thermal breakdown deposit protection of lubricating oil by combining a base stock and/or base oil with a high molecular weight aromatic amine and a low boron content dispersant.Type: ApplicationFiled: March 16, 2007Publication date: October 4, 2007Inventors: Arjun Kumar Goyal, L. Oscar Farng, Andrew R. LaFountain
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Publication number: 20070232503Abstract: The present invention is directed to a method for controlling soot induced viscosity increase in diesel engines, by using as the diesel engine lubricant an oil formulation comprising a base oil containing about 10 to 80 wt % GTL base stock and/or base oil and/or hydrodewaxed or hydroisomerized/catalytic (or solvent) dewaxed base stock and/or base oil in combination with 20 to 90 wt % conventional Group I petroleum derived base oil, said base oil being further combined with a polymeric viscosity modifier, and to the lubricating oil which effects such control over soot induced viscosity increase.Type: ApplicationFiled: March 13, 2007Publication date: October 4, 2007Inventors: Heather M. Haigh, Brandon T. Weldon, Jason Z. Gao
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Publication number: 20070203031Abstract: Lubricant compositions comprising (a) an oil of lubricating viscosity; and (b) at least one non-metal-containing additive, comprising a nitrogen-containing dispersant having a total base number of at least about 90 are useful for lubricating an internal combustion engine. The lubricants have less than 1.0% sulfated ash and a total base number of at least about 8.5, and at least 30% of the total base number of the composition is provided by non-metal-containing additives. The lubricants exhibit a high TBN without deterioration of elastomeric seals.Type: ApplicationFiled: February 27, 2007Publication date: August 30, 2007Inventors: Ewa Bardasz, Virginia A. Carrick, John K. Pudelski, Renee A. Eveland, Douglas M. Barr, Matthew D. Gieselman
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Patent number: 7026273Abstract: A crankcase lubricating oil composition comprises an oil of lubricating viscosity, in a major amount, and, in respective minor amounts, a boron-containing additive and one or more co-additives, wherein the lubricating oil composition has greater than 200 ppm by mass of boron, less than 600 ppm by mass of phosphorus and less than 4000 ppm by mass of sulfur, based on the mass of the oil composition. Such compositions demonstrate provide improved wear performance.Type: GrantFiled: October 22, 2002Date of Patent: April 11, 2006Assignee: Infineum International LimitedInventors: Robert Robson, Roger W. Glyde, Alisdair J. Brown, Simon S. M. Chung, Stephen Arrowsmith
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Patent number: 6916766Abstract: A combination of an ashless dispersant comprising the reaction product of a succinic anhydride and a polyamine and an ashless rust inhibitor comprising a mixture of a succinic anhydride and a oxime substituted aromatic compound in a lubricant base stock along with a poly alkylene alcohol demulsifier provides a circulating oil composition having good demulsibility, deposit control and rust inhibition.Type: GrantFiled: January 28, 2003Date of Patent: July 12, 2005Assignee: ExxonMobil Research and Engineering CompanyInventors: Kevin Buzdygon, Angela Stefana Galiano-Roth
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Patent number: 6906011Abstract: This invention is directed to a new low molecular weight copolymer (The PIB/UAR copolymer) that may be prepared by reacting a low molecular weight polyisobutene (PIB) having less than about 32 carbon atoms with an unsaturated acidic reagent in the presence of a free radical initiator. No chain transfer agent is required to prepare the low molecular weight PIB/UAR copolymer. The PIB/UAR copolymer may be useful as is, or as an intermediate for (1) polysuccinimides, (2) detergents or dispersants for lube oil or fuels, (3) pour point depressants and (4) surface sizing agents for paper. The PIB/UAR copolymer may be used by itself or as the ester, amide, imide or metal salt derivative of the PIB/UAR copolymer. The PIB/UAR copolymer may be liquid at ambient temperature.Type: GrantFiled: November 9, 2001Date of Patent: June 14, 2005Assignee: Chevron Oronite Company LLCInventors: James J. Harrison, William R. Ruhe, Jr., Kenneth D. Nelson
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Patent number: RE39648Abstract: Thus, the instant invention is directed toward an oil for diesel engines comprising an admixture of (A) a major amount of an oil of lubricating viscosity, (B) at least 4 mass % dispersant, (C) at least 0.3 mass % of a metal phenate, (D) less than 0.1 mass % friction modifier, (E) less than 0.3 mass % of ashless sulfurized phenols and, (F) less than 0.12 mass % neutral calcium sulfonate.Type: GrantFiled: July 24, 2001Date of Patent: May 22, 2007Assignee: Infineum USA L.P.Inventors: Edward Francis Outten, Andrew James Dalziel Ritchie