With Nonhydrocarbon Organic Compound In Addition To Those Remaining From Overbasing Process (e.g., Antioxidants, Vi Improvers, Etc.) Patents (Class 508/398)
  • Patent number: 10807939
    Abstract: The present invention relates to a metal compound of calixarene not containing sulfur and dispersible in oil, which can be partially salified, or neutral, or basic or overbased, said calixarene having general formula (I) in which: a) R1, R2, R3 and R4 are independently selected from hydrogen, or a group containing carbon and hydrogen, or a group containing in addition to carbon and hydrogen also heteroatoms, provided that said heteroatoms are not sulfur; b) one of the two substituents R5 and R6 is hydrogen, while the other may be selected from hydrogen, or a linear or branched alkyl with a number of carbon atoms between 1 and 6, preferably methyl, ethyl, 1-propyl, 2-propyl, n-butyl, sec-butyl, more preferably methyl or ethyl; c) n is the number of units of the calixarene ring and is comprised in the range between 4 and 16, preferably between 5 and 12; said calixarene being characterized in that in at least one of the n units of the calixarene ring, at least one of the substituents R1, R2, R3 and R4 contains a
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: October 20, 2020
    Assignee: Eni S.P.A.
    Inventors: Marcello Notari, Alberto Roselli, Alessandro Casnati, Francesco Sansone, Alessandro Burlini
  • Patent number: 10683460
    Abstract: Provided herein are processes for ethylene oligomerization in the presence of an ionic liquid catalyst and a co-catalyst to produce a hydrocarbon product comprising C10-C55 oligomers.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: June 16, 2020
    Assignees: Chevron Oronite Company LLC, Chevron U.S.A. Inc.
    Inventors: Hye-Kyung Cho Timken, Bong-Kyu Chang, Curtis Bay Campbell, Andrew Michael Thomas, Mark Anthony Fernandez, Madeleine Sessions
  • Patent number: 10421922
    Abstract: A lubricating oil composition and method of operating a boosted internal combustion engine. The lubricating oil composition includes greater than 50 wt. % of a base oil, one or more overbased calcium-containing detergents having a TBN greater than 225 mg KOH/g and one or more magnesium-containing detergents. A total amount of calcium from the one or more overbased calcium-containing detergents is from 900 ppm to less than 2400 ppm by weight, and a total amount of magnesium from the one or more magnesium-containing detergents is from 50 ppm to 500 ppm by weight, both based on a total weight of the lubricating oil composition. The lubricating oil composition and the method of using it are effective to reduce low speed pre-ignition events in a boosted internal combustion engine lubricated with the lubricating oil composition.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: September 24, 2019
    Assignee: AFTON CHEMICAL CORPORATION
    Inventors: Kristin Fletcher, William Y. Lam, Kongsheng Yang, Jeremy Styer
  • Patent number: 10336959
    Abstract: A lubricating oil composition and method of operating a boosted internal combustion engine. The lubricating oil composition includes greater than 50 wt. % of a base oil, an overbased detergent having a TBN greater than 225 mg KOH/g and a low-based/neutral detergent having a TBN up to 175 mg KOH/g. A total amount of calcium from the overbased and low-based/neutral detergent is greater than 1100 ppm to less than 2400 ppm by weight based on a total weight of the lubricating oil composition. The lubricating oil composition and method may be effective to reduce low-speed pre-ignition events in a boosted internal combustion engine lubricated with the lubricating oil composition relative to commercially available lubricating oil compositions.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: July 2, 2019
    Assignee: AFTON CHEMICAL CORPORATION
    Inventors: Kristin Fletcher, William Y. Lam, Kongsheng Yang, Jeremy Styer
  • Patent number: 9914895
    Abstract: Provided are lubricant compositions comprising a hydrocarbon base oil and a polyoxybutylene polymer prepared by polymerizing butylene oxide with a monol initiator and having a number average molecular weight ranging from 800 g/mol to 1200 g/mol. The polyoxybutylene polymer functions as a highly active friction-modifier additive.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: March 13, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Martin R. Greaves, Evelyn A. Zaugg-Hoozemans
  • Patent number: 9617494
    Abstract: A method for improving deposit control, while maintaining or improving demulsibility performance, in an engine lubricated with a lubricating oil by using as the lubricating oil a formulated oil that has a particular phenate/carboxylate detergent mixture present in a particular amount in the formulated oil. A lubricating engine oil having a composition including a lubricating oil base stock as a major component; and a phenate/carboxylate detergent mixture as a minor component. The lubricating oils of this disclosure are useful in marine crankcase systems, in particular, marine system oil applications for two-stroke marine diesel engines.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: April 11, 2017
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Christopher J. Vander Neut, Kevin L. Crouthamel, John T. Fogarty
  • Patent number: 9546335
    Abstract: Lubricant compositions include: (a) one or more polyalkylene glycol base oils obtained by polymerization or copolymerization of alkylene oxides comprising from 3 to 8 carbon atoms, include at least one butylene oxide and (b) at least one detergent chosen from salicylates or phenates. The present disclosure also relates to: 1) use of a lubricant composition as engine oil, preferably as oil for the engines of petrol or diesel motor vehicles; 2) use of a group of additives for an engine lubricant comprising polyalkylene glycol bases obtained by polymerization or copolymerization of alkylene oxides comprising from 3 to 8 carbon atoms; and 3) use of at least one additive chosen from salicylates, phenates, dithiocarbamates, amine-based or phenol-based antioxidants, preferably from salicylates or phenates, for reducing the Noack volatility of the base oils of polyalkylene glycol type, obtained from alkylene oxides comprising from 3 to 8 carbon atoms.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: January 17, 2017
    Assignees: DOW GLOBAL TECHNOLOGIES LLC, TOTAL MARKETING SERVICES
    Inventors: Nicolas Obrecht, Julien Guerin, Nadjet Khelidj
  • Patent number: 9359576
    Abstract: A lubricating oil composition for an internal combustion engine containing a mixed base oil (AB) including a mixture of a base oil (A) being a mineral oil and/or a synthetic oil with a kinematic viscosity at 100° C. of not more than 3.5 mm2/s and a base oil (B) being a mineral oil and/or a synthetic oil with a kinematic viscosity at 100° C. of more than 3.5 mm2/s, wherein the ratio of the base oil (A) to the entire base oil is not more than 40 mass %, a calcium salicylate-based detergent (C) in 0.05 mass % to 0.5 mass % as a calcium amount based on the total amount of the composition, and a calcium sulfonate-based detergent (D) in 0.002 mass % to 0.2 mass % as a calcium amount based on the total amount of the composition.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: June 7, 2016
    Assignee: JX NIPPON OIL & ENERGY CORPORATION
    Inventor: Satoru Yoshida
  • Patent number: 8969265
    Abstract: A lubricating oil composition is disclosed which comprises (a) a major amount of an oil of lubricating viscosity; (b) one or more non-halogen-containing oil-soluble titanium complexes comprising at least one ligand comprising an anion of a carboxylic acid; (c) one or more dispersants; and (d) one or more detergents, wherein the lubricating oil composition is free of any zinc dialkyldithiophosphate.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: March 3, 2015
    Assignee: Chevron Oronite Company LLC
    Inventors: Gaurav Bhalla, Elaine S. Yamaguchi, Man Hon Tsang
  • Publication number: 20140309150
    Abstract: A lubricant composition and a method of lubricating off-road vehicles and/or machinery. The lubricant composition includes (i) a base oil, (ii) at least one ashless component (A) having the structure P(?S)(SR1)(OR2)(OR3), wherein R1, R2 and R3 are independently selected form the group consisting of alkyl, aryl, alkylaryl, cycloalkyl, alcohol, carboxylic acid and ester having 1 to 24 carbon atoms; and (iii) at least one component (B) being a metal dialkyl dithio phosphate salt. The total of ashless components (A) provides to the lubricant composition from 0.010 to 0.080 wt. % phosphorus based on the total weight of the lubricant composition and the total of components (B) provides to the lubricant composition from 0.010 to 0.080 wt. % phosphorus based on the total weight of the lubricant composition.
    Type: Application
    Filed: April 11, 2013
    Publication date: October 16, 2014
    Applicant: Afton Chemical Corporation
    Inventor: Jonathan W. BENDER
  • Patent number: 8709984
    Abstract: A lubricating oil composition is disclosed which comprises (a) a major amount of an oil of lubricating viscosity; (b) one or more non-halogen-containing oil-soluble titanium complexes comprising at least one ligand comprising an anion of a carboxylic acid; (c) one or more dispersants; and (d) one or more detergents, wherein the lubricating oil composition is free of any zinc dialkyldithiophosphate.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: April 29, 2014
    Assignee: Chevron Oronite Company LLC
    Inventors: Gaurav Bhalla, Elaine S. Yamaguchi, Man Hon Tsang
  • Publication number: 20140107000
    Abstract: The present invention relates to functional fluid compositions containing antioxidants, and specifically stable compositions containing antioxidants with limited solubility in and/or limited compatibility with the functional fluids with which they are used. In particular the present invention deals with functional fluids used in internal combustion engines, such as engine oils, and antioxidants containing a phenolic or benzoic group, where the antioxidant is present in the functional fluid composition at levels that would otherwise cause the composition to be unstable and/or hazy.
    Type: Application
    Filed: May 15, 2012
    Publication date: April 17, 2014
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Danielle N. Ivancic, James D. Burrington, Ewan E. Delbridge
  • Publication number: 20140096732
    Abstract: Provided are formulations, methods of making, and methods of using a diesel cylinder lubricating oil composition to achieve enhanced corrosive wear control on the cylinders of a 2-stroke diesel engine, wherein such lubricating oil composition comprises, among other things, an amount of one or more surfactant materials sufficient to provide substantially improved capacity to reduce or inhibit corrosive wear.
    Type: Application
    Filed: December 11, 2013
    Publication date: April 10, 2014
    Applicant: Chevron Oronite Technology B.V.
    Inventors: Cornelis Hendrikus Maria Boons, Marcel Verlinde, Dirk Jan Elzo Vrolijk
  • Patent number: 8114822
    Abstract: The present invention is directed to a soluble oil composition capable of forming stable emulsions exhibiting superior performance and possessing excellent utility as cutting oil for machines. The composition comprises an overbased alkaline earth metal sulfonate possessing anti-wear properties.
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: February 14, 2012
    Assignee: Chemtura Corporation
    Inventors: Michael T. Costello, Igor Riff
  • Publication number: 20110303182
    Abstract: Provided are formulations, methods of making, and methods of using a diesel cylinder lubricating oil composition to achieve enhanced corrosive wear control on the cylinders of a 2-stroke diesel engine, wherein such lubricating oil composition comprises, among other things, an amount of one or more surfactant materials sufficient to provide substantially improved capacity to reduce or inhibit corrosive wear.
    Type: Application
    Filed: August 16, 2011
    Publication date: December 15, 2011
    Inventors: Cornelis Hendrikus Maria Boons, Marcel Verlinde, Dirk Jan Elzo Vrolijk
  • Publication number: 20110143979
    Abstract: A lubricating oil composition is disclosed which comprises (a) a major amount of an oil of lubricating viscosity; (b) one or more non-halogen-containing oil-soluble titanium complexes comprising at least one ligand comprising an anion of a carboxylic acid; (c) one or more dispersants; and (d) one or more detergents, wherein the lubricating oil composition is free of any zinc dialkyldithiophosphate.
    Type: Application
    Filed: December 15, 2009
    Publication date: June 16, 2011
    Applicant: Chevron Oronite Company LLC
    Inventors: Gaurav Bhalla, Elaine S. Yamaguchi, Man Hon Tsang
  • Publication number: 20100167969
    Abstract: The present invention for a two-stroke marine engine, which can be used with both high-sulphur content fuel oils and low-sulphur content fuel oils. It relates to a cylinder lubricant having a BN determined according to the standard ASTM D-2896 greater than or equal to 40 milligrams of potash per gram of lubricant, comprising a lubricant base stock for marine engines and at least one overbased detergent based on alkali metals or alkaline-earth metals, characterized in that it also contains a quantity of 0.01% to 10% preferably 0.1% to 2% by weight relative to the total weight of the lubricant, of one or more (A) compounds chosen from the primary, secondary or tertiary monoalcohols the alkyl or alkylene chain of which is saturated or unsaturated, linear or branched and comprises at least 12 carbon atoms.
    Type: Application
    Filed: October 5, 2007
    Publication date: July 1, 2010
    Applicant: TOTAL RAFFINAGE MARKETING
    Inventors: Valérie Doyen, Denis Lancon, Jean-Marie Bourmaud, Florence Bredon
  • Patent number: 7417012
    Abstract: A lubricant additive gel formed by the gellation of two or more lubricant additives for the slow release of the additive components into a fluid. The lubricant additive gel slowly releases into its component lubricant additives when contacted with the fluid such as an oil thereby serving as a lubricant fluid such as an oil thereby.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: August 26, 2008
    Assignee: The Lubrizol Corporation
    Inventors: James D. Burrington, Bruce H. Grasser, Herman F. George, John R. Martin, John K. Pudelski, James P. Roski, Barbara L. Soukup, Melinda E. Bartlett
  • Publication number: 20080096777
    Abstract: The present invention is directed to a soluble oil composition capable of forming stable emulsions exhibiting superior performance and possessing excellent utility as cutting oil for machines. The composition comprises an overbased alkaline earth metal sulfonate possessing anti-wear properties.
    Type: Application
    Filed: October 24, 2006
    Publication date: April 24, 2008
    Inventors: Michael T. Costello, Igor Riff
  • Patent number: 6809069
    Abstract: A lubricating oil composition which comprises a lubricating base oil and a sulfonate, phenate or salicylate of an alkaline earth metal and has a friction coefficient between metals of 0.12 or higher at −20° C. as measured in accordance with a block-on-disk test. The friction coefficient between metals in the use of a metal belt can be kept high within a wide range of temperature from low temperatures to high temperatures. In particular, the lubricating oil exhibits a high performance of &mgr;=0.12 or higher at a low temperature of −20° C. in accordance with a block-on-disk test.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: October 26, 2004
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Junichi Deshimaru, Yutaka Takakura
  • Publication number: 20040014614
    Abstract: A lubricant additive gel formed by the gellation of two or more lubricant additives for the slow release of the additive components into a fluid. The lubricant additive gel slowly releases into its component lubricant additives when contacted with the fluid such as an oil thereby serving as a lubricant fluid such as an oil thereby.
    Type: Application
    Filed: July 16, 2002
    Publication date: January 22, 2004
    Inventors: James D. Burrington, Bruce H. Grasser, Herman F. George, John R. Martin, John K. Pudelski, James P. Roski, Barbara L. Soukup, Melinda E. Bartlett
  • Patent number: 6645922
    Abstract: A lubricating oil composition suitable for a two-stroke cross-head marine diesel engine. The lubricating oil composition comprises a base oil and an oil-soluble overbased metal detergent additive in the form of a complex wherein the basic material of the detergent is stabilized by more than one surfactant.
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: November 11, 2003
    Assignee: Infineum International Ltd.
    Inventors: Adrian Dunn, Laurent Chambard, Yolanda Owen
  • Publication number: 20030176298
    Abstract: A grease composition is produced by mixing a thickener of a calcium sulfonate complex and a second thickener component (polyurea, a metallic soap, a complex metallic soap or an N-substituted terephthalamic acid metal salt) into a base oil. This grease composition is excellent in heat resistance, load carrying capacity, water resistance and lubricating life.
    Type: Application
    Filed: October 15, 2002
    Publication date: September 18, 2003
    Applicant: NSK Ltd.
    Inventors: Shinya Nakatani, Hirotoshi Miyazima, Michita Hokao
  • Publication number: 20030158053
    Abstract: A lubricating oil composition which comprises a lubricating base oil and a sulfonate, phenate or salicylate of an alkaline earth metal and has a friction coefficient between metals of 0.12 or higher at −20° C. as measured in accordance with a block-on-disk test. The friction coefficient between metals in the use of a metal belt can be kept high within a wide range of temperature from low temperatures to high temperatures. In particular, the lubricating oil exhibits a high performance of &mgr;=0.12 or higher at a low temperature of −20° C. in accordance with a block-on-disk test.
    Type: Application
    Filed: October 24, 2002
    Publication date: August 21, 2003
    Inventors: Junichi Deshimaru, Yutaka Takakura
  • Patent number: 6596672
    Abstract: A low sulfate ash lubricating oil composition comprising an oil of lubricating viscosity, 0.1 to 3.0% of a calcium overbased acidic material, 0.1 to 2.0% of a magnesium overbased acidic material, and at least 0.5% of a combination of an alkylene-coupled hindered phenol antioxidant and an antioxidant other than an alkylene-coupled hindered phenol antioxidant, is particularly useful for lubricating stationary gas engines.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: July 22, 2003
    Assignee: The Lubrizol Corporation
    Inventors: Virginia A. Carrick, Ewa A. Bardasz, David E. Ripple
  • Publication number: 20030134756
    Abstract: A low sulfate ash lubricating oil composition comprising an oil of lubricating viscosity, 0.1 to 3.0% of a calcium overbased acidic material, 0.1 to 2.0% of a magnesium overbased acidic material, and at least 0.5% of a combination of an alkylene-coupled hindered phenol antioxidant and an antioxidant other than an alkylene-coupled hindered phenol antioxidant, is particularly useful for lubricating stationary gas engines.
    Type: Application
    Filed: May 28, 2002
    Publication date: July 17, 2003
    Inventors: Virginia A. Carrick, Ewa A. Bardasz, David E. Ripple
  • Patent number: 6528459
    Abstract: The invention concerns a lubricant for a two-stroke slow speed crosshead marine engine, powered with a fuel with sulfur content not less than 1%, consisting of a mixture of distillates used as lubricating bases containing x wt. % of dispersing additive of the succinimide type, y wt. % of an overbased detergent additive of the sulfonate type, and z wt. % of an overbased detergent additive of the phenate type. The invention is characterized in that x, y and z are selected in the intervals 0.5≦x≦2.5, 2.5≦y≦10 and 11≦z≦24.5 such that 15≦x+y+z≦36 and 1.5≦y/x≦13, the BN of the lubricant, determined according to the ASTM D-2896 standard, is not less than 70 mg KOH/g, and the speed at which sulfuric acid is neutralized by the lubricant, defined by the maximum speed of pressure increase of a closed chamber, with its walls covered with a film of said lubricant from 80 to 100 &mgr;m thick, maintained at 100° C.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: March 4, 2003
    Assignee: Elf Antar France
    Inventor: Jean-Philippe Roman
  • Patent number: 6479440
    Abstract: An alkaline earth alkylaryl sulfonate having a BN of at least 250, wherein the aryl radical is not phenol, wherein the alkyl chain is a linear chain that contains between 14 and 40 carbon atoms, and wherein the mole % of the aryl-sulfonate radical fixed on position 1 or 2 of the linear alkyl chain is between 13% and 30%. Such an alkaline earth alkylaryl sulfonate has improved compatibility, solubility, and foaming performances while having low color and no skin formation. The starting alkylate has a low iodine number, a very high level of monoalkylate, and, as a consequence, a high yield at the sulfonation step.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: November 12, 2002
    Assignee: Chevron Oronite S. A.
    Inventor: Jean-Louis Marie Le Coent
  • Publication number: 20020155958
    Abstract: A lubricating oil composition suitable for a two-stroke cross-head marine diesel engine. The lubricating oil composition comprises a base oil and an oil-soluble overbased metal detergent additive in the form of a complex wherein the basic material of the detergent is stabilized by more than one surfactant.
    Type: Application
    Filed: January 23, 2002
    Publication date: October 24, 2002
    Inventors: Adrian Dunn, Laurent Chambard, Yolanda Owen
  • Patent number: 6468946
    Abstract: This invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity and (A) a di or trihydrocarbyl phosphite, (B) at least one reaction product of a di or trihydrocarbyl phosphite and sulfur or a source of sulfur; at least one di or trihydrocarbyl monothiophosphate; or salt thereof, and (C) a salt of a hydrocarbyl phosphoric acid ester. In one embodiment, the lubricant composition contains less than 0.1% phosphorus or less than about 0.75% borated dispersant. This combination of phosphorus compounds provides antiwear and thermal stability to lubricants, even at low phosphorus levels. The lubricating compositions containing the combination of the phosphorus compounds has low corrosivity to copper and low odor as well.
    Type: Grant
    Filed: July 6, 1999
    Date of Patent: October 22, 2002
    Assignee: The Lubrizol Corporation
    Inventor: James N. Vinci
  • Publication number: 20020123434
    Abstract: A lubricating oil composition containing a base oil of lubricating viscosity, overbased sulfurized alkylphenate detergent or its calcium salt, an overbased alkylsulfonate detergent or its calcium salt, an ashless dispersant, and a zinc dialkyldithiophosphate and/or zinc diaryidithiophosphate is described. The lubricating oil composition provides improved heat stability and anti-wear performance in marine diesel engines operated under severe conditions where the cylinder liner temperature may reach 200 to 260° C.
    Type: Application
    Filed: November 14, 2001
    Publication date: September 5, 2002
    Inventors: Hiroyuki Nagamatsu, Shigeru Iwamoto, Hirokazu Fujita
  • Patent number: 6444625
    Abstract: An overbased calcium sulfonate detergent having a high viscosity is characterized by forming a clear solution in lubricating oil, having a TBN of about 400 or more, and having a viscosity of at least 180 mm2/s at 100° C. The high viscosity of the detergent allows for reduction in expensive high viscosity oil components of marine cylinder oils while maintaining selected TBN and viscosity parameters in the finished oil.
    Type: Grant
    Filed: September 6, 2000
    Date of Patent: September 3, 2002
    Assignee: Crompton Corporation
    Inventors: Ronald J. Muir, Theo I. Eliades, Leonard Matthews
  • Patent number: 6444624
    Abstract: An SAE OW-30 or 5W-30 or 5W-20 lubricant has a Noack volatility of less than 15, optionally an M-111 fuel economy of 1.5% or less, and a chlorine content of less than 100 ppm. The lubricant comprises a basestock containing from 0 to less than 10% Group I and/or Group II basestocks, a molybdenum additive providing not greater than 1000 ppm of molybdenum to the lubricant, a calcium detergent providing 10 or greater mmoles of surfactant per kilogram of lubricant, one or more other additives, and a viscosity modifier.
    Type: Grant
    Filed: September 20, 2000
    Date of Patent: September 3, 2002
    Inventors: Juliet V. Walker, Ian A. Bell
  • Patent number: 6423670
    Abstract: A heavy duty diesel engine lubricating oil composition having no more than 0.10 wt. % phosphorus comprises an ashless dispersant, a neutral calcium phenate, an overbased calcium or magnesium sulfonate, a metal dihydrocarbyldithiophosphate, and a phenolic or aminic antioxidant.
    Type: Grant
    Filed: March 14, 2001
    Date of Patent: July 23, 2002
    Assignee: Infineum International Ltd.
    Inventors: Christopher J. Locke, Isabel P. MacDonald
  • Publication number: 20020091069
    Abstract: A marine lubricating oil has a major amount of oil of lubricating viscosity; and a minor amount of an overbased, alkyl oxy benzene sulfonate having a TBN of at least 200. Between 40 wt. % and 80 wt. % of the alkyl group is attached at the 4-position and higher positions of the alkyl group. The oxy group can be hydroxy, methoxy, ethoxy, propoxy, butoxy, pentoxy, or hexoxy.
    Type: Application
    Filed: November 26, 1996
    Publication date: July 11, 2002
    Inventors: WILLIAM F. KING, RICHARD J. NELSON, STEVEN G. LOCKETT
  • Publication number: 20020035042
    Abstract: This invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity and (A) a di or trihydrocarbyl phosphite, (B) at least one reaction product of a di or trihydrocarbyl phosphite and sulfur or a source of sulfur; at least one di or trihydrocarbyl monothiophosphate; or salt thereof, and (C) a salt of a hydrocarbyl phosphoric acid ester. In one embodiment, the lubricant composition contains less than 0.1% phosphorus or less than about 0.75% borated dispersant. This combination of phosphorus compounds provides antiwear and thermal stability to lubricants, even at low phosphorus levels. The lubricating compositions containing the combination of the phosphorus compounds has low corrosivity to copper and low odor as well.
    Type: Application
    Filed: July 6, 1999
    Publication date: March 21, 2002
    Inventor: JAMES N. VINCI
  • Publication number: 20010036906
    Abstract: A heavy duty diesel engine lubricating oil composition having no more than 0.10 wt. % phosphorus comprises an ashless dispersant, a neutral calcium phenate, an overbased calcium or magnesium sulfonate, a metal dihydrocarbyldithiophosphate, and a phenolic or aminic antioxidant.
    Type: Application
    Filed: March 14, 2001
    Publication date: November 1, 2001
    Inventors: Christopher J. Locke, Isabel P. MacDonald
  • Patent number: 6306801
    Abstract: A lubricating oil composition having an excellent sludge formation inhibiting effect and being suitable for use as an engine oil is provided. The lubricating oil composition includes: a lubricating base oil, (A) 0.5 to 20% by mass of acylated bissuccinimide, (B) 0.05 to 0.3% by mass of zinc dithiophosphate in terms of the phosphorus content, and (C) 0.5 to 4.0% by mass of metallic detergent in terms of the sulfated ash content, based on the total mass of the composition.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: October 23, 2001
    Assignee: Nippon Mitsubishi Oil Corporation
    Inventors: Kazuhiro Yagishita, Yoko Matsuyama, Osamu Kurosawa
  • Publication number: 20010019999
    Abstract: A lubricating oil composition containing a base oil of lubricating viscosity, overbased sulfurized alkylphenate detergent or its calcium salt, an overbased alkylsulfonate detergent or its calcium salt, an ashless dispersant, and a zinc dialkyldithiophosphate and/or zinc diaryldithiophosphate is described. The lubricating oil composition provides improved heat stability and anti-wear performance in marine diesel engines operated under severe conditions where the cylinder liner temperature reach 200 to 260° C.
    Type: Application
    Filed: February 9, 2001
    Publication date: September 6, 2001
    Inventors: Hiroyuki Nagamatsu, Shigeru Iwamoto, Hirokazu Fujita
  • Patent number: 6268318
    Abstract: A.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: July 31, 2001
    Assignee: The Lubrizol Corporation
    Inventors: Allen J. Rolfes, Scot Eric Jaynes
  • Patent number: 6239084
    Abstract: Viscosity increase or drift control occurs in overbased detergents in storage over time and particularly at elevated temperatures. Viscosity drift is now controlled by the addition of additive amounts of a compound having an oleophilic group and further having secondary hydroxyl functionality to a detergent in storage prior to incorporation in a finished oil. Additions of this control agent in additive amounts of about 0.1 to 5.0%, and preferably 0.25 to 1.0%, by weight effected minimal viscosity drift of no more than about 10% where the detergent was stored at elevated temperatures of about 37° C. to 82° C. for about 4 weeks. The degree of viscosity drift control is proportional to the amount of control agent added to the overbased detergent. Preferred viscosity drift control agents are alkylated phenols such as dinonyl phenol, vegetable oils such as canola oil and jojoba oil, and hydroxy carboxylic acids such as 12-hydroxy stearic acid.
    Type: Grant
    Filed: July 21, 1999
    Date of Patent: May 29, 2001
    Assignee: Crompton Corporation
    Inventors: Theo I. Eliades, Ronald J. Muir, Leonard A. Matthews
  • Patent number: 6197075
    Abstract: An overbased magnesium composition deposit control additive for residual fuel oils and turbine fuels is an overbased magnesium sulfonate, carboxylate or phenate or mixtures thereof containing at least 14% and upwards to about 18% by weight of magnesium and containing a succinic anhydride and lower carboxylic acid co-promoter reaction product. The additive when added to fuel oils, such as residual fuel oils containing high asphaltenes, reduces, if not eliminates, magnesium/asphaltene deposits or sediment and the consequential plugging of filters. The additive also reduces, if not eliminates, vanadium caused corrosion in the turbine. The invention is also the process for preparing the overbased composition or deposit control additive, wherein the overbasing reaction incorporates the combination of a lower carboxylic acid, preferably acetic acid and a succinic anhydride, preferably dodecenyl succinic anhydride (DDSA), as the co-promoter.
    Type: Grant
    Filed: April 2, 1998
    Date of Patent: March 6, 2001
    Assignee: Crompton Corporation
    Inventors: Ronald J. Muir, Theo I. Eliades
  • Patent number: 6191081
    Abstract: A long life lubricating oil as evidenced by a reduction in viscosity increase, oxidation and nitration, comprises a major amount of a base oil of lubricating viscosity and a minor amount of a mixture of high TBN, medium TBN and low/neutral TBN detergents wherein metal salicylate detergent is at least one of the medium or low/neutral TBN detergents.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: February 20, 2001
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Stanley James Cartwright, James Walter Finch
  • Patent number: 6159912
    Abstract: A low overbased alkyl phenyl sulfonate prepared by the neutralization of sulfonic acid with a sulfurized high TBN calcium alkylphenate in the absence of chloride and in the absence of additional carboxylic acid.
    Type: Grant
    Filed: November 5, 1998
    Date of Patent: December 12, 2000
    Assignee: Chevron Chemical Company LLC
    Inventor: John McDonald
  • Patent number: 6140282
    Abstract: A long life lubricating oil as evidenced by a reduction in viscosity increase, oxidation and nitration, comprises a major amount of a base oil of lubricating viscosity and a minor amount of a mixture of high TBN, medium TBN and low/neutral TBN detergents wherein metal salicylate detergent is at least one of the medium or low/neutral TBN detergents.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: October 31, 2000
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Stanley James Cartwright, James Walter Finch
  • Patent number: 6140281
    Abstract: A lubricating oil of enhanced life as evidenced by a reduction in viscosity increase, nitration, and TBN depletion and equivalent or improved oxidation and TAN increase performance relative to commercial oils comprises a major amount of a base oil of lubricating viscosity and a minor amount of a mixture of one or more metal sulfonate(s) and/or phenate(s) and one or more metal salicylate(s) detergents, all such detergents used in the mixture being of the same or substantially similar Total Base Number (TBN).
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: October 31, 2000
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Alan Gary Blahey, James Walter Finch, Stanley James Cartwright
  • Patent number: 6127321
    Abstract: Hydrocarbyl substituted C.sub.4 to C.sub.10 monounsaturated dicarboxylic acid, anhydrides or esters, e.g. polyisobutenyl succinic anhydride, preferably made by reacting polymer of C.sub.2 to C.sub.10 monoolefin, preferably polyisobutylene, having a molecular weight of about 1500 to 5,000, preferably with a C.sub.4 to C.sub.10 monounsaturated acid, anhydride or ester, preferably maleic anhydride, such that there are 1.05 to 1.25 dicarboxylic acid producing moieties per molecule of said olefin polymer used in the reaction mixture. The resulting materials are useful per se as oil additives, or may be further reacted with amines, alcohols, amino alcohols, boric acid, etc. to form dispersants.
    Type: Grant
    Filed: September 5, 1991
    Date of Patent: October 3, 2000
    Assignee: Exxon Chemical Patents Inc
    Inventors: Jacob Emert, Robert D. Lundberg, Malcolm Waddoups
  • Patent number: 6100226
    Abstract: Improved grease compositions comprise a major amount of an oil based metal soap thickened base grease selected from the group consisting of simple metal soap thickened base grease, complex grease and failed complex grease, at least one sulfur and phosphorus containing composition, an overbased metal salt of an organic acid, a hydrocarbyl phosphite, and an aliphatic group substituted carboxylic acid or anhydride thereof, wherein the aliphatic group contains at least about 12 carbon atoms in amounts sufficient to increase the dropping point of the base grease, as measured by ASTM Procedure D-2265 by at least 15.degree. C., the phosphorus and sulfur compound being described in detail herein.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: August 8, 2000
    Assignee: The Lubrizol Corporation
    Inventors: Edward J. Konzman, Gary W. Wiggins
  • Patent number: 6063742
    Abstract: Improved grease compositions comprise a major amount of an oil based metal soap thickened base grease selected from the group consisting of simple metal soap thickened base grease, complex grease and failed complex grease, at least one metal salt of a sulfur and phosphorus containing acid, an overbased metal salt of an organic acid, a hydrocarbyl phosphite, and optionally, an aliphatic group substituted carboxylic acid, anhydride thereof and aliphatic group substituted lactone, wherein the aliphatic group contains at least about 8 carbon atoms in amounts sufficient to increase the dropping point of the base grease, as measured by ASTM Procedure D-2265 by at least 15.degree. C.
    Type: Grant
    Filed: March 1, 1999
    Date of Patent: May 16, 2000
    Assignee: The Lubrizol Corporation
    Inventor: Edward J. Konzman
  • Patent number: 6054419
    Abstract: Mixture of alkyl aryl sulfonates of superalkalinized alkaline earth metals comprising:(a) 50 to 85% by weight of a mono alkyl phenyl sulfonate with a C.sub.14 to C.sub.40 linear chain wherein the molar proportion of phenyl sulfonate substituent in position 1 or 2 is between 0 and 13%, and(b) 15 to 50% by weight of a heavy alkyl aryl sulfonate, wherein the aryl radical is phenyl or not, and the alkyl chains are either two linear alkyl chains with a total number of carbon atoms of 16 to 40, or one or a plurality of branched alkyl chains with on average a total number of carbon atoms of 15 to 48.Inasmuch as these mixtures contain less than 10% of linear mono alkyl phenyl sulfonate substituted in position 1 or 2 of the linear alkyl chain, they exhibit properties making them fit for use as detergent/dispersant additives for lubricating oils.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: April 25, 2000
    Assignee: Chevron Chemical Company LLC
    Inventor: Jean-Louis Le Coent