Organic Nitrogen Compound Salt Of Phosphorus Acid, Or Organic Nitrogen Compound Is Present With Phosphorus Acid Patents (Class 508/436)
  • Patent number: 10132375
    Abstract: A friction material for a clutch pad comprising: a plurality of fibers; and, a filler material including at least 0.1% and at most 100% silica rich carrier particles by weight based on total weight of the filler; the silica rich carrier particles having: a median particle size of at least 0.1 ?m and at most 50 ?m; and, a median pore diameter of at least 0.1 and at most 10 ?m.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: November 20, 2018
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Rashid Farahati, Murat Bakan
  • Patent number: 10119091
    Abstract: A lubricant composition comprising an oil of lubricating viscosity and an N-hydrocarbyl-substituted aminoester, wherein the N-hydrocarbyl substituent comprises a hydrocarbyl group of at least 3 carbons atoms, with a branch at the 1 or 2 position of the hydrocarbyl chain, provides good iron and copper corrosion performance in driveline or gear applications.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: November 6, 2018
    Assignee: The Lubrizol Corporation
    Inventors: Daniel J. Saccomando, Ewan E. Delbridge, William R. S. Barton
  • Patent number: 9169454
    Abstract: A lubricating oil formulation particularly useful in an internal combustion engine, comprising hydrofine paraffinic distillate from 10-30% v/v, castor/linseed oil from 5 to 40% v/v, aliphatic alcohol from 10-20% v/v and chlorinated paraffin from 10-30% v/v.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: October 27, 2015
    Inventor: Sabatino Nacson
  • Patent number: 9139795
    Abstract: A biodegradable lubricating oil composition includes (A) an ester represented by a formula (1) below, the ester having a kinematic viscosity in a range from 300 mm2/s to 1000 mm2/s at 40 degrees C. and an acid value of 0.5 mgKOH/g or less; (B) an ester being obtained by reacting a straight-chain saturated aliphatic carboxylic acid with a polyhydric alcohol, the ester having an acid value of 0.5 mgKOH/g or less; and (C) a phosphate amine salt being obtained by reacting an acidic phosphate with an alkylamine. In the formula, Ra is a hydrocarbyl group having 4 to 20 carbon atoms, Rb is a hydrocarbyl group having 4 to 18 carbon atoms, Rc is an acyl group having 1 to 10 carbon atoms, and n is an integer of 3 to 15.
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: September 22, 2015
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Tahei Okada, Yukitoshi Fujinami, Takuya Ohno
  • Publication number: 20140378358
    Abstract: A shock absorber oil composition of the invention includes a base oil: (A) at least one of phosphate, amine phosphate salt, phosphite and amine phosphite salt; (B) an amide compound; and (C) a primary amine.
    Type: Application
    Filed: December 13, 2012
    Publication date: December 25, 2014
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventor: Aya Aoki
  • Publication number: 20140303054
    Abstract: The invention provides a lubricating composition containing an oil of lubricating viscosity and an ashless ketone compound with at least one of a hydroxy group and an ether linkage attached to the carbon atom adjacent to the carbonyl carbon of the ketone, especially ?-hydroxyketone. The invention further relates to methods of lubricating an internal combustion engine by supplying the described lubricating composition to the internal combustion engine. The invention further relates to the use of the ?-hydroxyketone compound as a friction modifier and an antiwear agent.
    Type: Application
    Filed: October 11, 2012
    Publication date: October 9, 2014
    Inventors: Daniel J. Saccomando, Scott Capitosti, William R.S. Barton
  • Publication number: 20140303053
    Abstract: A lubricant composition comprising at least 90 wt % of at least one oil soluble polyalkylene glycol (OSP), wherein the OSP comprises at least 40 wt % units derived from butylene oxide and at least 40 wt % units derived from propylene oxide, initiated by one or more initiators selected from monols, diols, and polyols; and at least 0.05 wt % of at least one anti-wear additive; wherein the lubricant composition exhibits a four ball anti-wear of less than or equal to 0.35 mm and an air release value at 50° C. of less than or equal to 1 minute is provided.
    Type: Application
    Filed: October 25, 2012
    Publication date: October 9, 2014
    Inventor: Martin R. Greaves
  • Publication number: 20140296117
    Abstract: A biodegradable lubricating oil composition of the invention includes a component (A) that is an ester obtained by reacting a linear saturated aliphatic carboxylic acid and a linear aliphatic dicarboxylic acid with a polyhydric alcohol, a component (B) that is an ester obtained by reacting a linear saturated aliphatic carboxylic acid with a polyhydric alcohol, and a component (C) that is a phosphate amine salt obtained by reacting an acidic phosphate with an alkylamine, in which the linear saturated aliphatic carboxylic acid of the component (A) is formed of a linear saturated aliphatic carboxylic acid having 8 carbon atoms and a linear saturated aliphatic carboxylic acid having 10 carbon atoms, and a molar amount of the linear saturated aliphatic carboxylic acid having 8 carbon atoms is larger than a molar amount of the linear saturated aliphatic carboxylic acid having 10 carbon atoms.
    Type: Application
    Filed: August 30, 2012
    Publication date: October 2, 2014
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Takuya Ohno, Masahisa Goto
  • Patent number: 8822395
    Abstract: The present invention provides a refrigerating machine oil composition for use in a compressor for a refrigerator in which a sliding surface of at least a part of constitutional members of the compressor is coated with a lubrication film-forming composition containing a resin having a heat distortion temperature of 100° C. or higher as a binder, and a solid lubricant, wherein the refrigerating machine oil composition contains a base oil made of a polyoxyalkylene glycol having a kinematic viscosity of from 3 to 50 mm2/s as measured at 100° C., and a compound selected from the group consisting of amide compounds, amidated amino acid compounds and aliphatic amines having a specific structural formula which compound is contained in an amount of from 0.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: September 2, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Harutomo Ikeda, Takayuki Kato, Manabu Sugiura, Masami Ohno, Shuichi Yasuda, Takahiro Sugioka
  • Publication number: 20140199009
    Abstract: The present invention relates to: a grease composition that includes a base oil which has a pressure-viscosity coefficient as measured at 40° C. of 33 GPa?1 or less and a thickener which is contained in a projected-area proportion of 10% by area or higher; and a rolling device packed with the grease composition.
    Type: Application
    Filed: August 24, 2012
    Publication date: July 17, 2014
    Applicant: NSK LTD.
    Inventors: Noriyuki Inami, Atsushi Yokouchi, Michita Hokao, Shinya Nakatani, Haruka Kanda, Kazuhiro Soga, Takayuki Miyagawa
  • 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: 20140097059
    Abstract: A lubricant composition comprising lubricating oil and a compound containing phosphorus and an amine of formula I: wherein R1 is a hydrocarbon group and at least one of R1 is selected from: —(C1-C20)alkyl, —(C1-C20)alkenyl, —(C5-C20)cycloalkyl; R is selected from: —(C4-C20)alkyl, —(C4-C20)alkenyl, —(C5-C20)cycloalkyl; and wherein R2, R3 and R4 are independently selected from: —H, —(C6-C36)alkyl, —(C6-C36)alkenyl, —(C6-C36)cycloalkyl, wherein at least one of R2, R3 and R4 is not H; X is O or S; Y1 and Y2 are selected from S and O; m is 1 or 2, n is 0 or 1, p is 1 or 2, provided that m+n+p=3 and q=0.8 to 1.2*p, wherein the compound provides at least 48 ppm of phosphorus and a molar ratio phosphorus to nitrogen (P/N) in the range of about 0.40 to about 1.50.
    Type: Application
    Filed: December 10, 2013
    Publication date: April 10, 2014
    Applicant: Afton Chemical Corporation
    Inventors: Hong-Zhi TANG, Lee D. SAATHOFF
  • Publication number: 20140051618
    Abstract: The lubricating oil composition contains a base oil; (A) an acidic alkyl phosphate ester having a C6 to C20 alkyl group; (B) a dialkylamine and/or a trialkylamine; and (C) (c-1) a sulfur compound in an amount of 0.2 to 0.6 mass % as reduced to S, the sulfur compound containing no poly-sulfur bond which is equal to or longer than —S—S—S— in a molecule thereof and having an S content of the molecule of 15 mass % or more and (c-2) an optional thiophosphoric acid trihydrocarbyl ester in an amount of 0.1 to 1.0 mass %, the ester being represented by formula (I): (R—O—)3P?S??(I) (wherein R represents a C6 to C20 hydrocarbyl group) and having a P content of the composition of 150 to 500 ppm by mass The lubricating oil composition has excellent anti-seizure performance, excellent anti-fatigue performance (e.g., anti-FZG-micropitting performance), and reduced sludge formation in an oxidation test.
    Type: Application
    Filed: October 25, 2013
    Publication date: February 20, 2014
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventor: Tahei OKADA
  • Patent number: 8551927
    Abstract: The invention relates to a lubricating composition containing (a) an oil of lubricating viscosity, and (b) an oil soluble compound with a >N—R—N< group, wherein R may be a hydrocarbylene group. The invention further provides for the use of the lubricating composition for lubricating a limited slip differential.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: October 8, 2013
    Assignee: The Lubrizol Corporation
    Inventors: Daniel J. Saccomando, Stuart L. Bartley, Shubhamita Basu
  • Patent number: 8404624
    Abstract: The invention relates to an additive composition, which comprises an additive mixture that essentially consists of a) At least one ammonium phosphate ester; b) At least one thiophosphoric acid ester, and c) At least one dithiophosphoric acid derivative; in combination with sulphur containing oil additives; and a process for the reduction of wear in combustion engines, such as spark ignition or Diesel motor engines.
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: March 26, 2013
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: Marc Ribeaud
  • Patent number: 8361941
    Abstract: The present invention relates to an antiwear agent and lubricating compositions thereof. The invention further provides for a method of lubricating a driveline device or a grease application by employing a lubricating composition containing the antiwear agent.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: January 29, 2013
    Assignee: The Lubrizol Corporation
    Inventor: Charla A. Ramsey
  • Patent number: 8207099
    Abstract: A crankcase lubricant, an additive concentrate and a method for improving water tolerance of a lubricant. The lubricant includes a) a major amount of a base oil; b) an alkali or alkaline earth metal-containing detergent; c) a phosphorus-based wear preventative; and d) a surfactant agent other than (b). The lubricant has a weight ratio of alkali or alkaline earth metal content to phosphorus content, based on a total mass of lubricant, ranging from about 1.6 to about 5.0.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: June 26, 2012
    Assignee: Afton Chemical Corporation
    Inventor: John T. Loper
  • Patent number: 8084404
    Abstract: The present invention is directed to a crankcase lubricating oil composition for protection of silver bearings in locomotive diesel engines comprising (A) a major amount of an oil of lubricating viscosity, and (B) a silver wear protection additive composition, and (C) one or more detergents. The silver wear protection additive composition of the present invention comprises a mixture of (i) a hydrocarbylamine salt of a di-alkyl di-thiophosphoric acid and (ii) a hydrocarbylamine salt of an alkyl acid phosphate.
    Type: Grant
    Filed: July 20, 2005
    Date of Patent: December 27, 2011
    Assignee: Chevron Oronite Company LLC
    Inventors: Melanie F. Tobias, Kenneth D. Nelson, Elaine S. Yamaguchi, Vernon R. Small
  • Patent number: 7888299
    Abstract: 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: Grant
    Filed: January 13, 2004
    Date of Patent: February 15, 2011
    Assignee: Afton Chemical Japan Corp.
    Inventors: Jeffrey L. Milner, Masao Seki, Roger M. Sheets, Kenji Yatsunami
  • Patent number: 7776799
    Abstract: The invention concerns a method for cold rolling metals using an aqueous lubricant comprising: (1) at least a mixture based on at least an acid selected among saturated or unsaturated mono- or poly-carboxylic acids, comprising 5 to 40 carbon atoms; at least an acid phosphate ester of formula (RO)x-P(?O)(OH)x?, wherein: R is a hydrocarbon radical, optionally polyalkoxylated; x and x? being equal to 3; the carboxylic acid and/or the acid phosphate ester being optionally neutralized by an organic or mineral base; and (2) at least a natural or synthetic wax exhibiting a melting point not less than 50° C. and having an average particle size ranging between 0.5 and 10 ?m. The use of said lubricant enables to increase the productivity of the method by at least 15% relative to a method using a conventional lubricant.
    Type: Grant
    Filed: October 3, 2007
    Date of Patent: August 17, 2010
    Assignee: Rhodia Chimie
    Inventors: Dominique Raison, Jean-Guy Le Helloco
  • Publication number: 20100190669
    Abstract: 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: Application
    Filed: May 15, 2008
    Publication date: July 29, 2010
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Mark Davies, Rodney J. McAtee
  • Patent number: 7759294
    Abstract: Lubricant compositions having improved load carrying capacity comprising an extreme pressure compound comprising a sulfur-containing compound, a load carrying capacity enhancing combination comprising a hydrocarbylamine compound and an alkylphosphorothioate compound, a friction modifier compound, and a diluent or base oil as applicable. These lubricant compositions can be used as industrial oils well-suited for the demands of geared device applications, such as in wind turbine gear-boxes and automotive gears and axles.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: July 20, 2010
    Assignee: Afton Chemical Corporation
    Inventors: Mark T. Devlin, Helen T. Ryan
  • Publication number: 20100075877
    Abstract: The present invention provides a lubricating oil composition for a shock absorber including: a base oil containing a mineral oil and/or a synthetic oil; (A) a phosphate compound and/or a phosphite compound having a hydrocarbon group having 2 to 18 carbon atoms; and (B) a secondary amine compound represented by the General Formula (I), wherein R1 and R2 each represent an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms, or a cycloalkane-containing group having 5 to 18 carbon atoms, and R1 and R2 may be the same or different from each other, or may be bonded to each other to form a cyclic structure having 3 to 6 carbon atoms with a nitrogen atom serving as a hetero atom. The lubricating oil composition for a shock absorber of the present invention can increase the friction force between seals and steel parts in the shock absorber of an automobile, improve the control stability when the car is driven at high speeds, and simultaneously improve the ride quality.
    Type: Application
    Filed: September 26, 2007
    Publication date: March 25, 2010
    Applicant: Idemitsu Kosan Co., Ltd
    Inventor: Hidetoshi Koga
  • Publication number: 20100048438
    Abstract: An additive package, lubricant formulation with the additive package and method of improving gear lubricant properties with the additive package are disclosed. The additive package comprises at least one antiwear additive, at least one antioxidant additive, at least one rust inhibitor additive, at least one metal passivator additive, at least one demulsifier additive, at least one defoamant additive wherein the composition has less than 3.5% phosphorous, less than 1.7% ppm nitrogen, less than 1000 ppm sulfur, less than 100 ppm metals and a TAN of less than 1.
    Type: Application
    Filed: August 18, 2009
    Publication date: February 25, 2010
    Inventors: James T. Carey, Angela S. Galiano-Roth, Margaret M. Wu, Heather M. Haigh
  • Publication number: 20100008810
    Abstract: A lubricating oil composition for a rotary gas compressor has a kinematic viscosity of 5 mm2/s or less at 100 degrees C., a flash point of 200 degrees C. or more and 5 volume % distillation temperature of 350 degrees C. or more. The lubricating oil composition contains at least either one of a phosphorous extreme pressure agent and an antioxidant.
    Type: Application
    Filed: December 21, 2007
    Publication date: January 14, 2010
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventor: Hideto Kamimura
  • Publication number: 20100005829
    Abstract: The present invention provides a lubricating oil for a compression type refrigerator including a polyvinyl ether-based compound which containing an alkylene glycol or polyoxyalkylene glycol unit and a vinyl ether unit in a molecule and having a molecular weight in a range of 300 to 3,000 and one or more kinds of phosphorous compound selected from a phosphate having 25 or more carbon atoms, a phosphite having 10 to 60 carbon atoms, an amine salt of phosphate having 10 to 60 carbon atoms, and a metal salt of phosphate having to 60 carbon atoms. The lubricating oil for a compression type refrigerator of the present invention has high compatibility and high viscosity index, and is excellent in anti-seizure property and also in stability under carbon dioxide atmosphere.
    Type: Application
    Filed: September 21, 2007
    Publication date: January 14, 2010
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Masato Kaneko, Harutomo Ikeda
  • Patent number: 7598212
    Abstract: An improved lubricating composition suitable for diesel engines comprising a major amount of at least one oil of lubricating viscosity and a minor amount of an alkylamine-alkylphosphate additive. The alkylamine-alkylphosphate additive comprises from at least 1.25 equivalents of alkylamine to 1.0 equivalents of alkylphosphate.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: October 6, 2009
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Kevin Louis Crouthamel, Vincent Mark Carey, Peter Calcavecchio, Evelyn Nobles Drake, Kevin John Kelly, Liehpao Oscar Farng
  • Publication number: 20090082232
    Abstract: The present invention provides a refrigerating machine oil composition for use in a compressor for a refrigerator in which a sliding surface of at least a part of constitutional members of the compressor is coated with a lubrication film-forming composition containing a resin having a heat distortion temperature of 100° C. or higher as a binder, and a solid lubricant, wherein the refrigerating machine oil composition contains a base oil made of a polyoxyalkylene glycol having a kinematic viscosity of from 3 to 50 mm2/s as measured at 100° C., and a compound selected from the group consisting of amide compounds, amidated amino acid compounds and aliphatic amines having a specific structural formula which compound is contained in an amount of from 0.
    Type: Application
    Filed: April 27, 2006
    Publication date: March 26, 2009
    Applicants: Idemitsu Kosan Co., Ltd., TOYOTA INDUSTRIES CORPORATION
    Inventors: Harutomo Ikeda, Takayuki Kato, Manabu Sugiura, Masami Ohno, Shuichi Yasuda, Takahiro Sugioka
  • Publication number: 20080312115
    Abstract: The invention relates to an additive composition, which comprises an additive mixture that essentially consists of a) At least one ammonium phosphate ester; b) At least one thiophosphoric acid ester, and c) At least one dithiophosphoric acid derivative; in combination with sulphur containing oil additives; and a process for the reduction of wear in combustion engines, such as spark ignition or Diesel motor engines.
    Type: Application
    Filed: March 13, 2006
    Publication date: December 18, 2008
    Inventor: Marc Ribeaud
  • Publication number: 20080125338
    Abstract: A food grade lubricant composition and method of lubricating food processing machinery. The food grade lubricant composition includes a major amount of food grade base oil and a minor amount of at least one additive composition. The additive composition includes one or more non-sludge promoting wear reducing agents. An advantage of the lubricant composition is that it may exhibit lower sludge formation tendencies than a lubricant composition containing a conventional wear reducing agent.
    Type: Application
    Filed: November 29, 2006
    Publication date: May 29, 2008
    Inventors: Patricia M. Corbett, Helen T. Ryan, Roger M. Sheets
  • Patent number: 7122508
    Abstract: Disclosed are methods and lubricant compositions for reducing wear in internal combustion engines lubricated with a low phosphorous content lubricating oil. The lubricant compositions of this invention comprise a synergistic combination of a dispersed, hydrated, alkali metal borate and at least one phosphorous-containing compound wherein the total phosphorous employed in the composition is no more than about 0.08 weight percent based on the total weight of the composition.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: October 17, 2006
    Assignee: Chevron Oronite Company LLC
    Inventor: Alexander B. Boffa
  • Patent number: 7056871
    Abstract: An oil-soluble additive composition and lubricating oil composition containing the same, comprising an organic sulfur-containing extreme pressure additive; a thiadiazole, wherein the thiadiazole does not contain a polycarboxylate moiety and the amount of dimercaptothiadiazole is from about 0.1 wt % to about 10 wt %; an amino phosphorus compound; and an alkyl or alkenyl succinic anhydride, used to reduce the corrosion of yellow metal components which are present in axles and transmissions.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: June 6, 2006
    Assignee: Chevron Oronite Company LLC
    Inventor: Juan Alberto Buitrago
  • Patent number: 7045490
    Abstract: A refrigerating machine oil composition according to the invention comprises an alicyclic polycarboxylic acid ester compound obtained from the following compounds (a) to (c): (a) an alicyclic polycarboxylic acid having an alicyclic ring and two or more carboxyl groups, or its derivative, wherein at least two of the carboxyl groups are bonded to mutually adjacent carbon atoms on the alicyclic ring; (b) a compound with two or more hydroxyl groups or its derivative; and (c) a compound with one hydroxyl group or its derivative. It can be used together with HFC refrigerants and natural refrigerants such as carbon dioxide and hydrocarbons, to provide a satisfactory balance between all of the properties of lubricity, miscibility with refrigerants, heat and hydrolytic stability and electric insulating property.
    Type: Grant
    Filed: July 18, 2001
    Date of Patent: May 16, 2006
    Assignee: Nippon Oil Corporation
    Inventors: Yuji Shimomura, Katsuya Takigawa
  • Patent number: 6890890
    Abstract: This invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity, (A) an antiwear improving amount of at least one molybdenum containing composition, (B) at least one phosphorus antiwear or extreme pressure agent, and (C) at least one dispersant, provided that the lubricating composition is free of polysulfurized olefins. The lubricating compositions have improved antiwear properties. When the lubricating composition is used in a manual transmission, the amount of brass wear is reduced.
    Type: Grant
    Filed: August 21, 2003
    Date of Patent: May 10, 2005
    Assignee: The Lubrizol Corporation
    Inventor: Michael P. Gahagan
  • Patent number: 6878677
    Abstract: The invention provides a refrigerator oil composition comprising a base oil of a mineral oil and/or a synthetic oil, and containing (a) a partial ester of a polyalcohol and a fatty acid and (b) an acid phosphate or its amine salt; and a refrigerator oil composition comprising a base oil of a mineral oil and/or a synthetic oil, and containing any of (a) acid phosphates or their amine salts, (b) acetylene glycol alkylene oxide adducts, (c) potassium salts of fatty acids, etc., (d) organic acids, and (e) fatty acid amides. The refrigerator oil compositions have good lubricity and are especially effective for reducing the friction in both the oil region and the extreme-pressure region in the sliding area between aluminium materials and steel materials.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: April 12, 2005
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Shuichi Sakanoue, Masahiko Takesue, Youichiro Jido, Minoru Takagi, Shoichi Tominaga, Hiroshi Nagakawa
  • Patent number: 6872693
    Abstract: This invention relates to mineral oil based gear oils and transmission fluids which comprise a major amount of a mineral oil having an iodine number of less than 9 and where at least 55% of the saturates are aliphatic, and gear oil or transmission fluid additives. In one embodiment, the invention relates to a gear oil or transmission fluid composition comprising a major amount of lubricant basestock and at least one functional additive wherein a major amount of the lubricant basestock comprises a mineral oil having an iodine number of less than 9 and comprising at least 45% by weight of aliphatic saturates. These gear oils and transmission fluids have good viscosity and oxidation properties.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: March 29, 2005
    Assignee: The Lubrizol Corporation
    Inventor: Robert W. Cain
  • Patent number: 6844300
    Abstract: Gear oils meeting GL-5 specifications are obtained by blending a base oil, a thermally stable phosphorus-containing anti-wear agent; and a metal-free sulfur-containing extreme-pressure agent; wherein the thermally stable phosphorus-containing anti-wear agent is present in an amount sufficient to provide from 100 to 350 ppm phosphorus to the formulated gear oil and wherein the metal-free sulfur-containing extreme-pressure agent is present in an amount sufficient to provide at least 10,000 ppm sulfur to the formulated gear oil and wherein the formulated gear oil contains 350 ppm of phosphorus or less.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: January 18, 2005
    Assignee: Ethyl Corporation
    Inventors: Jeffrey L. Milner, Roger M. Sheets, David R. Ellis, Rodney I. Barber
  • Publication number: 20040259743
    Abstract: The present invention relates to a lubricating oil composition containing: (1) an antiwear package comprising: (a) a hydrocarbyl phosphate and amine salt thereof; and (b) an alkylene coupled adduct of a hydrocarbyl substituted dithiophosphoric acid and a &agr;,&bgr;-unsaturated carbonyl containing compound; (2) an antioxidant package comprising: (a) a hydrocarbyl diphenylamine; and (b) a sterically hindered phenol; (3) a metal deactivator; and (4) an oil of lubricating viscosity. The invention further relates to the process to make the lubricating oil composition and its use in industrial fluids especially hydraulic fluids.
    Type: Application
    Filed: June 18, 2003
    Publication date: December 23, 2004
    Applicant: The Lubrizol Corporation, a corporation of the State of Ohio
    Inventor: Betsy J. Butke
  • Publication number: 20040242437
    Abstract: The invention relates to an engine oil composition is disclosed that meets FZG CEC IT-84/FVA 2434(A10/16.6R/90) of transportation gear oils, wherein FLS=10, which composition comprises a) An engine oil, b) A &bgr;-dithiophosphorylated Propionic Acids; and c) Other customary oil additives, Wherein component b) is about 2.0 to about 8.0% by weight, based on the weight of component a) plus component c).
    Type: Application
    Filed: June 25, 2004
    Publication date: December 2, 2004
    Inventors: Jose Reyes-Gavlian, Alfred Dratva, Marc Ribeaud, Peter Rohrbach
  • Publication number: 20040232044
    Abstract: A composition useful for dispersing asphaltenes in crude oil comprising: (a) 0.001% to 20% of at least one reaction product of (i) an imine; and (ii) an organic acid; and (b) crude oil.
    Type: Application
    Filed: May 23, 2003
    Publication date: November 25, 2004
    Inventor: Ravindranath Mukkamala
  • Publication number: 20040214730
    Abstract: An oil-soluble additive composition and lubricating oil composition containing the same, comprising an organic sulfur-containing extreme pressure additive; a thiadiazole, wherein the thiadiazole does not contain a polycarboxylate moiety and the amount of dimercaptothiadiazole is from about 0.1 wt % to about 10 wt %; an amino phosphorus compound; and an alkyl or alkenyl succinic anhydride, used to reduce the corrosion of yellow metal components which are present in axles and transmissions.
    Type: Application
    Filed: April 25, 2003
    Publication date: October 28, 2004
    Applicant: Chevron Oronite Company LLC
    Inventor: Juan Alberto Buitrago
  • Publication number: 20040214733
    Abstract: A lubricating oil composition is provided containing a major amount of a lubricating oil base oil and a minor amount of an additive combination containing
    Type: Application
    Filed: June 1, 2004
    Publication date: October 28, 2004
    Inventor: Yoshiharu Baba
  • Publication number: 20040192564
    Abstract: The present invention provides a hypoid axle bimodal gear lubricant formulation comprising: (a) a base oil of lubricating viscosity, (b) at least one viscosity index improver, (c) a friction modifier, and (d) an antiwear additive; wherein said bimodal gear lubricant formulation produces a gel permeation chromatogram having at least a first peak representative of the base oil and at least a second peak representative of the viscosity index improver, and wherein said base oil has a viscosity at 100° C. in the range of from about 2 centistokes to about 8 centistokes, and wherein said undilute viscosity index improver has a viscosity in the range of from about 600 centistokes to about 45,00 centistokes.
    Type: Application
    Filed: March 25, 2003
    Publication date: September 30, 2004
    Inventors: Vasudevan Balasubramaniam, David J. DeGonia
  • Patent number: 6797679
    Abstract: Provided is a lubricant composition prepared by adding, to a base oil, (a) from 0.01 to 5% by mass, based on the composition, of a phosphate, (b) from 0.005 to 1% by mass of an amine salt of an acid phosphate and (c) from 0.01 to 1% by mass of a sulfur-containing extreme-pressure agent. The composition is favorable for non-zinc hydraulic oil, which has good oxidation resistance, sludge resistance and wear resistance and further has improved extreme pressure resistance and prolonged fatigue life.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: September 28, 2004
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Hiroshi Kawasaki, Nobuaki Watanabe
  • Publication number: 20040147415
    Abstract: A lubricant composition comprising a major amount of an oil of lubricating viscosity and a minor amount of:
    Type: Application
    Filed: September 30, 2003
    Publication date: July 29, 2004
    Inventors: Alisdair J. Brown, Roger W. Glyde, Rebecca Castle, Jane Gilmore, Simon S. M. Chung, Rolfe J. Hartley
  • Publication number: 20040147410
    Abstract: In its broadest concept, the present invention relates to an improved gear oil comprising:
    Type: Application
    Filed: January 13, 2004
    Publication date: July 29, 2004
    Inventors: Jeffrey L. Milner, Masao Seki, Roger M. Sheets, Kenji Yatsunami
  • Patent number: 6756346
    Abstract: A lubricating oil composition comprising (I) 100 pbw of a base oil, (II) an antiwear agent comprising (i) from 0.05 to 10 pbw of a phosphorothionate and from 0.01 to 1.0 pbw of an amine salt of phosphorus compound and/or (ii) from 0.05 to 10 pbw of a dithiophosphate, and (III) a rust preventing agent comprising from 0.01 to 1.0 pbw of an amide obtained by reacting a polyalkylene polyamine and a carboxylic acid having from 4 to 30 carbon atoms, and the use of such lubricating composition.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: June 29, 2004
    Assignee: Shell Oil Company
    Inventors: Yoshiharu Baba, Kiyoshi Hanyuda
  • Publication number: 20040116309
    Abstract: An oil composition for cutting and grinding by minimal quantity lubrication system and for sliding surface according to the present invention comprises an ester and a sulfur compound and/or a phosphorus compound.
    Type: Application
    Filed: October 3, 2003
    Publication date: June 17, 2004
    Inventors: Hideo Yokota, Masanori Ibi, Satoshi Suda
  • Publication number: 20040087450
    Abstract: Disclosed are methods and lubricant compositions for reducing wear in internal combustion engines lubricated with a low phosphorous content lubricating oil. The lubricant compositions of this invention comprise a synergistic combination of a dispersed, hydrated, alkali metal borate and at least one phosphorous-containing compound wherein the total phosphorous employed in the composition is no more than about 0.08 weight percent based on the total weight of the composition.
    Type: Application
    Filed: October 31, 2002
    Publication date: May 6, 2004
    Inventor: Alexander B. Boffa
  • Publication number: 20040072702
    Abstract: The invention concerns a method for cold rolling metals using an aqueous lubricant comprising: (1) at least a mixture based on at least an acid selected among saturated or unsaturated mono- or poly-carboxylic acids, comprising 5 to 40 carbon atoms; at least an acid phosphate ester of formula (RO)x—P(═O)(OH)x′, wherein: R is a hydrocarbon radical, optionally polyalkoxylated; x and x′ being equal to 3; the carboxylic acid and/or the acid phosphate ester being optionally neutralised by an organic or mineral base; and (2) at least a natural or synthetic wax exhibiting a melting point not less than 50° C. and having an average particle size ranging between 0.5 and 10 &mgr;m. The use of said lubricant enables to increase the productivity of the method by at least 15% relative to a method using a conventional lubricant.
    Type: Application
    Filed: November 17, 2003
    Publication date: April 15, 2004
    Inventors: Dominique Raison, Jean-Guy Le Helloco