With Organic Nitrogen, Sulfur, Or Halogen Compound Patents (Class 508/438)
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Patent number: 12110468Abstract: The present disclosure relates to lubricating compositions and, in particular, lubricating compositions suitable for medium and/or heavy duty diesel engines having low levels of phosphorus and/or zinc but still achieving good valve train wear by including an antiwear system provided from overbased zinc dihydrocarbyl dithiophosphates having a selected average degree of branching and a certain percent of hydrocarbyl groups derived from secondary alcohols.Type: GrantFiled: March 22, 2023Date of Patent: October 8, 2024Assignee: Afton Chemical CorporationInventors: Leah Donham, Abaigeal Ritzenthaler
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Patent number: 12006485Abstract: The present invention provides a lubricating oil additive, including: a molybdenum compound (A) represented by the following general formula (1); and a sulfur-based composition (B) containing a sulfur-based compound (b-1) represented by the following general formula (2) and at least one kind of sulfur-based compound (b-2) represented by the following general formula (3) or (4), and a lubricating oil composition containing the additive. In the formula (1), R1 to R4 each represent alkyl groups having 6 to 18 carbon atoms, the groups being identical to or different from each other, and X1 to X4 each independently represent an oxygen atom or a sulfur atom. In the formula (2), R5 and R6 each represent alkyl groups having 3 to 24 carbon atoms, the groups being identical to or different from each other, and “a” and “b” each represent a number from 1 to 5.Type: GrantFiled: July 14, 2020Date of Patent: June 11, 2024Assignees: ADEKA CORPORATION, DIC CORPORATIONInventors: Shinji Iino, Eiji Katsuno, Taro Sumi, Hironobu Matsueda, Hiroshi Sakata
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Patent number: 11499112Abstract: The present invention relates to a hydraulic fluid composition containing a base oil (A), an antioxidant (B) including an amine-based antioxidant (B1) and a phenol-based antioxidant (B2), and a succinimide-based compound (C), wherein the hydraulic fluid composition satisfies the following requirement (I); and is to be used for hydraulic equipment which is equipped with at least one of a wet type brake and a wet type clutch and which is selected from a construction machinery, a general industrial machinery, and a power generator, and in which a working pressure is 30 MPa or more. The hydraulic fluid composition is not only excellent in wear resistance and an effect for suppressing the sludge formation but also excellent in a braking performance or a clutch performance, even when used under a high-pressure condition. Requirement (I): A static friction coefficient (?s) after 1,000 cycles, as measured in conformity with the SAE No. 2 test described in JCMAS P 047:2004, is 0.100 to 0.162.Type: GrantFiled: September 27, 2018Date of Patent: November 15, 2022Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Shinji Aoki, Shota Inoue
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Patent number: 10696915Abstract: A dry lubricant for conveyor belts and other surfaces set for lubricating through direct application via a nozzle is disclosed. Lubricants including a homogeneous mixture of fatty acids, a hydrocarbon such as a mineral oil, a sorbitan ester, and a polyglycol, which are substantially-free of water are disclosed. Methods of using the lubricants in dry and semi-dry modes are further disclosed.Type: GrantFiled: July 27, 2015Date of Patent: June 30, 2020Assignee: Ecolab USA Inc.Inventors: Fabiola Morales Arriaga, Sara Trevino Garza, Jesus Ochoa Guerra, Jaime Mendoza Santos
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Patent number: 9144924Abstract: To provide a thermoplastic resin composition for cleaning a molding processing machine, which has good cleaning performance and workability in cleaning an inner side of a molding processing machine of thermoplastic resin, such as an extruder and an injection molding machine. A thermoplastic resin composition for cleaning a molding processing machine, which includes (A) a thermoplastic resin containing a styrene-based resin, (B) an alkaline metal salt of a fatty acid, (C) a nonionic surfactant, and (D) a metal salt of an acidic phosphoric ester.Type: GrantFiled: January 15, 2013Date of Patent: September 29, 2015Assignee: DAICEL POLYMER LTD.Inventor: Naoki Wakita
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Patent number: 8394746Abstract: 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: GrantFiled: August 18, 2009Date of Patent: March 12, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: James T. Carey, Angela S. Galiano-Roth, Margaret M. Wu, Heather M. Haigh
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Publication number: 20120270693Abstract: A lubricating oil used in a friction-type drive power transmission apparatus which includes: at least one of two additives; a first additive selected from at least one of an aliphatic amine having a saturated or unsaturated hydrocarbon group with a carbon number of 12 to 20 (Chemical Formula 1) and an aliphatic amine ethylene oxide adduct having a saturated or unsaturated hydrocarbon group with a carbon number of 12 to 20 (Chemical Formula 2).Type: ApplicationFiled: November 19, 2010Publication date: October 25, 2012Applicants: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, JTEKT CorporationInventors: Hiroyuki Ando, Junji Ando, Kazutaka Matsukawa, Toshimi Hara, Mototake Furuhashi, Mamoru Tohyama, Toshihide Ohmori, Yasuo Esaki, Chihiro Kanzawa, Keiko Fukumoto
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Publication number: 20120247514Abstract: The present invention relates a lubricant and/or clean-out composition comprising: (a) a dispersant component comprising a succinimide dispersant and/or a quaternary ammonium salt dispersant; (b) a carrier fluid component; and (c) an optional corrosion inhibitor, as well as methods of cleaning out deposits in a lubricant system, such as a hydraulic system, using such compositions.Type: ApplicationFiled: October 14, 2010Publication date: October 4, 2012Applicant: The Lubrizol CorporationInventors: Betsy J. Butke, Grenville Holt
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Publication number: 20120111079Abstract: The disclosure relates to a cold rolling fluid, including: (a) a hydrocarbon base including at least 50 wt % of isoparaffins; (b) one or more frictional modifiers selected from among fatty alcohols, fatty acids, fatty amines, fatty acid esters, or polymer esters resulting from the esterification of alpha-olefin copolymers and dicarboxylic acids using alcohols; and (c) one or more phosphorous anti-wear and/or extreme pressure additives. The disclosure also relates to an emulsion containing the rolling fluid and to the use of the rolling fluid for cold-rolling steel.Type: ApplicationFiled: July 2, 2010Publication date: May 10, 2012Applicant: TOTAL RAFFINAGE MARKETINGInventors: Nicole Genat, Frédéric Jarnias
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Publication number: 20120068564Abstract: A lubricating fluid contains a synthetic ester base fluid having a viscosity index of at least 110, from 0.01% to 5% by weight, based on the total weight of the lubricating fluid, of at least one tri-C6-C14-aryl phosphate, and from 0.01% by weight to 5% by weight, based on the total weight of the synthetic ester base fluid, of at least one carbodiimide.Type: ApplicationFiled: November 30, 2011Publication date: March 22, 2012Applicant: SEAGATE TECHNOLOGY LLCInventor: Raquib Uddin Khan
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Publication number: 20120006652Abstract: The present invention relates to a lubricant concentrate containing the following components (i) at least one amine, (ii) at least one phosphate according to the general formula (I), (iii) at least one acid, (iv) optionally at least one ether carboxylic acid compounds with the general formula (II) R20—(O(CH2)m)nOCH2COO?M+??(II), (v) optionally at least one further aid or additive.Type: ApplicationFiled: September 22, 2011Publication date: January 12, 2012Applicant: DIVERSEY, INC.Inventors: Holger Theyssen, Mario Stanga, Franco Bruschi, Stefan Wiemer
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Patent number: 8083965Abstract: The refrigerating machine oil of the present invention contains a mineral oil whose nitrogen content is not more than 50 ppm by mass and whose percent in aromatic ring structures (% CA) is from 5 to 25. With the refrigerating machine oil of the present invention, high levels of lubricity, stability, and miscibility with refrigerants are attained, with a good balance between these, so refrigerating and air conditioning machines can be operated stably over a longer period.Type: GrantFiled: March 2, 2005Date of Patent: December 27, 2011Assignee: Nippon Oil CorporationInventors: Kazuo Tagawa, Katsuya Takigawa
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Publication number: 20110252825Abstract: The present invention provides a refrigerator oil composition which satisfies both sludge dispersibility and prevention of wear and seizing of sliding parts made of aluminum and/or iron, and a compressor and a refrigeration apparatus using the refrigerator oil composition. The refrigerator oil composition is characterized by comprising a base oil which is at least one member selected from mineral oils and synthetic oils, and at least one polyamide compound having two or more amide groups in the molecule and being present in an amount of 0.01 to 5% by mass based on the total amount of the refrigerator oil composition.Type: ApplicationFiled: June 29, 2011Publication date: October 20, 2011Applicant: Idemitsu Kosan Co., Ltd.Inventor: Masato KANEKO
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Publication number: 20110092402Abstract: A transmission oil composition for an automobile characterized in that it contains a base oil selected from the group consisting of a mineral oil, a synthetic oil and mixtures thereof; and a phosphate compound selected from the group consisting of (A) a zinc dithiophosphate having a hydrocarbon group, (B) a triaryl phosphate (C) a triaryl thiophosphate, and mixtures thereof at 0.1 to 15.0% by mass with respect to the total composition; wherein the composition has a volume resistivity of 1×107 ohm·m or more at 80° C.Type: ApplicationFiled: December 29, 2010Publication date: April 21, 2011Inventors: Takumaru Sagawa, Takafumi Ueno, Hisayuki Wada, Tooru Aoki
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Publication number: 20110053816Abstract: Provided is a lubricating oil composition containing a base oil which includes a mineral oil and/or a synthetic oil, and compounded therein, (A) at least one phosphorus-containing compound selected from phosphoric acid monoesters, phosphoric acid diesters and phosphorous acid monoesters, each having a C1 to C8 hydrocarbon group or groups and (B) a tertiary amine compound having C6 to C10 hydrocarbon groups as substituents thereof. The lubricating oil composition provides both a high metal to metal friction coefficient and an excellent wear resistance and is suitably used in a continuously variable transmission.Type: ApplicationFiled: January 9, 2009Publication date: March 3, 2011Applicant: IDEMITSU KOSAN Co., Ltd.Inventor: Keiichi Narita
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Patent number: 7897550Abstract: Urea grease composition for constant velocity joints is provided containing base oil, one or more urea thickener compounds, (A) one or more molybdenum sulphurized dialkyldithiocarbamates represented by general formula (I) wherein R1 and R2 are independently chosen from alkyl groups of from 1 to 24 carbons, m+n=4, m is from 0 to 3 and n is from 4 to 1, (B) triphenylphosphorothionate represented by formula (II) and (C) one or more stearic acid metal salts.Type: GrantFiled: June 17, 2004Date of Patent: March 1, 2011Assignee: Shell Oil CompanyInventors: Yasushi Kawamura, Takumi Matsumoto, Kazuhiro Miyajima, Tetsuo Nimura, Kazushige Ohmura, Noriaki Shinoda, Keiji Tanaka, Takeo Yamamoto
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Publication number: 20110003724Abstract: The invention relates to a method for improving properties of protection against spalling of transmission lubricating compositions containing sulphur-containing and sulfur-phosphorous compounds comprising a step for adding into the initial transmission lubricating composition, compounds (c) reducing by at least 5% the active sulfur mass content, as measured by the ASTM D1662 standard, in the final composition.Type: ApplicationFiled: December 18, 2008Publication date: January 6, 2011Applicant: TOTAL RAFFINAGE MARKETINGInventor: Alain Bouffet
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Publication number: 20100317551Abstract: A lubricating oil composition for a continuously variable transmission according to the invention includes: a base oil of lubricating oil; components (A) to (C) below: (A) an acidic phosphorus compound expressed by a formula (1) below, where: R1, R2 and R3 each independently represent hydrogen or an alkyl group having 8 or less carbon atoms, R1, R2 and R3 being not simultaneously hydrogen nor the alkyl group, X1, X2, X3 and X4 each represent oxygen or sulfur, and n represents zero or one, in which when n is zero, at least two of X1, X2 and X3 are sulfur and when n is one, at least two of X1, X2, X3 and X4 are sulfur; (B) an imide compound; and (C) an alkaline earth metal salt.Type: ApplicationFiled: January 22, 2009Publication date: December 16, 2010Applicant: Idemitsu Kosan Co., Ltd.Inventor: Toshiaki Iwai
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Patent number: 7772168Abstract: A lubricating composition includes, in weight %, at least 90 percent of a vegetable oil, and an additive composition including: (a) about 1.5 to 2 percent triphenylphosphorothionate (TPPT), (b) about 0.1 to 3 percent hindered phenolic antioxidant, (c) about 0.05 to 0.25 percent 1-[di(phenyl)aminomethyl]tolutriazole, and (d) about 0.05 to 0.5 percent alkyl succinic acid half ester rust inhibitor.Type: GrantFiled: November 29, 2007Date of Patent: August 10, 2010Assignee: R.T. Vanderbilt Company, Inc.Inventors: Brian Stunkel, Gaston A. Aguilar
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Publication number: 20100087344Abstract: A grease composition which has an excellent anti-fretting property and general versatility, and a machine part which uses the same are provided. A grease composition comprising a urea thickener, a base oil, a phosphorothioate compound and an amine compound and a machine part which uses the same are provided.Type: ApplicationFiled: March 26, 2008Publication date: April 8, 2010Applicant: KYODO YUSHI CO., LTD.Inventor: Osamu Saita
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Publication number: 20100009880Abstract: 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: ApplicationFiled: September 27, 2007Publication date: January 14, 2010Inventor: Tahei Okada
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Patent number: 7629301Abstract: A grease composition is provided containing (a) a base oil; (b) a urea-based thickening agent; (c) at least one compound selected from the group of (i) a molybdenum dithiocarbamate, (ii) a zinc dithiocarbamate, (iii) a molybdenum dithiophosphate, and/or (iv) a zinc dithiophosphate; and (d) a metal salt of a fatty acid.Type: GrantFiled: June 17, 2004Date of Patent: December 8, 2009Assignee: Showa Shell Sekiyu K.K.Inventors: Kazushige Ohmura, Noriaki Shinoda, Keiji Tanaka
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Publication number: 20090186785Abstract: The lubricating oil composition of the invention includes a base oil composed of mineral oil and/or synthetic oil, an amine antioxidant (A-1) in an amount of 800 ppm or more as reduced to the total amount of nitrogen, and a compound containing phosphorus and/or sulfur (A-2). The invention provides a compressor oil which realizes thermal/oxidation stability, resistance to sludge formation, lubricity, long service life, and water separation at high levels.Type: ApplicationFiled: December 7, 2006Publication date: July 23, 2009Applicant: IDEMITSU KOSAN CO., LTD.Inventor: Hideto Kamimura
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Publication number: 20090186789Abstract: The present invention relates to a lubricating oil composition comprising lubricating oil base oil in combination with: (a) one or more substituted phenyl-naphthylamines; (b) one or more anti-wear additives, preferably ashless thiophosphates; and (c) an additional base oil component selected from bright stock oil, polyalkylene glycols (PAGs), alkyl naphtalenes, alkyl benzenes and natural and synthetic esters such as diesters and polyolesters, preferably bright stock oil. In another aspect the present invention provides the use of the lubricating oil composition to lubricate a combination of a gas turbine and a steam turbine.Type: ApplicationFiled: May 3, 2007Publication date: July 23, 2009Inventors: Mitsuhiro Nagakari, Peter William Robert Smith
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Patent number: 7309681Abstract: An ashless natural gas engine lubricating composition which has enhanced resistance to oxidation, nitration and viscosity increase employs as additives in a lubricating oil basestock a combination of phenolic and alkylthiocarbamoyl antioxidants and an ashless phosphorous antiwear additive.Type: GrantFiled: April 23, 2004Date of Patent: December 18, 2007Assignee: ExxonMobil Research and Engineering CompanyInventor: S. James Cartwright
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Patent number: 7112558Abstract: The invention relates to a lubricating composition comprising a base oil of lubricating viscosity, a hydroxy-substituted dithiocarbamate, an organo-molybdenum compound, and optionally a phosphorous source.Type: GrantFiled: February 8, 2002Date of Patent: September 26, 2006Assignee: Afton Chemical Intangibles LLCInventor: Vincent J. Gatto
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Patent number: 7067463Abstract: A pivot assembly bearing used in an information storage device maintains its capabilities for a longer period of time under frequent quick starting and stopping by containing a grease composition made up of a base oil, a thickener and an extreme-pressure agent.Type: GrantFiled: February 12, 2003Date of Patent: June 27, 2006Assignee: Minebea Co., Ltd.Inventor: Motoharu Akiyama
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Publication number: 20040248745Abstract: An ashless natural gas engine lubricating composition which has enhanced resistance to oxidation, nitration and viscosity increase employs as additives in a lubricating oil basestock a combination of phenolic and alkylthiocarbamoyl antioxidants and an ashless phosphorous antiwear additive.Type: ApplicationFiled: April 23, 2004Publication date: December 9, 2004Inventor: S. James Cartwright
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Patent number: 6797679Abstract: 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: GrantFiled: December 10, 2002Date of Patent: September 28, 2004Assignee: Idemitsu Kosan Co., Ltd.Inventors: Hiroshi Kawasaki, Nobuaki Watanabe
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Publication number: 20040147410Abstract: In its broadest concept, the present invention relates to an improved gear oil comprising:Type: ApplicationFiled: January 13, 2004Publication date: July 29, 2004Inventors: Jeffrey L. Milner, Masao Seki, Roger M. Sheets, Kenji Yatsunami
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Patent number: 6756346Abstract: 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: GrantFiled: February 20, 2001Date of Patent: June 29, 2004Assignee: Shell Oil CompanyInventors: Yoshiharu Baba, Kiyoshi Hanyuda
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Patent number: 6756347Abstract: Lubricating solutions are used on conveying systems in the beverage industry during the filling of containers with beverages. Lubricating compositions of the present invention, especially those designed for use in beverage conveying systems for contained beverages, comprise at least the following components: a) an alkyl alkoxylated (e.g., ethoxylated or propoxylated, preferably ethoxylated) phosphate ester, b) aryl (e.g., aromatic, such as phenol) alkoxylated (e.g., ethoxylated or propoxylated) phosphate ester, c) an aromatic or linear quaternary ammonium antimicrobial agent, and d) a liquid carrier, such as water. These lubricating solutions are capable of providing good lubricity and antimicrobial activity over a prolonged time.Type: GrantFiled: January 8, 1999Date of Patent: June 29, 2004Assignee: Ecolab Inc.Inventors: Michael E. Besse, Joy G. Herdt, Kimberly L. Person Hei
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Publication number: 20040121918Abstract: The lubricating compositions of the present invention are designed for use in a four stroke outboard marine engine and contain an oil of lubricating viscosity, an ashless dispersant, a metal detergent, a rust inhibitor system comprising a combination of certain rust inhibitors with an ethoxylated alkyl phenol, a relatively high amount of ZDDP, and an amount of a molybdenum compound sufficient to provide the composition with 15-1,000 ppm by mass of molybdenum. An amount of about 15 ppm to 1,000 ppm by mass of molybdenum from a molybdenum compound has been found to be effective as an antiwear agent in combination with the high levels of ZDDP.Type: ApplicationFiled: September 8, 2003Publication date: June 24, 2004Inventors: Salvatore Rea, Malcolm Waddoups, Rolfe J. Hartley, Ricardo A. Bloch, Michael D. Hoey, George C. L'Heureux
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Patent number: 6706670Abstract: This invention relates to novel water soluble metal working fluid compositions, their use to work metal, a process for working metal using such compositions and the metal worked article of manufacture. More particularly, this invention relates to fluid compositions useful in cutting, grinding, shaping and other metal working operations which require a lubricant. The terms “first Group A” and “second Group B” are used herein to denote different groups and not to indicate any sequence of use or selection as any possible combination or sequence of use of a component(s) is envisioned without limit of any kind. The disclosed fluid compositions are also anticorrosive and environmentally more acceptable than current oil based fluids.Type: GrantFiled: February 24, 1999Date of Patent: March 16, 2004Assignee: Solutia, Inc.Inventors: Dennis J. Kalota, Yueting Chou, Timothy K. Hirzel, David C. Silverman, Jacob S. Tou, Winsor R. Cho
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Patent number: 6667283Abstract: Lubricating solutions are used on conveying systems in the beverage industry during the filling of containers with dairy products or other beverages. Lubricating compositions of the present invention, especially those designed for use in heavy load bearing conveyors such as those in the dairy industry conveying systems for contained beverages, comprise at least the following components: a) an alkyl alkoxylated (e.g., ethoxylated or propoxylated, preferably ethoxylated) phosphate ester, b) a secondary alcohol alkoxylate, (with an optional aryl [e.g., aromatic, such as phenol] alkoxylated [e.g., ethoxylated or propoxylated] phosphate ester), c) an aromatic or linear quaternary ammonium antimicrobial agent, and d) a liquid carrier, such as water. These lubricating solutions are capable of providing good lubricity and antimicrobial activity over a prolonged time and under high stress and heavy loads.Type: GrantFiled: January 15, 1999Date of Patent: December 23, 2003Assignee: Ecolab Inc.Inventors: Joseph I. Kravitz, Joy G. Herdt, Kimberly L. Person Hei, Michael E. Besse
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Patent number: 6660695Abstract: A power transmission fluid comprising a mixture of a major amount of a lubricating oil and an effective amount of a performance enhancing additive combination comprising: (a) at least one organic phosphate having the structure R1—X2—P(:X1)(R2X3)—X—R5 where R1, and R2 may independently be substituted or unsubstituted alkyl, aryl, alkylaryl or cycloalkyl having 1 to 24 carbon atoms and X, X1, X2 and X3 may independently be sulfur or oxygen. R1 and R2 may also contain substituent hetero atoms, in addition to carbon and hydrogen, such as chlorine, sulfur, oxygen or nitrogen; wherein R5 is derived from a reactive olefin and can be either CH2—CHR—C(:O)O—R6; —CH2—CR7HR8; or R9—OC(:O)CH2—CH—C(:O)O—R10 where R is H or the same as R1, R6, R7, R9 and R10 are the same as R1 and R8 is a phenyl or alkyl or alkenyl substituted phenyl moiety, the moiety having from 6 to 30 carbon atoms, (b) a calcium detergent, and (c) a friction modifier.Type: GrantFiled: March 15, 2002Date of Patent: December 9, 2003Assignee: Infineum International Ltd.Inventors: Raymond F. Watts, Katherine M. Richard
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Patent number: 6642186Abstract: Organic compounds containing selected functional groups, and which are grafted with fluorinated olefins, are excellent additives for lubricants which lower wear and/or friction. They are especially useful in metal lubricants.Type: GrantFiled: October 19, 2001Date of Patent: November 4, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Richard Paul Beatty, Peter Arnold Morken
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Patent number: 6642188Abstract: The lubricating compositions of the present invention are designed for use in a four stroke outboard marine engine and contain an oil of lubricating viscosity, an ashless dispersant, a metal detergent, a rust inhibitor, a relatively high amount of ZDDP, and an amount of a molybdenum compound sufficient to provide the composition with 15-1,000 ppm by mass of molybdenum. An amount of about 15 ppm to 1,000 ppm by mass of molybdenum from a molybdenum compound has been found to be effective as an antiwear agent in combination with the high levels of ZDDP.Type: GrantFiled: July 8, 2002Date of Patent: November 4, 2003Assignee: Infineum International Ltd.Inventors: Rolfe J. Hartley, Salvatore Rea, Malcolm Waddoups
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Patent number: 6627584Abstract: The present invention provides a power transmission lubricating composition containing a base oil, a dispersant, a lubricant additive produced by the reaction of a dihydrocarbyldithio-phosphoric acid and a hydrocarbyl acrylate, and optionally a viscosity index improver. Improved friction performances in automatic and continuously variable transmissions are achieved by utilizing the fluids of the present invention in ash-free lubricating oil compositions for transmissions and axles.Type: GrantFiled: January 28, 2002Date of Patent: September 30, 2003Assignee: Ethyl CorporationInventor: Nubar Ozbalik
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Publication number: 20030181339Abstract: An power transmission fluid comprising a mixture of a major amount of a lubricating oil and an effective amount of a performance enhancing additive combination comprising: (a) at least one organic phosphate having the structure: R1—X2—P(:X1)(R2X3)—X—R5 where R1, R2, R3, and R4 may independently be substituted or unsubstituted alkyl, aryl, alkylaryl or cycloalkyl having 1 to 24 carbon atoms and X, X1, X2 and X3 may independently be sulfur or oxygen.Type: ApplicationFiled: March 15, 2002Publication date: September 25, 2003Inventors: Raymond F. Watts, Katherine M. Richard
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Publication number: 20030176299Abstract: The multifunctional lubricant according to the invention comprises at least one phosphoric ester (A) of general formula: 1Type: ApplicationFiled: December 20, 2002Publication date: September 18, 2003Inventors: Francois Guillemet, Gilles Darvaux-Hubert
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Publication number: 20030171227Abstract: Stabilising compositions for lubricant base stocks and lubricant formulations are composed of a mixture of (a) at least one aromatic aminic amine antioxidant optionally blended with at least one hindered phenolic antioxidant and (b) at least one neutral organo phosphate or phosphite, optionally blended with at least one acid organo phosphate or phosphite. These stabilising composition mixtures are characterised by their stabilising capacity which is considerably higher than that of either the single antioxidants or the single phosphate or phosphite additives. These stabilising compositions can be used in all fields where the single components of the mixtures are generally used and where deterioration due to oxidation processes takes place.Type: ApplicationFiled: November 5, 2002Publication date: September 11, 2003Inventors: Alan Holt, Gerard Mulqueen
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Publication number: 20030158052Abstract: To provide a pivot assembly bearing enable maintain it's capabilities longer under frequent quick start and quick stop, the pivot assembly bearing is dispensed a grease composition comprising a base oil, a thickener and an extreme-pressure agent.Type: ApplicationFiled: February 12, 2003Publication date: August 21, 2003Inventor: Motoharu Akiyama
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Publication number: 20030153469Abstract: The present invention provides a power transmission lubricating composition containing a base oil, a dispersant, a lubricant additive produced by the reaction of a dihydrocarbyldithio-phosphoric acid and a hydrocarbyl acrylate, and optionally a viscosity index improver. Improved friction performances in automatic and continuously variable transmissions are achieved by utilizing the fluids of the present invention in ash-free lubricating oil compositions for transmissions and axles.Type: ApplicationFiled: January 28, 2002Publication date: August 14, 2003Inventor: Nubar Ozbalik
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Patent number: 6531429Abstract: The invention relates to improved compositions comprising thiophosphoric acid esters and dithiophosphoric acid esters or phosphoric acid thioesters and oil additives from the group of the polyol partial esters, amines and epoxides, and also to the use of those lubricant compositions in improving the performance properties of lubricants, such as greases, metal-working fluids, gear fluids or hydraulic fluids. Thiophosphoric acid esters and dithiophosphoric acid esters or phosphoric acid thioesters are present in the compositions preferably in a concentration of less than 400 ppm.Type: GrantFiled: August 17, 2001Date of Patent: March 11, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: Michael Fletschinger, Peter Rohrbach, Peter Collen Hamblin, Dudley Clark, Marc Ribeaud
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Patent number: 6525005Abstract: Lubricant compositions are used on conveying systems in the beverage industry during the filling of containers with dairy products or other beverages. An antimicrobial conveyor lubricant composition according to the invention includes alkyl alkoxylated phosphate ester, antimicrobial agent comprising at least one of quaternary ammonium antimicrobial agent and protonated amine antimicrobial agent, extreme pressure additive, water, and neutralizing agent in an amount sufficient to provide a use solution having a pH in the range of about 4 to about 9. The composition can include an extreme pressure additive and/or a corrosion inhibitor. A method for using an antimicrobial lubricant composition is provided.Type: GrantFiled: May 26, 2000Date of Patent: February 25, 2003Assignee: Ecolab Inc.Inventors: Joseph I. Kravitz, Joy G. Herdt, Kimberly L. Person Hei, Michael E. Besse
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Patent number: 6482777Abstract: This invention relates to a lubricating composition comprising a blend of a major amount of an oil of lubricating viscosity, gear or transmission oil package and a top treatment which comprises at least one saturated fatty phosphate ester or salt, wherein the lubricating composition is free of saturated fatty phosphites. Tin another embodiment, the invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity, at least one saturated fatty phosphate ester or salt, at least one polysulfide and at least one phosphorus antiwear or extreme pressure agent, wherein the lubricating composition is free of saturated fatty phosphites. The invention relates to additive combinations which when added to a lubricant can provide and improve frictional and, optionally, thermal stability properties. The additives include a phosphate ester or salt wherein the hydrocarbyl group of the phosphate is a fatty-saturated group.Type: GrantFiled: October 19, 1999Date of Patent: November 19, 2002Assignee: The Lubrizol CorporationInventor: Robert W. Cain
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Patent number: 6426323Abstract: To provide a lubricating oil composition for continuously variable transmission which ensures both a high coefficient of friction between metals required for a push belt-type CTV oil and an excellent wear preventing property relative to a belt and a pulley. A lubricating oil composition for continuously variable transmission is provided, which comprises a lubricating base oil made of a mineral oil and/or a synthetic oil formulated with a metal detergent and a phosphorus-based wear preventive characterized in that a ratio between a content (ppm) of a metal derived from said metal detergent and based on the total weight of the lubricating oil composition and a total base number (mg KOH/g) ranges 0.75-4.5 (ppm/mg KOH/g), and a ratio between the content (ppm) of the metal derived from said metal detergent and a content of phosphorus derived from said phosphorus-based wear preventive ranges 0.5-2.0 (ppm/ppm).Type: GrantFiled: June 5, 2001Date of Patent: July 30, 2002Assignee: TonenGeneral Sekiyu K.K.Inventors: Takehisa Sato, Takanori Kugimiya
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Publication number: 20020086802Abstract: This invention relates to a lubricating composition comprising a blend of a major amount of an oil of lubricating viscosity, gear or transmission oil package and a top treatment which comprises at least one saturated fatty phosphate ester or salt, wherein the lubricating composition is free of saturated fatty phosphites. Tin another embodiment, the invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity, at least one saturated fatty phosphate ester or salt, at least one polysulfide and at least one phosphorus antiwear or extreme pressure agent, wherein the lubricating composition is free of saturated fatty phosphites. The invention relates to additive combinations which when added to a lubricant can provide and improve frictional and, optionally, thermal stability properties. The additives include a phosphate ester or salt wherein the hydrocarbyl group of the phosphate is a fatty-saturated group.Type: ApplicationFiled: October 19, 1999Publication date: July 4, 2002Inventor: ROBERT W. CAIN
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Publication number: 20020006881Abstract: Lubricating solutions are used on conveying systems in the beverage industry during the filling of containers with dairy products or other beverages.Type: ApplicationFiled: January 15, 1999Publication date: January 17, 2002Inventors: JOSEPH I. KRAVITZ, JOY G. HERDT, KIMBERLY L. PERSON HEI, MICHAEL E. BESSE