With Organic Phosphorus Compound Patents (Class 508/282)
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Patent number: 10633607Abstract: A fluid contains a base oil and an antioxidant, the base oil consisting of sulfur-containing polyalkylene glycol where greater than 80 weight-percent of the fluid is a sulfur-containing polyalkylene glycol and less than one weight-percent of the fluid is water, with weight percent based on total fluid weight an wherein the sulfur-containing polyalkylene glycol is free of oxygen bound directly to sulfur.Type: GrantFiled: August 17, 2016Date of Patent: April 28, 2020Assignee: Dow Global Technologies LLCInventors: Martin R. Greaves, Ronald Van Voorst, Marinus Meertens
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Patent number: 9296976Abstract: The lubricating oil composition of the invention comprises a lubricant base oil, a 3,4,5-trihydroxybenzoic acid ester at 5-5000 ppm by mass, and a phosphorus compound at 0.001-10.0% by mass, based on the total mass of the lubricating oil composition. The lubricating oil composition of the invention significantly lowers wear and exhibits a stable low frictional coefficient, while having a high rust-preventing effect for iron-based sliding sections. The lubricating oil composition of the invention is therefore suitable for prolonged use, and exhibits a notable effect for energy savings as well due to its stable low frictional coefficient property.Type: GrantFiled: December 10, 2010Date of Patent: March 29, 2016Assignee: JX NIPPON OIL & ENERGY CORPORATIONInventors: Tomonari Matsumoto, Fumiyuki Nara, Takeshi Okido, Katsuya Takigawa
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Publication number: 20140303053Abstract: 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: ApplicationFiled: October 25, 2012Publication date: October 9, 2014Inventor: Martin R. Greaves
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Publication number: 20140162913Abstract: Disclosed are corrosion-inhibiting lubricant compositions and methods of making and using the compositions. The lubricant compositions contain petroleum based components, corrosion-inhibiting additives and a cationic surfactant. In some embodiments, the lubricant compositions also contain nano diamonds. Under standard salt fog tests, compositions exhibited 120 or 168 hours to failure, or 0-20% rust at 192 hours. Under standard wear preventative characteristics tests, compositions exhibited as low as 0.55 mm wear. Also disclosed are a device and method for aerosol delivery of a corrosion-inhibiting lubricant.Type: ApplicationFiled: July 25, 2012Publication date: June 12, 2014Inventor: David McCreery
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Publication number: 20140045736Abstract: The present invention relates to a synergistic combination of an antioxidant and an antiwear additive that results in improved antioxidancy performance in turbine, hydraulic, and other industrial lubricating compositions. The invention further relates to the processes to make the improved lubricating compositions and methods of their use in industrial fluids.Type: ApplicationFiled: May 14, 2012Publication date: February 13, 2014Applicant: THE LUBRIZOL CORPORATIONInventors: Seth L. Crawley, Betsy J. Butke
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Patent number: 8557754Abstract: A composition of biodegradable gear oil that mainly contains modified nontauedible vegetable oils. Mono-esters are hydrogenated, epoxidized or aryl alkylated or mixture thereof, and C7 to C12 primary alcohol. In addition to chemically modified non-edible vegetable oils, the composition also contains an additive pack, which comprises at least one: antioxidant, an extreme pressure additive, an anti foaming agent, a pour point depressant, a corrosion inhibitor and a detergent-dispersant additive. The product of this invention has utility as industrial and automotive gear oil GL 4 grade. The compositions are significantly biodegradable, eco-friendly, reduce use of petroleum, have lower cost than synthetic oil, are miscible in mineral & synthetic fluids and safe to use due to higher flash point.Type: GrantFiled: March 5, 2009Date of Patent: October 15, 2013Assignee: Counsel of Scientific & Industrial ResearchInventors: Arun Kumar Singh, Aruna Chamoli
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Publication number: 20130217605Abstract: The present invention is a lubricant or functional fluid additive for a polyolefin oil blend, comprising a mixture of: (a) an anti-wear component consisting essentially of 95% isopropylated triarylphosphate and 5% dodecyl phosphate, the dodecyl phosphate being only partially esterified, the anti-wear component present in the polyolefin oil blend in a range of from about 0.75 percent to about 2.00 percent by weight; (b) an antioxidant component selected from the group consisting of alkylated phenyl-alpha-naphthylamine, phenyl-alpha-naphthylamine and mixtures thereof, and present in the polyolefin oil blend in a range of from about 0.75 percent to about 2.00 percent by weight; (c) an anti-rust component comprising an alkylated succinic acid ester anti-rust agent, and present in the polyolefin oil blend in a range of from about 0.050 percent to about 0.Type: ApplicationFiled: March 21, 2013Publication date: August 22, 2013Applicant: Materials Engineering and Technical Support Services Corp., dba METSS CorporationInventor: Materials Engineering and Technical Support Services Corp., dba METSS Corporation
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Publication number: 20130157909Abstract: Lubricant compositions including a random or block copolymer first high-EO content polyalkylene glycol, a random copolymer second polyalkylene glycol based on propylene oxide and butylene oxide or a second polyalkylene homopolymer having propylene oxide or butylenes oxide units and at least one corrosion inhibitor selected from the group of sarcosines, amine phosphates, and calcium dinonylnaphthalenesulfonate/carboxylates are provided. Lubricant compositions for extreme conditions are also provided.Type: ApplicationFiled: August 17, 2011Publication date: June 20, 2013Applicant: Dow Global Technologies LLCInventors: Martin R. Greaves, Daniel Zweifel, Evelyn A. Zaugg-Hoozemans
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Publication number: 20120101015Abstract: Described is a lubricating composition of an anti-wear agent or a combination of anti-wear agents having a reduced neurotoxicity, the anti-wear agent(s) being selected from triaryl phosphate compounds preferably substituted with one or more linear or branched alkyl group(s) including from 2 to 12 carbon atoms.Type: ApplicationFiled: June 23, 2010Publication date: April 26, 2012Applicant: NYCO SAInventors: Pascal Frapin, Issa Latif, Christophe Corbun, Jean-Louis Mansoux
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Publication number: 20110207638Abstract: A composition of biodegradable gear oil that mainly contains modified nontauedible vegetable oils. Mono-esters are hydrogenated, epoxidized or aryl alkylated or mixture thereof, and C7 to C12 primary alcohol. In addition to chemically modified non-edible vegetable oils, the composition also contains an additive pack, which comprises at least one: antioxidant, an extreme pressure additive, an anti foaming agent, a pour point depressant, a corrosion inhibitor and a detergent-dispersant additive. The product of this invention has utility as industrial and automotive gear oil GL 4 grade. The compositions are significantly biodegradable, eco-friendly, reduce use of petroleum, have lower cost than synthetic oil, are miscible in mineral & synthetic fluids and safe to use due to higher flash point.Type: ApplicationFiled: March 5, 2009Publication date: August 25, 2011Inventors: Arun Kumar Singh, Aruna Chamoli
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Publication number: 20110065617Abstract: The present invention relates to a lubricating composition containing an oil of lubricating viscosity, a metal containing antiwear agent and a metal containing dispersant. The invention further provides for a method for lubricating a hydraulic system.Type: ApplicationFiled: November 18, 2010Publication date: March 17, 2011Applicant: THE LUBRIZOL CORPORATIONInventor: Allan Barber
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Patent number: 7294607Abstract: The present invention relates to a lubricant composition exhibiting enhanced load-carrying capacity and oxidative/corrosion stability. The lubricant composition of the present invention comprises a major portion of an aliphatic ester base oil having lubrication properties and formed by the reaction of pentaerythritol and an organic carboxylic acid. The lubricant composition further comprises 3-(di-isobutoxy-thiophosphonylsulfanyl)-2-methyl-propionic acid (DITMPA) as an additive comprising from about 0.01 to about 0.40 weight percent of the fully formulated lubricating oil composition as well as yellow metal passivator comprising from about 0.01 to about 0.40 weight percent of the fully formulated lubricating oil composition. The enhanced load-carrying capacity and oxidative/corrosion stability of lubricant compositions containing DITMPA and yellow metal passivator is achieved without deleteriously affecting other salient properties of the lubricant.Type: GrantFiled: August 21, 2003Date of Patent: November 13, 2007Assignee: BP Corporation North America Inc.Inventors: Patrick E. Godici, David G. V. Jones, Kim E. Fyfe
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Patent number: 6919300Abstract: A protective lubricating composition is provided which will penetrate readily to closely fitting frictional parts and form a protective non-migrating lubricating film improving lubrication between the moving parts reducing friction and wear and preventing corrosion. The lubricant composition may be combined with solvents and propellants to make a sprayable lubricant composition.Type: GrantFiled: July 2, 2002Date of Patent: July 19, 2005Assignee: Ashland Inc.Inventors: Michael A. Dituro, Richard J. Baumgart, Mandeep S. Saini, Christopher J. Nonevski
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Patent number: 6858567Abstract: The first lubricating oil composition of the invention comprises a polyol ester (A) as a base oil, a specific amount of a viscosity index improver (B) and a specific amount of an anti-wear agent (C), and the second lubricating oil composition of the invention comprises a paraffinic hydrocarbon oil (F) having at least 30 carbon atoms and a specific amount of a viscosity index improver (B), so that these compositions exert effects that they enable a life of watch battery to last long, they enable a watch to operate in the temperature range of ?30 to 80° C. with one kind of a lubricating oil, and they are free from change of properties over a long period of time.Type: GrantFiled: February 8, 2001Date of Patent: February 22, 2005Assignee: Citizen Watch Co., Ltd.Inventor: Yuji Akao
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Publication number: 20040072701Abstract: The present invention relates to a lubricant composition exhibiting enhanced load-carrying capacity and oxidative/corrosion stability. The lubricant composition of the present invention comprises a major portion of an aliphatic ester base oil having lubrication properties and formed by the reaction of pentaerythritol and an organic carboxylic acid. The lubricant composition further comprises 3-(di-isobutoxy-thiophosphonylsulfanyl)-2-methyl-propionic acid (DITMPA) as an additive comprising from about 0.01 to about 0.40 weight percent of the fully formulated lubricating oil composition as well as yellow metal passivator comprising from about 0.01 to about 0.40 weight percent of the fully formulated lubricating oil composition. The enhanced load-carrying capacity and oxidative/corrosion stability of lubricant compositions containing DITMPA and yellow metal passivator is achieved without deleteriously affecting other salient properties of the lubricant.Type: ApplicationFiled: August 21, 2003Publication date: April 15, 2004Inventors: Patrick E. Godici, David G. V. Jones, Kim E. Fyfe
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Patent number: 6645920Abstract: A lubricating oil composition containing in oxidation inhibitor package, a rust inhibitor and metal deactivator is used in industrial fluids. The oxidation package contains alkylated diphenylamines, substituted hydrocarbyl monosulphides and optionally sterically hindered phenols. The rust inhibitor contains at least 1 of alkylated amine salts of alkylphosphoric acid, dialkyldithiophosphoric acid or hydrocarbyl aryl sulphonic acids. The metal deactivator is 5-methylbenzotriazole.Type: GrantFiled: November 14, 2002Date of Patent: November 11, 2003Assignee: The Lubrizol CorporationInventor: Betsy J. Butke
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Patent number: 6573223Abstract: The invention relates to a lubricating composition comprising: (a) at least one sulfur-free hydrocarbyl phosphoric acid ester or salt, (b) at least one sulfur-containing hydrocarbyl phosphoric acid or salt, (c) an organic polysulfide, (d) at least one dispersant, and (e) at least one triazole metal deactivator. The composition may also include a thiadiazole derivative. This additive combination provides good antiwear and thermal stability properties, even under severe thermal conditions. These compositions also have good demulsibility properties. The above combination of additives provides the antiwear and extreme-pressure protection necessary for automotive and industrial gear applications. These additives additionally provide this protection without adversely effecting demulsibility properties of the lubricant.Type: GrantFiled: March 4, 2002Date of Patent: June 3, 2003Assignee: The Lubrizol CorporationInventor: James N. Vinci
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Publication number: 20030050197Abstract: The first lubricating oil composition of the invention comprises a polyol ester (A) as a base oil, a specific amount of a viscosity index improver (B) and a specific amount of an anti-wear agent (C), and the second lubricating oil composition of the invention comprises a paraffinic hydrocarbon oil (F) having at least 30 carbon atoms and a specific amount of a viscosity index improver (B), so that these compositions exert effects that they enable a life of watch battery to last long, they enable a watch to operate in the temperature range of −30 to 80° C. with one kind of a lubricating oil, and they are free from change of properties over a long period of time.Type: ApplicationFiled: October 9, 2001Publication date: March 13, 2003Inventor: Yuji Akao
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Publication number: 20020117648Abstract: Disclosed are phosphate ester base fluids and aircraft hydraulic fluids containing a novel combination of phosphate ester components. The disclosed aircraft hydraulic fluids contain from about 30 to about 45 weight percent, based on the total weight of the fluid, of tri-iso-butyl phosphate; from about 30 to about 45 weight percent, based on the total weight of the fluid, of tri-n-butyl phosphate; from about 10 to about 15 weight percent, based on the total weight of the fluid, of one or more triaryl phosphates; and an effective amount of a viscosity index improver, an acid control additive and an erosion inhibitor.Type: ApplicationFiled: September 28, 2001Publication date: August 29, 2002Inventors: Mark E. Okazaki, Adrian D'Souza, Shlomo Antika
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Patent number: 6194359Abstract: The operational fluid according to the invention is well suited for the lifelong lubrication and cooling of combustion engines. It comprises as the basic fluid a polyalkylene glycol produced from ethylene oxide and propylene oxide and an additive mixture comprising a) 0.012-1.0 percent by weight of a reaction product of diphenyl amine and 2,4,4-trimethyl pentene; b) 0.01-1.0 percent by weight of a pentaerythritol partially or completely esterified with an alkyl-substituted p-hydroxy propionic acid; c) 0.01-1.0 percent by weight of a mono- or di-(C4-C8) alkyl phosphoric acid (C10-C15) alkyl amide; d) 0.01-1.0 percent by weight of triphenyl thiophosphate; e) 0.01-0.1 percent by weight of a tolutriazol amino-methylated with a straight-chain or branched alkyl group with 2-10 carbon atoms, and/or f) 0.01-0.1 percent by weight of 1H-benzotriazol.Type: GrantFiled: May 14, 1999Date of Patent: February 27, 2001Assignees: Fragol Schmierstoff GmbH & Co. KG, DaimlerChrysler AGInventors: Ludwig Beyer, Herbert Gasthuber, Heiner Müske, Mathias Woydt
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Patent number: 5955403Abstract: A sulfur free lubricating composition comprises a major portion of a synthetic base lubricating oil and a minor portion of a tri(alkyl phenyl) phosphate or di(alkylphenyl)phosphoric acid antiwear agent, an amine antioxidant a substituted succinamide rust inhibitor and a tolytriazole. The tri(alkylphenyl)phosphate antiwear agent is incorporated in the oil in an amount ranging between about 0.1 to 2.0 wt % and the amine antioxidant in amount ranging from about 0.1 to 5 wt %. The succinamide is present in an amount ranging from about 0.01 to 0.5 wt % and the tolytriazole, from about 0.01 to 0.5 wt %. In the foregoing, the wt % is based on the weight of oil.Type: GrantFiled: March 24, 1998Date of Patent: September 21, 1999Assignee: Exxon Research and Engineering CompanyInventor: Chung-Lai Wong
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Patent number: 5885942Abstract: The multifunctional lubricant additive compositions of the invention preferably contain a methylene bis(dibutyldithiocarbamate) as an antiwear and extreme pressure additive, a 2,5-dimercapto-1,3,4-thiadiazole derivative as an antioxidant and antiwear additive, a tolutriazole compound as an antioxidant and corrosion inhibitor, a glycerol monooleate as a friction modifier, a calcium sulfonate as a detergent and extreme pressure additive, a zinc dialkyl dithiophosphate as an antiwear and antioxidant additive, a polymethylacrylate as a dispersant, a polyol ester as a carrier and friction modifier, a red dye for leak detection, and optionally, solvent neutral oil and a pour point depressant.Type: GrantFiled: September 23, 1997Date of Patent: March 23, 1999Assignee: NCH CorporationInventors: Ruiming Zhang, Robert M. Hooks
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Patent number: 5756430Abstract: Mist oil lubricants are disclosed based on polycarboxylic acid esters as the base oil which have added 1 to 5% of polyisobutylene Mn 400-2500 as stray mist suppressants.Type: GrantFiled: May 13, 1997Date of Patent: May 26, 1998Assignee: Exxon Chemical Patents IncInventor: James Zielinski
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Patent number: 5536423Abstract: A hydraulic working oil composition for buffers which comprises:a lubricating oil as a base oil,(A) at least one phosphorus-containing compound selected from the group consisting of a phosphoric acid ester having a specific structure, a phosphorous acid ester having a specific structure and a salt of-the phosphoric acid ester and/or the phosphorous acid ester with an aliphatic monoamine having 8-22 carbon atoms, and(B) at least one nitrogen-containing compound selected from the group consisting of an aliphatic polyamine having a specific structure and a salt of the aliphatic polyamine with an aliphatic acid having 6 carbon atoms, the compounds (A) and (B) being essential components added to said base oil.Type: GrantFiled: February 8, 1995Date of Patent: July 16, 1996Assignee: Nippon Oil Co., Ltd.Inventors: Toru Miyagawa, Mitsuo Okada
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Patent number: 5531912Abstract: A stearate free solid lubricant for cold working of metals contains approximately equal amounts of an alkene-acrylate ionomer and an alkoxylated alcohol in which the alcohol moiety has from 18-60 carbon atoms and the alkoxylate block has about the same number of carbon atoms. This lubricant can be conveniently applied from aqueous solution/suspension and works effectively even when the underlying steel surface has no conversion coating, which is usually required with stearate lubricants for best results.Type: GrantFiled: September 2, 1994Date of Patent: July 2, 1996Assignee: Henkel CorporationInventors: Richard J. Church, Kenneth J. Hacias
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Patent number: RE37101Abstract: A fluid composition suitable for use as an aircraft hydraulic fluid is disclosed. The fluid composition comprises a fire resistant phosphate ester base stock comprising between about 10% and about 100% by weight of a trialkyl phosphate, between about 0% and about 70% by weight of a dialkyl aryl phosphate, and from about 0% to about 25% by weight of an alkyl diaryl phosphate, with the proviso that the sum of the proportionate amount of each base stock component must equal 100%. The alkyl substituents of the trialkyl phosphate, the dialkyl aryl phosphate, and the alkyl diaryl phosphate contain between 3 and 8 carbon atoms, preferably between 4 and 8 carbon atoms, more preferably between 4 and 5 carbon atoms, and are bonded to the phosphate moiety via a primary carbon. It is still further preferred that the alkyl substituents of the trialkyl phosphate, the dialkyl aryl phosphate, and the alkyl diaryl phosphate are isoalkyl groups.Type: GrantFiled: November 7, 1997Date of Patent: March 20, 2001Assignee: Solutia Inc.Inventor: Gerbrand Deetman