Organic P Containing Compounds Patents (Class 252/78.5)
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Patent number: 11052346Abstract: A membrane device and separation process are presented to enable removal of water from water-containing mixtures at high throughput and high energy efficiency. The membrane device is made of thin H2O-selective molecular sieve membrane sheets with small feed channels and small permeate channels. The thin membrane sheet provides H2O-molecular specificity and allows H2O molecule to permeate through while blocking the other molecules. The membrane device provides large membrane area per unit volume and reduces mass transfer and flow resistance. Water is removed from the mixture by flowing the water-containing mixture through the feed channels of the device at a pressure above atmospheric pressure and removing the permeated water vapor from the permeate channels in the device under vacuum.Type: GrantFiled: December 28, 2018Date of Patent: July 6, 2021Assignee: Molecule Works Inc.Inventor: Wei Liu
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Patent number: 10138440Abstract: 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: GrantFiled: February 8, 2016Date of Patent: November 27, 2018Assignee: IDEMITSU KOSAN CO., LTD.Inventor: Aya Aoki
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Patent number: 10106759Abstract: This disclosure is directed to an additive package for a lubricant composition that provides improved compatibility with fluoropolymer seals. The additive package comprises a seal compatibility additive. The disclosure is also directed to a lubricant composition comprising a base oil and a seal compatibility additive. The seal compatibility additive improves the compatibility with fluoropolymer seals of the resultant lubricant composition.Type: GrantFiled: April 22, 2014Date of Patent: October 23, 2018Assignee: BASF SEInventors: Kevin DeSantis, Michael Hoey, Al Jung, Phil Rabbat, David Chasan, Stephen Jones
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Patent number: 9920277Abstract: A concentrated metalworking fluid comprising from 60 to 90 percent by weight base oil selected from the group consisting of water soluble polyalkylene glycols, methoxypolyethylene glycols, polyethylene glycols, and combinations of two or more thereof; from 5 to 20 percent by weight glycol ether; from 0.01 to 5 percent by weight oil soluble polyalkylene glycol; and from 0.2 to 6 percent by weight one or more additives selected from the group consisting of anti-weld agents, corrosion inhibitors, extreme pressure additives, buffers, biocides, lubricity additives, and combinations of two or more thereof is provided. Further provided is a metalworking process.Type: GrantFiled: December 12, 2012Date of Patent: March 20, 2018Assignee: Dow Global Technologies LLCInventors: Jiangbo Ma, Martin R. Greaves, Zhouwei Yu
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Patent number: 9650586Abstract: The present disclosure relates to methods, systems, hydraulic fluids and additives for reducing the rate of surface current degradation for components in a hydraulic system, wherein the hydraulic system is exposed to phosphate-ester-based hydraulic fluid.Type: GrantFiled: July 23, 2013Date of Patent: May 16, 2017Assignee: The Boeing CompanyInventor: Harold E. Hager
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Patent number: 9546339Abstract: 1-[di(4-octylphenyl)aminomethyl]tolutriazole is prepared in a mineral oil and blended with a liquid alkylated diphenylamine. The liquid product shows increased storage stability with respect to crystallization of the 1-[di(4-octylphenyl)aminomethyl]tolutriazole when the amine is added. This blend product can be stored for a prolonged period of time, and then utilized in a lubricant composition as an antioxidant and corrosion inhibitor.Type: GrantFiled: May 16, 2014Date of Patent: January 17, 2017Assignee: VANDERBILT CHEMICALS, LLCInventors: Steven G. Donnelly, Kevin J. Chase, William T. Wallack
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Patent number: 9546338Abstract: The present disclosure relates to methods, systems, hydraulic fluids and additives for reducing the rate of surface current degradation for components in a hydraulic system, wherein the hydraulic system is exposed to phosphate-ester-based hydraulic fluid.Type: GrantFiled: January 29, 2016Date of Patent: January 17, 2017Assignee: THE BOEING COMPANYInventor: Harold E Hager
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Patent number: 9410105Abstract: A lubricant composition including an epoxide compound is disclosed. An additive package including the epoxide compound is also disclosed. The epoxide compound of the lubricant composition acts to improve compatibility of the lubricant composition with a fluoropolymer seal and improve the total base number of the lubricant composition.Type: GrantFiled: November 15, 2013Date of Patent: August 9, 2016Assignee: BASF SEInventors: Kevin J. DeSantis, Michael D. Hoey, Alfred Karl Jung, Phil Rabbat, Stephen Jones
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Publication number: 20140070135Abstract: Disclosed herein is a heat transfer fluid additive composition comprising: greater than or equal to 10 weight percent (wt %) of a carboxylic acid, based on the total weight of the composition; an azole compound; and a base, wherein the base is present in an amount sufficient to obtain a pH 8-10.5 when diluted by 50 volume % with water. The heat transfer fluid additive composition can be combined with other components to form a heat transfer fluid. The heat transfer fluid can be used in a heat transfer system.Type: ApplicationFiled: September 7, 2012Publication date: March 13, 2014Applicant: PRESTONE PRODUCTS CORPORATIONInventors: Bo Yang, Aleksei V. Gershun, Peter M. Woyciesjes
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Patent number: 8591762Abstract: The technology of this invention relates to an aqueous heat transfer solution exhibiting enhanced stability as well as thermal conductivity. The solution comprises silicon oxide nanoparticles, to which a freezing point depressant may potentially be added. The solution provides protection against forms of corrosion for use in applications where cooling is critical. The invention also covers the use of a concentrate as well as the dilution made from the concentrate.Type: GrantFiled: October 21, 2011Date of Patent: November 26, 2013Assignee: Chevron U.S.A. Inc.Inventors: Serge S. Lievens, Jurgen P. De Kimpe
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Publication number: 20120168672Abstract: Compositions comprising CF3CClFCH2OH, CF3CClFCH2OZnCl, and CF3CClFCH2OC(?O)CH3 are useful in processes to make HFO-1234yf. Compositions comprising HFO-1234yf may comprise at least one additional compound selected from the group consisting of CFC-114a, HCFC-124, HFC-143a, CFO-1113, HFO-1123, HFO-1132a, tetrafluoroethene, HCFO-1122, 3,4,4,4-tetrafluoro-2-butanone, acetyl fluoride, 2-chloro-2,3,3,3-tetrafluoropropanol, 2-chloro-2,3,3,3-tetrafluoropropyl acetate, Zinc (2-chloro-2,3,3,3-tetrafluoropropoxy)chloride, 2-chloro-2,3,3,3-tetrafluoropropoxy methyl acetate, 1,3-bistrifluoromethyl-1,3-difluorocyclobutane, 2,3,3,3-tetrafluoropropyl acetate, dimethylformamide, pyridine, ethyl acetate, acetic acid, diethyl ether, acetic anhydride, methyl acetate, dimethylacetamide, methanol, ethanol, methyl formate, pyrazine, pyrimidine, N-methylpyrrolidine, N-methylpiperidine, hexamethylphosphoramide, tetrahydrofuran, 1,4-dioxane, N-methylpyrrolidinone, dimethyl sulfoxide, acetonitrile, benzonitrile, and mixtures thereof.Type: ApplicationFiled: February 27, 2012Publication date: July 5, 2012Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Mario Joseph Nappa, Xuehui Sun
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Publication number: 20120128869Abstract: The present disclosure generally relates to methods and systems for forming phase change material composites and to the thus formed phase change material composites. In some examples, a method for forming a phase change material (PCM) composite may include dispersing nanowire material in a nonpolar solvent to form a nanowire-solvent dispersion, adding a PCM to the nanowire-solvent dispersion to form a nanowire-solvent-PCM dispersion, heating the nanowire-solvent-PCM dispersion, and removing the solvent.Type: ApplicationFiled: September 29, 2010Publication date: May 24, 2012Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLCInventor: Seth Adrian Miller
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Patent number: 7910529Abstract: There is disclosed herein novel functional fluids useful as aircraft hydraulic fluids comprising at least about 50% trialkyl phosphate ester and at least one aryl compound whereby the fluid exhibits in combination the fire resistant properties as indicated by a fire point in excess of 177° C., a flash point of at least 160° C. and an autoignition temperature of at least 400° C. The trialkyl phosphate esters contain between 6 and 18 carbon atoms and preferably between 12 and 15 carbon atoms. The aryl compounds are most preferably polyphenyls, fused ring aryl compound containing from 5 to 24 carbon atoms in the aryl portion such as biphenyl or terphenyl or alkyl substituted polyphenyls wherein the alkyl groups contain from 1 to 5 carbon atom. Other aryl compounds includes fused ring aryl compounds such as naphthalene, anthracene, diphenyl oxide and the like.Type: GrantFiled: November 3, 2004Date of Patent: March 22, 2011Assignee: Solutia, Inc.Inventors: Terry Calvin Wolfe, Patrick P. B. Notté
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Publication number: 20100204074Abstract: Disclosed are ionic liquids that have a low melting point. Said liquids are provided in the form of compounds that are selected among the group comprising tetraalkyl ammonium salts, benzyl trialkyl ammonium salts, tetraalkyl phosphonium salts, and benzyl trialkyl phosphonium salts, provided that at last two alkyl groups represent aliphatic radicals with chain lengths ranging from 8 to 10 C atoms, and provided that not all alkyl radicals are identical.Type: ApplicationFiled: February 23, 2007Publication date: August 12, 2010Applicant: COGNIS IP MANAGEMENT GMBHInventors: Hendrik Huesken, Paul Birnbrich, Gilbert Schenker
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Patent number: 7754097Abstract: Disclosed is a method of simultaneously stabilizing an engine coolant concentrate and preventing hard water salt formation upon dilution of the coolant concentrate with hard water. The method comprises making a stabilized concentrate by adding to a coolant concentrate at least one stabilizer selected from the group consisting of polyacrylate polymers of the formula: where Rl is H; R4 is a terminating group; X is and R2 and R3 are each independently hydrogen, an alkali metal or an alkaline earth metal, and the sum of m and n provide a number average equivalent weight of less than 6500, and a number average molecular weight of less than 6500, the concentrate comprising 90 or more wt % freezing point depressant and then diluting the stabilized coolant concentrate with hard water to provide a final coolant composition.Type: GrantFiled: August 14, 2006Date of Patent: July 13, 2010Assignee: Honeywell International Inc.Inventor: Peter M. Woyciesjes
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Patent number: 7744775Abstract: In one embodiment, a corrosion inhibiting composition is formed by combining: (a) an inorganic phosphate; (b) a water soluble polyelectrolyte polymer dispersant; (c) a tri or tetracarboxylic acid; and (d) at least one additional component comprising at least one of a C4-C22 aliphatic or aromatic mono- or dicarboxylic acid, a silicate and at least one of a silicone or a silicate stabilizing siloxane compound, and mixtures thereof. Also disclosed are heat transfer fluids that include about 5% to about 99% by weight of freezing point-depressing agent; about 1% to about 95% by weight of water; and the disclosed corrosion inhibitor composition. A method of reducing corrosion in a heat transfer system containing one or more components that contain magnesium or a magnesium alloy requires that the system and the magnesium containing components be in contact with the disclosed heat transfer fluid.Type: GrantFiled: November 17, 2009Date of Patent: June 29, 2010Assignee: Honeywell International Inc.Inventors: Bo Yang, Filipe J. Marinho
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Patent number: 7645331Abstract: In one embodiment, a corrosion inhibiting composition is formed by combining: (a) an inorganic phosphate; (b) a water soluble polyelectrolyte polymer dispersant; (c) a tri or tetracarboxylic acid; and (d) at least one additional component comprising at least one of a C4-C22 aliphatic or aromatic mono- or dicarboxylic acid, a silicate and at least one of a silicone or a silicate stabilizing siloxane compound, and mixtures thereof. Also disclosed are heat transfer fluids that include about 5% to about 99% by weight of freezing point-depressing agent; about 1% to about 95% by weight of water; and the disclosed corrosion inhibitor composition. A method of reducing corrosion in a heat transfer system containing one or more components that contain magnesium or a magnesium alloy requires that the system and the magnesium containing components be in contact with the disclosed heat transfer fluid.Type: GrantFiled: October 25, 2006Date of Patent: January 12, 2010Assignee: Honeywell International Inc.Inventors: Bo Yang, Filipe J. Marinho
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Publication number: 20090289215Abstract: The present invention relates to an antifreeze coolant composition, and particularly to an antifreeze coolant composition comprising mercaptobenzothiazole as a heat-oxidation resistant agent, alkylbenzoate as a heat-oxidation resistant enhancer and dinonylnaphthalene sulfate as an anti-settling agent.Type: ApplicationFiled: November 25, 2008Publication date: November 26, 2009Applicants: Hyundai Motor Company, Kia Motors CorporationInventor: Dae Yun Bae
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Patent number: 7582225Abstract: This application discloses a high performance hydraulic fluid suitable for use as an aircraft hydraulic fluid comprising a major amount of tri(n-butyl)phosphate, a minor amount of a triaryl phosphate and optionally a minor amount of tri(isobutyl)phosphate. The compositions of this invention provide superior performance with respect to flash and fire points as well as extended useful fluid life in service. Such properties are highly valuable as hydraulic fluids modern jet aircrafts.Type: GrantFiled: June 14, 2005Date of Patent: September 1, 2009Assignee: Solutia, Inc.Inventor: Terry Calvin Wolfe
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Patent number: 7255808Abstract: A phosphate ester-based functional fluid composition incorporating at least one erosion inhibitor selected from the erosion inhibitors of the invention. The phosphate ester-based functional fluids are particularly useful as aviation hydraulic fluids.Type: GrantFiled: November 4, 2003Date of Patent: August 14, 2007Assignee: Solutia, Inc.Inventors: David C. Silverman, Timothy K. Hirzel
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Patent number: 7030067Abstract: The present invention provides for the use of bis(perfluoroalkanesulfonyl)imide and its salts as surfactants or additives applications having an extreme environment.Type: GrantFiled: February 24, 2003Date of Patent: April 18, 2006Assignee: 3M Innovative Properties CompanyInventors: William M. Lamanna, Patricia M. Savu, Michael J. Parent, Lawrence A. Zazzera
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Patent number: 7018559Abstract: A phosphate ester-based functional fluid composition that generates reduced levels of carboxylic acid during use by incorporating at least one acid scavenger selected from the epoxides of the invention. The phosphate ester-based functional fluids are particularly useful as hydraulic fluids.Type: GrantFiled: May 8, 2001Date of Patent: March 28, 2006Assignee: Solutia Inc.Inventors: Jingen Zhang, Mark E. Jason, Terry C. Wolfe
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Patent number: 6984340Abstract: The present invention relates to formulations for corrosion-inhibiting, emulsifying, lubricating or as a surfactant in organic hydrocarbon and/or water based system containing an acyl amino acid derivative and a triazole derivative.Type: GrantFiled: September 22, 2000Date of Patent: January 10, 2006Assignee: Brad-Chem Technology LimtiedInventors: Arthur Albert Brady, Brian George Clubley
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Patent number: 6828286Abstract: Lubricant compositions comprises a lubricant base oil and one or more compounds resulting the modification of a succinimide represented by formula (1) or (2) wherein R1 and R2 may be the same or different and are each independently a hydrocarbon group having 8 to 30 carbon atoms, R3 and R4 may be the same or different and are each independently a hydrocarbon group having 1 to 4 carbon atoms, R5 is hydrogen or a hydrocarbon group having 1 to 30 carbon atoms, n is an integer from 1 to 7. The lubricant compositions have a long-lasting anti-shudder property, an enhanced transmission capacity for a wet clutch, and an excellent shifting property.Type: GrantFiled: April 10, 2003Date of Patent: December 7, 2004Assignee: Nippon Mitsubishi Oil CorporationInventors: Kenichi Komiya, Naozumi Arimoto, Noboru Ishida, Shinichi Shirahama, Eitaro Morita
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Patent number: 6703355Abstract: The present invention is a method for operating a hydraulic system at pressures of about 4000 psi or higher, preferably about 5000 psi or higher by using as the lubricant a phosphate ester hydraulic oil comprising a fire resistant phosphate esters base stock, a viscosity index improver, an anti erosion agent, an acid scavenger. The fluid used in the present method can also contain rust inhibitors and/or antioxidants.Type: GrantFiled: August 3, 2001Date of Patent: March 9, 2004Assignee: ExxonMobil Research and Engineering CompanyInventors: Shlomo Antika, Marc-Andre Poirier, Jean-Michel Pascual, Gerard Dallemagne
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Patent number: 6652772Abstract: Disclosed are phosphate ester base fluids and aircraft hydraulic fluids containing mixed n-butyl/isobutyl phosphate ester components. The disclosed aircraft hydraulic fluids contain from about 30 to about 95 weight percent, based on the total weight of the fluid, of n-butyl diisobutyl phosphate or di-n-butyl isobutyl phosphate or a mixture thereof; from 0 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: GrantFiled: May 1, 2001Date of Patent: November 25, 2003Assignee: ExxonMobil Research and Engineering CompanyInventors: Shlomo Antika, Marc-Andre Poirier
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Patent number: 6649080Abstract: 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: GrantFiled: September 28, 2001Date of Patent: November 18, 2003Assignees: ExxonMobil Research and Engineering Company, Chevron USA, Inc.Inventors: Mark E. Okazaki, Adrian D'Souza, Shlomo Antika
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Patent number: 6599866Abstract: The incorporation of a minor amount of a salt of pentafluorobenzene sulfonic acid to phosphate ester based functional fluids enhances the anti-erosion properties of the fluid.Type: GrantFiled: February 15, 2002Date of Patent: July 29, 2003Assignee: ExxonMobil Research and Engineering CompanyInventor: Marc-André Poirier
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Publication number: 20030060377Abstract: The present invention is a method for operating a hydraulic system at pressures of about 4000 psi or higher, preferably about 5000 psi or higher by using as the lubricant a phosphate ester hydraulic oil comprising a fire resistant phosphate esters base stock, a viscosity index improver, an anti erosion agent, an acid scavenger. The fluid used in the present method can also contain rust inhibitors and/or antioxidants.Type: ApplicationFiled: August 3, 2001Publication date: March 27, 2003Inventors: Shlomo Antica, Marc-Andre Poirier, Jean-Michel Pascual, Gerard Dallemagne
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Publication number: 20030047709Abstract: Functional fluids employing organic phosphate ester basestocks and mono-epoxide acid scavengers have improved EPR seal compatibility by using as the acid scavengers a mono-epoxide having the formula 1Type: ApplicationFiled: February 22, 2002Publication date: March 13, 2003Inventor: Marc-Andre Poirier
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Patent number: 6521142Abstract: The present invention relates to fire-resistant hydraulic fluids. More particularly, the invention relates to fire-resistant hydraulic fluid compositions comprising the combination of a trialkoxyalkyl-phosphate, a diluent selected from the group consisting of a natural triglyceride, a synthetic ester, and a polypropylene glycol, and a high molecular weight polymer.Type: GrantFiled: August 1, 2000Date of Patent: February 18, 2003Assignee: Houghton Technical Corp.Inventors: Rosauro V. Holgado, Richard Adams, Chan Talaty
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Patent number: 6508951Abstract: A glycol-based coolant composition which provides an excellent metal corrosion inhibition despite its low phosphorus content is disclosed. The glycol-based coolant composition contains: (A) 0.1-5.0% by weight of at least one ingredient selected from group A′ consisting of C6-C12 aliphatic dibasic acids and their alkali metal salts; (B) 0.1-10% by weight of at least one ingredient selected from group B′ consisting of alkyl benzoic acids and their alkali metal salts; (C) 0.001-0.1% by weight of at least one ingredient selected from group C′ consisting of strontium compounds and their alkali metal salts; and (D) 0.1-0.3% by weight of at least one ingredient selected from group D′ consisting of phosphoric acids and their alkali metal salts.Type: GrantFiled: September 1, 2000Date of Patent: January 21, 2003Assignees: CCI Kabushiki Kaisha, Honda Giken KogyoInventors: Yasuaki Mori, Michihiro Hori, Mitsuru Osawa, Takashi Nagashima
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Publication number: 20030001133Abstract: Disclosed are phosphate ester base fluids and aircraft hydraulic fluids containing mixed n-butyl/isobutyl phosphate ester components. The disclosed aircraft hydraulic fluids contain from about 30 to about 95 weight percent, based on the total weight of the fluid, of n-butyl diisobutyl phosphate or di-n-butyl isobutyl phosphate or a mixture thereof; from 0 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: May 1, 2001Publication date: January 2, 2003Inventors: Shlomo Antika, Marc-Andre Poirier
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Publication number: 20020179883Abstract: The incorporation of a minor amount of a salt of pentafluorobenzene sulfonic acid to phosphate ester based functional fluids enhances the anti-erosion properties of the fluid.Type: ApplicationFiled: February 15, 2002Publication date: December 5, 2002Inventor: Marc-Andre Poirier
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Patent number: 6482778Abstract: Transmission fluid compositions comprising a zinc detergent and at least one phosphorus-containing additive have enhanced performance capabilities. The use of the zinc detergent and the phosphorus-containing additive provide transmission fluids that exhibit high steel-on-steel coefficients of friction, particularly useful in continuously variable transmissions (CVT).Type: GrantFiled: August 11, 1999Date of Patent: November 19, 2002Assignee: Ethyl CorporationInventors: Samuel H. Tersigni, Sanjay Srinivasan, David L. Strait
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Publication number: 20020151444Abstract: There are disclosed compounds of formula I 1Type: ApplicationFiled: March 28, 2002Publication date: October 17, 2002Inventors: Horst Zinke, Rolf Schumacher
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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: 6391225Abstract: A functional fluid that is particularly useful as an aircraft hydraulic fluid is provided. The fluid contains a major amount of an organo/phosphate ester base stock; based on the total weight of the fluid of from about 0.5 to 10 wt % of certain alkoxylated polyether amines and from about 4 to about 20 wt % of auxiliary additives selected from the group consisting essentially of antioxidants, VI improvers, rust inhibitors, erosion inhibitors and defoamers.Type: GrantFiled: February 25, 2000Date of Patent: May 21, 2002Assignee: ExxonMobil Research and Engineering CompanyInventor: Marc-André Poirier
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Patent number: 6380139Abstract: There are disclosed compounds of formula I wherein R1 and R2 are each independently of the other C3-C18alkyl, C5-C12cycloalkyl, C5-C6cycloalkylmethyl, C9-C10bicycloalkylmethyl, C9-C10tricycloalkylmethyl, phenyl, C7-C24alkylphenyl or, taken together, are R3 is C2-C18alkylene which is interrupted by —O—, —S—, or —NR4—, or is a group of formula R4 is hydrogen, C1-C18alkyl, phenyl-C1-C4alkyl, phenyl or C1-C6alkyl-substituted phenyl, R5 is hydrogen or methyl. These compounds are particularly suitable for use as additives for lubricant compositions, hydraulic fluids and machining fluids.Type: GrantFiled: May 26, 1995Date of Patent: April 30, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Horst Zinke, Rolf Schumacher
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Patent number: 6348437Abstract: Silicone organic blends for use as lubricating oils, hydraulic fluids, dielectric fluids, coolants, and in compressor or vacuum pump applications, have improved viscosity stability when the polydispersity of the silicone fluids used in these blends, i.e., their molecular weight distribution (Mw/Mn), exceeds 1.5. The viscosity rise of the silicone organic blend is less than one centistoke (mm2/s) when aged 14 days in an oven at 100° C., compared to viscosity rises of about 1.3 to over 3.5 centistokes (mm2/s) for commercial silicone organic blends using silicone fluids with polydispersity less than 1.5.Type: GrantFiled: May 1, 1996Date of Patent: February 19, 2002Assignee: Dow Corning CorporationInventors: Ragnar Richard Avery, Jeffrey Scott Baker, Gerald Anthony Beeler, Michael Henry Brown, Kevin James Okeson
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Patent number: 6319423Abstract: 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: GrantFiled: October 22, 1999Date of Patent: November 20, 2001Assignees: ExxonMobil Research & Engineering Co., Chevron U.S.A.Inventors: Mark E. Okazaki, Adrian D'Souza, Shlomo Antika
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Patent number: 6254799Abstract: Disclosed are phosphate ester base fluids and aircraft hydraulic fluids containing mixed n-butyl/isobutyl phosphate ester components. The disclosed aircraft hydraulic fluids contain from about 30 to about 95 weight percent, based on the total weight of the fluid, of n-butyl diisobutyl phosphate or di-n-butyl isobutyl phosphate or a mixture thereof; from 0 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: GrantFiled: November 4, 1999Date of Patent: July 3, 2001Assignee: ExxonMobil Research and Engineering CompanyInventors: Shlomo Antika, Marc-André Poirer
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Patent number: 6206764Abstract: The present invention provides a method for machining hard materials using the machining fluids containing long chain alcohol in which the machining fluid is applied to a machining tool and then lubricates the machining of the workpiece by the machining tool and protects the machining tool during machining. The method is particularly useful when used with machining tools having a Mohs hardness of at least 9 and is most particularly useful when used with diamond machining tools.Type: GrantFiled: April 16, 1998Date of Patent: March 27, 2001Assignee: The United States of America as represented by the Secretary of CommerceInventors: Stephen Hsu, Tsi-Neng Ying, Jia-Ming Gu, Yu-Shu Wang, Richard S. Gates
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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