Plural Nitrogens Bonded Directly To A Single Acyclic Hydrocarbon Chain Patents (Class 508/558)
-
Patent number: 10899986Abstract: Mannich base compositions include the reaction products of (1) an amine component including at least one multifunctional amine of structure (1): wherein each R is independently H or CH2CH2CH2NH2; R1 is H, CH2CH2CH2NH2, C1-C21 alkyl, or C2-C21 alkenyl; n is 2; and m is 1 or 2, with (2) an alkyl substituted hydroxyaromatic compound, and (3) and aldehyde. The Mannich base compositions are useful for fuel additives and other articles. Additive compositions, fuel additives, fuel compositions and methods for reducing deposit formations in a fuel system are also disclosed.Type: GrantFiled: August 25, 2017Date of Patent: January 26, 2021Assignee: Evonik Operations GmbHInventors: Buford Brian Smith, Gamini Ananda Vedage
-
Patent number: 9828566Abstract: The present invention generally relates, in certain aspects, to corrosion inhibiting compositions useful for metalworking fluids, as well as concentrates, additives and metalworking fluids containing such compositions. The invention furthermore relates, in some aspects, to the use of such compositions for providing to a metalworking fluid one or more of anticorrosion performance, antifoam performance, antiwear performance, load carrying capacity, long fluid life, biological stability, lubricity, hard water tolerance, formulation stability.Type: GrantFiled: July 6, 2015Date of Patent: November 28, 2017Assignee: AFTON CHECMICAL CORPORATIONInventors: Steven Anderson, Carl Williams
-
Patent number: 9593290Abstract: This invention relates to a lubricating oil composition and production thereof. The lubricating oil composition comprises a Mannich base represented by the following formula (III) (wherein A and R2 are as defined in the specification) and a lubricant base oil. The lubricating oil composition according to this invention exhibits excellent cleansing and dispersing performance and excellent anticorrosion performance.Type: GrantFiled: April 25, 2013Date of Patent: March 14, 2017Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING SINOPECInventors: Shihao Xin, Xin Xie, Zuoxin Huang, Qinghua Duan, Zhiqiang Wu, Lihua Wang
-
Patent number: 9365795Abstract: A lubricant composition comprising a major amount of a base oil having a kinematic viscosity between 2 and 8 cSt at 100° C. and a minor amount of an additive composition represented by formula IV: wherein x and y can be the same or different and (x+y) equals between 50 and 1,500 and m and n can be the same or different and Q is hydrogen or a monovalent organic group selected from the group consisting of C1-C8 alkyl, acetyl and isocyanato group of the formula —NCO.Type: GrantFiled: August 23, 2013Date of Patent: June 14, 2016Assignee: Afton Chemical CorporationInventors: Diane Gauthier, Joseph B. Carroll
-
Publication number: 20150126420Abstract: This invention relates to a lubricating oil composition and production thereof. The lubricating oil composition comprises a Mannich base represented by the following formula (III) (wherein A and R2 are as defined in the specification) and a lubricant base oil. The lubricating oil composition according to this invention exhibits excellent cleansing and dispersing performance and excellent anticorrosion performance.Type: ApplicationFiled: April 25, 2013Publication date: May 7, 2015Applicants: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING SINOPECInventors: Shihao Xin, Xin Xie, Zuoxin Huang, Qinghua Duan, Zhiqiang Wu, Lihua Wang
-
Patent number: 8513173Abstract: A lubricant composition for ball joints exhibits excellent low friction not only at ordinary temperatures but also from higher to lower temperatures, and will not leak out of ball joints at higher temperatures. A ball joint has the lubricant composition sealed therein. The lubricant composition contains a base oil including a synthetic hydrocarbon oil, a thickener, and a fatty acid salt of a compound represented by the formula (1): R1—NH—R2—NH2??(1) (R1: hydrocarbon group of C1 to C24; R2: alkylene group of C2 to C4).Type: GrantFiled: September 6, 2011Date of Patent: August 20, 2013Assignee: Nippon Oil CorporationInventors: Hirotsugu Kinoshita, Takashi Arai, Kiyomi Sakamoto
-
Patent number: 8476208Abstract: Disclosed are a water-soluble metal-processing agent and a coolant both of which have excellent microbial deterioration resistance and are less likely to go rotten, a method for preparing the agent or the coolant, and a metal processing method. The water-soluble metal-processing agent or the coolant comprises an N,N,N?,N?-tetraalkyldiamine compound. The metal processing method is characterized by processing a metal of interest by using the water-soluble metal-processing agent or the coolant.Type: GrantFiled: September 21, 2007Date of Patent: July 2, 2013Assignee: Yushiro Chemical Industry Co., Ltd.Inventors: Toru Kadokawa, Akio Saito
-
Patent number: 8465665Abstract: 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: GrantFiled: June 29, 2011Date of Patent: June 18, 2013Assignee: Idemitsu Kosan Co., Ltd.Inventor: Masato Kaneko
-
Publication number: 20130143780Abstract: The invention provides a lubricating composition containing a compound comprising the reaction product of a polyolefin, an ethylenically unsaturated aromatic acylating agent (or carboxylic reactant), and an amine, and an oil of lubricating viscosity. The invention further relates to the use of the lubricating composition in an internal combustion engine.Type: ApplicationFiled: May 17, 2011Publication date: June 6, 2013Applicant: THE LUBRIZOL CORPORATIONInventors: Matthew D. Gieselman, Joanne L. Jones, Renee A. Eveland, Patrick E. Mosier, William Ellyatt
-
Publication number: 20130102511Abstract: The present invention relates to an additive concentrate comprising a friction modifier, a corrosion inhibitor, and an oil of lubricating viscosity. The invention further provides a method for lubricating a transmission using the additive concentrate.Type: ApplicationFiled: December 11, 2012Publication date: April 25, 2013Applicant: THE LUBRIZOL CORPORATIONInventor: The Lubrizol Corporation
-
Publication number: 20120178656Abstract: The disclosed invention relates to a composition comprising a grafted polymer. The polymer backbone comprises an olefin block and a vinyl aromatic block. The polymer backbone is grafted with a pendant carbonyl containing group, the grafting being conducted in oil in the presence of an initiator. The carbonyl containing-group is optionally substituted to provide ester, imide and/or amide functionality. The grafted polymer is useful as a dispersant viscosity modifier in lubricating compositions such as engine oils.Type: ApplicationFiled: July 6, 2010Publication date: July 12, 2012Applicant: THE LUBRIZOL CORPORATIONInventors: Michael R. Sutton, William R.S. Barton, David Price, Mark C. Davies
-
Patent number: 8003584Abstract: There is disclosed a lubricating composition comprising a friction modifier and a base oil comprising less than about 3% by weight of tetracycloparaffins. Methods of making and using the composition are also disclosed.Type: GrantFiled: July 14, 2006Date of Patent: August 23, 2011Assignee: Afton Chemical CorporationInventors: Mark T. Devlin, Tze-chi Jao, John T. Loper, Helen T. Ryan, Carl K. Esche
-
Publication number: 20100205852Abstract: The present invention relates to the use of polyamines having at least one terminal secondary or tertiary amine function as a detergent additive for fuels and lubricants; to additive concentrates comprising such polyamines; to fuels and lubricants additized with these polyamines and to processes for their preparation.Type: ApplicationFiled: January 29, 2010Publication date: August 19, 2010Applicant: BASF SEInventors: Jörn KARL, Marco Bergemann, Mirjam Herrlich-Loos, Georg Schäper
-
Patent number: 7759294Abstract: Lubricant compositions having improved load carrying capacity comprising an extreme pressure compound comprising a sulfur-containing compound, a load carrying capacity enhancing combination comprising a hydrocarbylamine compound and an alkylphosphorothioate compound, a friction modifier compound, and a diluent or base oil as applicable. These lubricant compositions can be used as industrial oils well-suited for the demands of geared device applications, such as in wind turbine gear-boxes and automotive gears and axles.Type: GrantFiled: October 24, 2003Date of Patent: July 20, 2010Assignee: Afton Chemical CorporationInventors: Mark T. Devlin, Helen T. Ryan
-
Publication number: 20100093868Abstract: Disclosed are a water-soluble metal-processing agent and a coolant both of which have excellent microbial deterioration resistance and are less likely to go rotten, a method for preparing the agent or the coolant, and a metal processing method. The water-soluble metal-processing agent or the coolant comprises an N,N,N?,N?-tetraalkyldiamine compound. The metal processing method is characterized by processing a metal of interest by using the water-soluble metal-processing agent or the coolant.Type: ApplicationFiled: September 21, 2007Publication date: April 15, 2010Applicant: YUSHIRO CHEMICAL INDUSTRY CO., LTD.Inventors: Toru Kadokawa, Akio Saito
-
Publication number: 20090018040Abstract: A succinimide dispersant comprising the condensation product of a hydrocarbyl-substituted succinic anhydride or reactive equivalent thereof with an alkylene polyamine, wherein the alkylene polyamine is a condensed amine, exhibits improved viscometrics.Type: ApplicationFiled: February 3, 2006Publication date: January 15, 2009Applicant: THE LUBRIZOL CORPORATIONInventors: Renee A. Eveland, Matthew D. Gieselman, Douglas M. Barr, Gregory R. McCullough, John K. Pudelski
-
Publication number: 20080015127Abstract: There is disclosed a lubricating composition having a base oil, a friction modifier, and a dispersant, wherein the lubricating composition has less than about 325 ppm of boron. Methods of making and using the disclosed lubricating composition are also disclosed.Type: ApplicationFiled: July 14, 2006Publication date: January 17, 2008Inventors: John T. Loper, William Y. Lam, Mark T. Devlin
-
Publication number: 20080015128Abstract: There is disclosed a lubricating composition comprising a friction modifier and a base oil comprising less than about 3% by weight of tetracycloparaffins. Methods of making and using the composition are also disclosed.Type: ApplicationFiled: July 14, 2006Publication date: January 17, 2008Inventors: Mark T. Devlin, Tze-chi Jao, John T. Loper, Helen T. Ryan, Carl K. Esche
-
Publication number: 20080015125Abstract: A lubricant composition comprising a phosphorus-containing compound and a base oil comprising less than about 3% by weight of tetracycloparaffins is disclosed. Methods of making and using the lubricant composition are also disclosed.Type: ApplicationFiled: July 14, 2006Publication date: January 17, 2008Inventors: Mark T. Devlin, Tze-chi Jao, John T. Loper, Roger M. Sheets, Gregory H. Guinther
-
Publication number: 20040214733Abstract: A lubricating oil composition is provided containing a major amount of a lubricating oil base oil and a minor amount of an additive combination containingType: ApplicationFiled: June 1, 2004Publication date: October 28, 2004Inventor: Yoshiharu Baba
-
Publication number: 20040048753Abstract: Soot induced kinematic viscosity increase of lubricating oil compositions for diesel engines equipped with EGR systems can be ameliorated by selection of viscosity modifier, lubricating oil flow improvers, detergents and/or dispersants.Type: ApplicationFiled: September 10, 2002Publication date: March 11, 2004Inventors: Andrew J.D. Ritchie, Jai G. Bansal, Jacob Emert, Glen P. Fetterman, Antonio Gutierrez, Matthew D. Irving, Christopher J. Locke, Michael T. Minotti
-
Patent number: 6582485Abstract: Compounds of the general formula I Z—CH2—NY2−nHn (I) where n is 0 or 1, Z is a straight-chain or branched polyalkyl radical having a number average molecular weight of from about 150 to 40,000, and Y is a radical of the formula IIa or IIb where the radicals R, R1 and R2 independently of one another, are each hydrogen, an unsubstituted or substituted alkyl, alkenyl or alkynyl radical or an unsubstituted or substituted cycloalkyl, aryl or arylalkyl radical, which may carry one or more heteroatoms, and A is an alkyleneimine radical; or, if n is 0, one of the radicals Y may be a polyoxyalkylene radical, and processes for their preparation and fuel and lubricant compositions, and mixtures of additives, which contain the novel compounds.Type: GrantFiled: September 22, 2000Date of Patent: June 24, 2003Assignee: BASF AktiengesellschaftInventors: Manfred Julius, Roland Ettl, Wolfgang Günther, Thomas Greindl
-
Patent number: 6498129Abstract: A two-cycle oil is disclosed comprising a polyisobutylene amine, a dispersant, a polybutene polymer, solvent and lubricating oil which exhibits improved performance.Type: GrantFiled: September 8, 1998Date of Patent: December 24, 2002Assignee: Exxon Chemical Patents INC.Inventors: Emil J. Meny, Rolfe J. Hartley
-
Publication number: 20020151441Abstract: Automatic transmission fluids are described which contain at least 0.2 wt % of a metal-containing detergent, a dispersant, and a mixture of friction modifiers. The transmission fluids according to the present invention exhibit excellent initial anti shudder properties, excellent anti-shudder durability, and excellent friction durability.Type: ApplicationFiled: February 14, 2001Publication date: October 17, 2002Inventors: Sanjay Srinivasan, Ramnath N. Iyer, Nubar Ozbalik
-
Patent number: 6362136Abstract: This invention relates to compositions containing a sulfur containing antiwear/extreme pressure agent, basic nitrogen compound or a mixture thereof together with a hydrocarbyl mercaptan. The composition may additionally contain a phosphorus or boron antiwear or extreme pressure agent, a dispersant or an overbased metal salt. The invention also relates to lubricants, functional fluids, and concentrates containing the same. Seals, e.g. nitrile, polyacrylate, and fluoroelastomer, in contact with these composition have reduced deterioration. With the use of these compositions, lubricants, and functional fluids, the seals' useful life is extended.Type: GrantFiled: March 26, 1996Date of Patent: March 26, 2002Assignee: The Lubrizol CorporationInventors: Robert C. Richardson, Donald J. Marn
-
Publication number: 20010044389Abstract: Transmission lubricant compositions comprise a mineral oil as a base oil of which % CP and % CA defined in ASTM D 3238 are 70 or more and 3 or less, respectively, a viscosity index improver, and a friction modifier. The transmission lubricant compositions have excellent low temperature fluidity, shear stability, and durability of anti-shudder properties and thus can be used for extended periods of time.Type: ApplicationFiled: March 21, 2001Publication date: November 22, 2001Applicant: Nippon Mitsubishi Oil CorporationInventors: Kenichi Komiya, Akira Yaguchi, Osamu Kurosawa
-
Patent number: 6248702Abstract: The invention provides dispersants and dispersant viscosity index improvers which include polymers of conjugated dienes which have been hydrogenated, functionalized, optionally modified, and post treated. The dispersant substances include a copolymer of two different conjugated dienes and an aryl-substituted olefin. The polymers are selectively hydrogenated to produce polymers which have highly controlled amounts of unsaturation, permitting highly selective functionalization. Also provided are lubricant fluids, such as mineral and synthetic oils, which have been modified in their dispersancy and/or viscometric properties by means of the dispersant substances of the invention. Also provided are methods of modifying the dispersancy and/or viscometric properties of lubricating fluids such as mineral and synthetic lubricating oils. The dispersant substances may also include a carrier fluid to provide dispersant concentrates.Type: GrantFiled: November 30, 1998Date of Patent: June 19, 2001Assignee: Mobil Oil CorporationInventors: Thomas S. Coolbaugh, Frederick C. Loveless, John E. Marlin, II, Demetreos N. Matthews
-
Patent number: 6207627Abstract: Oxygen-containing compounds, particularly compounds wherein the oxygen is present in OH-groups, such as alcohols, sulfonic and carboxylic acids, or metal salts thereof, serve as lubricants for ceramic materials, particularly silicon nitride materials under high stress and high load conditions.Type: GrantFiled: January 19, 1994Date of Patent: March 27, 2001Assignee: The United States of America as represented by the Secretary of CommerceInventors: Richard S. Gates, Stephen M. Hsu
-
Patent number: 6162768Abstract: The invention provides dispersants and dispersant viscosity index improvers which include polymers of conjugated dienes which have been hydrogenated, functionalized, optionally modified and post treated. The dispersant substances include a copolymer of two different conjugated dienes. The polymers are selectively hydrogenated to produce polymers which have highly controlled amounts of unsaturation, permitting highly selective functionalization. The polymers may be functionalized by grafting of heteroatom-containing olefins. Also provided are lubricant fluids, such as mineral and synthetic oils, which have been modified in their dispersancy and/or viscometric properties by means of the dispersant substances of the invention. Also provided are methods of modifying the dispersancy and/or viscometric properties of lubricating fluids such as mineral and synthetic lubricating oils. The dispersant substances may also include a carrier fluid to provide dispersant concentrates.Type: GrantFiled: June 23, 1998Date of Patent: December 19, 2000Assignee: Mobil Oil CorporationInventors: Thomas S. Coolbaugh, Frederick C. Loveless, John E. Marlin, II, Demetreos N. Matthews
-
Patent number: 6133209Abstract: The present invention relates to at least simply unsaturated polyolefins with a number mean molecular weight in the range of 400 to 1,500 dalton and a dispersibility of M.sub.W /M.sub.N <1.2, obtained through catalytic dimerization from at least simply unsaturated olefin-oligomers, as well as to the method for their production. The present invention further relates to derivatives of these polyolefins which can be obtained by functionalizing at least a double link of the polyolefin. The invention also relates to the use of polyolefins and/or functionalization products as additives for fuels or lubricants.Type: GrantFiled: July 27, 1999Date of Patent: October 17, 2000Assignee: BASF AktiengesellschaftInventors: Hans Peter Rath, Irene Trotsch-Schaller, Dietmar Posselt, Bernhard Geissler, Johann-Peter Melder, Joachim Rosch
-
Patent number: 6103676Abstract: The invention provides dispersants and dispersant viscosity index improvers which include polymers of conjugated dienes which have been hydrogenated, functionalized, optionally modified and post treated. The dispersant substances include a copolymer of two different conjugated dienes. The polymers are selectively hydrogenated to produce polymers which have highly controlled amounts of unsaturation, permitting highly selective functionalization. The polymers may be functionalized by hydroformylation followed by reductive amination. Also provided are lubricant fluids, such as mineral and synthetic oils, which have been modified in their dispersancy and/or viscometric properties by means of the dispersant substances of the invention. Also provided are methods of modifying the dispersancy and/or viscometric properties of lubricating fluids such as mineral and synthetic lubricating oils. The dispersant substances may also include a carrier fluid to provide dispersant concentrates.Type: GrantFiled: June 23, 1998Date of Patent: August 15, 2000Assignee: Mobil Oil CorporationInventors: Thomas S. Coolbaugh, Frederick C. Loveless, John E. Marlin, II, Demetreos N. Matthews
-
Patent number: 6015863Abstract: Polymeric Mannich base condensates useful as fuel and lubricant additives. The polymeric Mannich base additives are the reaction products of poly (alpha-olefin/unsaturated acidic reactants) with Mannich base adducts of alkyl-substituted phenols condensed with aldehydes and amines.Type: GrantFiled: April 2, 1998Date of Patent: January 18, 2000Assignee: Ethyl CorporationInventors: Carl Anthony Mike, Gregory Paul Anderson, Carl Kurt Esche, Jr.
-
Patent number: 6005144Abstract: Reaction products of polyisobutenes having an average degree of polymerization P of from 10 to 100 and a content E of from 60 to 90% of double bonds which can react with maleic anhydride, E=100% corresponding to the theoretical value for the case where each molecule of the polyisobutene has such a reactive double bond, with oxides of nitrogen or mixtures of oxides of nitrogen and oxygen, are suitable as additives for fuels, in particular for gasoline engines, and for lubricants.Type: GrantFiled: November 5, 1998Date of Patent: December 21, 1999Assignee: BASF AktiengesellschaftInventors: Rudolf Kropp, Eckhard Hickmann, Klaus Ebel, Wolfgang Gunther, Hans Peter Rath, Harald Schwahn
-
Patent number: 5972856Abstract: Reaction products of polyisobutenes having an average degree of polymerization P of from 10 to 100 and a content E of from 60 to 90% of double bonds which can react with maleic anhydride, E=100% corresponding to the theoretical value for the case where each molecule of the polyisobutene has such a reactive double bond, with oxides of nitrogen or mixtures of oxides of nitrogen and oxygen, are suitable as additives for fuels, in particular for gasoline engines, and for lubricants.Type: GrantFiled: December 10, 1998Date of Patent: October 26, 1999Assignee: BASF AktiengesellschaftInventors: Rudolf Kropp, Eckhard Hickmann, Klaus Ebel, Wolfgang Gunther, Hans Peter Rath, Harald Schwahn
-
Patent number: 5965497Abstract: This invention relates to shear stable multigrade oils for crankcase lubrication of gasoline and diesel engines which oils are substantially free of viscosity modifier additives and comprise a detergent inhibitor package of lubricating oil additives, which package includes an ashless dispersant comprising an oil soluble polymeric hydrocarbon backbone having functional groups in which the hydrocarbon backbone is derived from an ethylene alpha-olefin (EAO) copolymer or alpha-olefin homo- or copolymer an M.sub.n of from 500 to 7000. Such multigrade crankcase oils without viscosity modifiers are more economical and may provide better diesel performance and seal comparability. The oils are also substantially shear stable and may be used in turbocharged engines and racing engines, with reduced mechanical breakdown of the oil.Type: GrantFiled: December 9, 1996Date of Patent: October 12, 1999Assignee: Exxon Chemical Patents, Inc.Inventors: David Robert Adams, Paul Brice
-
Patent number: 5962378Abstract: The present invention provides functional fluid compositions containing a major portion of oil of lubricating viscosity and a novel and synergistic combination of an acylated nitrogen-containing compound having an olefinic substituent averaging in carbon number from 20 to 60 and at least one ashless detergent/dispersant.Type: GrantFiled: July 21, 1998Date of Patent: October 5, 1999Assignee: Exxon Chemical Patents Inc.Inventors: George M. Tiffany, Rolfe J. Hartley, Antonio Gutierrez, Emil J. Meny
-
Patent number: 5919869Abstract: A polymer having a terminal hydroxyl, aldehyde or alkylamino substituent which may be used directly or in a derivative form as a dispersant for both fuel and lubricating oil compositions, wherein the polymer has a M.sub.n of about 300 to 10,000, and is derived from a polyolefin which is derived from a polyene (diene, e.g.), monomer of the formula H.sub.2 C.dbd.CHR.sup.4, wherein R.sup.4 is hydrogen or a straight or branched chain alkyl radical. Preferably, the polyolefin has at least about 30% terminal vinylidene unsaturation. Particularly desirable amine derivatives can be formed by either a single step aminomethylation process or a two step hydroformylation and reductive amination process.Type: GrantFiled: March 6, 1998Date of Patent: July 6, 1999Assignee: Exxon Chemical Patents, Inc.Inventors: Warren A. Thaler, Jacob I. Emert, Istvan T. Horvath, Richard H. Schlosberg, David A. Young, Stephen Zushma
-
Patent number: 5906970Abstract: A dendrimer-based cold flow additive material.Type: GrantFiled: March 20, 1997Date of Patent: May 25, 1999Assignee: Exxon Chemical Patents Inc.Inventor: Robert Dryden Tack
-
Patent number: 5851969Abstract: The present invention is directed to a grease containing base oil, a thickener and a hydrocarbyl substituted diamine additive exhibiting enhanced resistance to corrosion.Type: GrantFiled: March 14, 1997Date of Patent: December 22, 1998Assignee: Exxon Research and Engineering CompanyInventors: David Leslie Andrew, Brian Leslie Slack
-
Patent number: 5849675Abstract: A hydraulic system containing a piston-type pump having wear surfaces containing copper or a copper alloy, and, optionally, a vane-type pump having wear surfaces containing steel, uses an antiwear hydraulic fluid having an oil of lubricating viscosity and minor amounts of zinc dithiophosphate and a wear moderating agent. The wear moderating agent can be aliphatic polyol esters, boric acid derivatives of aliphatic polyol esters, aliphatic amines, aliphatic polyamines, aliphatic imidazolines, or mixtures of any combination thereof. The aliphatic groups of the wear moderating agent are substantially straight-chained, and the wear moderating agent contains at least ten carbon atoms.Type: GrantFiled: April 10, 1997Date of Patent: December 15, 1998Assignee: Chevron Chemical CompanyInventors: Stuart H. Brown, Todd Brookhart
-
Patent number: 5789356Abstract: The present invention provides functional fluid compositions containing a major portion of oil of lubricating viscosity and a novel and synergistic combination of an acylated nitrogen-containing compound having an olefinic substituent averaging in carbon number from 20 to 60 and at least one ashless detergent/dispersant.Type: GrantFiled: February 11, 1997Date of Patent: August 4, 1998Assignee: Exxon Chemical Patents IncInventor: George Mortimer Tiffany, III
-
Patent number: 5773393Abstract: The present invention includes a composition which comprises a major amount of an oil of lubricating viscosity and a minor amount effective to inhibit metal corrosion of a soluble additive mixture comprising(A) at least one amide compound of a mono- or polycarboxylic acid or reactive derivative thereof; and(B) at least about 0.1 mole of at least one amine per mole of amide, provided that when (A) is an amide of a dicarboxylic acid and the amine is an alkanol amine, the mixture contains more than 0.5 equivalent of the amine (B) per equivalent of amide (A).The compositions of the invention exhibit improved corrosion-inhibiting properties and the compositions are useful in a variety of lubrication applications. In particular the compositions are useful as hydraulic fluids.Type: GrantFiled: June 17, 1997Date of Patent: June 30, 1998Assignee: The Lubrizol CorporationInventor: Paul Ernest Adams
-
Patent number: 5614481Abstract: There is disclosed an improved process for making a lubricant grease wherein a basic oil is mixed with a thickening compound, a polar compound and an additive or additives to impart desired characteristics to the grease. The improvement includes selecting the basic oil from the group consisting of a polyolester, a silicone oil, a mineral oil, a vegetable oil, glycerine and propylene glycol. The improvement further includes first mixing the basic oil with a mixture of two polar agents in a vessel under constant stirring at a temperature and pressure sufficient to obtain a homogeneous mixture and then and only then reacting the homogenous mixture with the additive or additives and a thickening agent.Type: GrantFiled: August 16, 1993Date of Patent: March 25, 1997Inventor: Victor D. Lopez Rangel
-
Patent number: 5608029Abstract: A process for producing an oil soluble interpolymer polymer of 1,2-alkylenediamine such as N-ethyl ethylenediamine, aldehyde-provider such as formaldehyde, and ortho-unsubstituted hydroxyaromatics such as 4-polyalkylene phenol is disclosed. The decyclized Mannich Base monomer units provide a higher viscosity material which is suitably substituted with a long chain hydrocarbyl para substituent such as polyisobutylene or ethylene/alpha-olefin polymer. Various ortho-substituted hydroxyaromatics such as o-cresol may be used to control the degree of polymerization. The polymers are useful as dispersants or other lubricant additives.Type: GrantFiled: March 10, 1995Date of Patent: March 4, 1997Assignee: Exxon Chemical Patents Inc.Inventors: Warren A. Thaler, Stephen Zushma, Antonio Gutierrez
-
Patent number: 5558805Abstract: Crankcase lubricant compositions for use in automobile or truck engines comprise a major amount of a lubricating oil, added copper present in oil-soluble form and an oil-soluble diamine sulphide. The specified additives provide a highly effective antioxidant system, which may be used, for example, in lubricating oils which are substantially free of phosphorus.Type: GrantFiled: March 24, 1995Date of Patent: September 24, 1996Assignee: Exxon Chemical Patents IncInventors: Terence Colclough, Morton Beltzer, Jacob J. Habeeb