Plural Nitrogens Bonded Directly To A Single Acyclic Hydrocarbon Chain Patents (Class 508/558)
  • Patent number: 10899986
    Abstract: 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: Grant
    Filed: August 25, 2017
    Date of Patent: January 26, 2021
    Assignee: Evonik Operations GmbH
    Inventors: Buford Brian Smith, Gamini Ananda Vedage
  • Patent number: 9828566
    Abstract: 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: Grant
    Filed: July 6, 2015
    Date of Patent: November 28, 2017
    Assignee: AFTON CHECMICAL CORPORATION
    Inventors: Steven Anderson, Carl Williams
  • Patent number: 9593290
    Abstract: 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: Grant
    Filed: April 25, 2013
    Date of Patent: March 14, 2017
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING SINOPEC
    Inventors: Shihao Xin, Xin Xie, Zuoxin Huang, Qinghua Duan, Zhiqiang Wu, Lihua Wang
  • Patent number: 9365795
    Abstract: 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: Grant
    Filed: August 23, 2013
    Date of Patent: June 14, 2016
    Assignee: Afton Chemical Corporation
    Inventors: Diane Gauthier, Joseph B. Carroll
  • Publication number: 20150126420
    Abstract: 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: Application
    Filed: April 25, 2013
    Publication date: May 7, 2015
    Applicants: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING SINOPEC
    Inventors: Shihao Xin, Xin Xie, Zuoxin Huang, Qinghua Duan, Zhiqiang Wu, Lihua Wang
  • Patent number: 8513173
    Abstract: 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: Grant
    Filed: September 6, 2011
    Date of Patent: August 20, 2013
    Assignee: Nippon Oil Corporation
    Inventors: Hirotsugu Kinoshita, Takashi Arai, Kiyomi Sakamoto
  • Patent number: 8476208
    Abstract: 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: Grant
    Filed: September 21, 2007
    Date of Patent: July 2, 2013
    Assignee: Yushiro Chemical Industry Co., Ltd.
    Inventors: Toru Kadokawa, Akio Saito
  • Patent number: 8465665
    Abstract: 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: Grant
    Filed: June 29, 2011
    Date of Patent: June 18, 2013
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventor: Masato Kaneko
  • Publication number: 20130143780
    Abstract: 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: Application
    Filed: May 17, 2011
    Publication date: June 6, 2013
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Matthew D. Gieselman, Joanne L. Jones, Renee A. Eveland, Patrick E. Mosier, William Ellyatt
  • Publication number: 20130102511
    Abstract: 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: Application
    Filed: December 11, 2012
    Publication date: April 25, 2013
    Applicant: THE LUBRIZOL CORPORATION
    Inventor: The Lubrizol Corporation
  • Publication number: 20120178656
    Abstract: 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: Application
    Filed: July 6, 2010
    Publication date: July 12, 2012
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Michael R. Sutton, William R.S. Barton, David Price, Mark C. Davies
  • Patent number: 8003584
    Abstract: 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: Grant
    Filed: July 14, 2006
    Date of Patent: August 23, 2011
    Assignee: Afton Chemical Corporation
    Inventors: Mark T. Devlin, Tze-chi Jao, John T. Loper, Helen T. Ryan, Carl K. Esche
  • Publication number: 20100205852
    Abstract: 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: Application
    Filed: January 29, 2010
    Publication date: August 19, 2010
    Applicant: BASF SE
    Inventors: Jörn KARL, Marco Bergemann, Mirjam Herrlich-Loos, Georg Schäper
  • Patent number: 7759294
    Abstract: Lubricant compositions having improved load carrying capacity comprising an extreme pressure compound comprising a sulfur-containing compound, a load carrying capacity enhancing combination comprising a hydrocarbylamine compound and an alkylphosphorothioate compound, a friction modifier compound, and a diluent or base oil as applicable. These lubricant compositions can be used as industrial oils well-suited for the demands of geared device applications, such as in wind turbine gear-boxes and automotive gears and axles.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: July 20, 2010
    Assignee: Afton Chemical Corporation
    Inventors: Mark T. Devlin, Helen T. Ryan
  • Publication number: 20100093868
    Abstract: 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: Application
    Filed: September 21, 2007
    Publication date: April 15, 2010
    Applicant: YUSHIRO CHEMICAL INDUSTRY CO., LTD.
    Inventors: Toru Kadokawa, Akio Saito
  • Publication number: 20090018040
    Abstract: 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: Application
    Filed: February 3, 2006
    Publication date: January 15, 2009
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Renee A. Eveland, Matthew D. Gieselman, Douglas M. Barr, Gregory R. McCullough, John K. Pudelski
  • Publication number: 20080015128
    Abstract: 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: Application
    Filed: July 14, 2006
    Publication date: January 17, 2008
    Inventors: Mark T. Devlin, Tze-chi Jao, John T. Loper, Helen T. Ryan, Carl K. Esche
  • Publication number: 20080015127
    Abstract: 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: Application
    Filed: July 14, 2006
    Publication date: January 17, 2008
    Inventors: John T. Loper, William Y. Lam, Mark T. Devlin
  • Publication number: 20080015125
    Abstract: 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: Application
    Filed: July 14, 2006
    Publication date: January 17, 2008
    Inventors: Mark T. Devlin, Tze-chi Jao, John T. Loper, Roger M. Sheets, Gregory H. Guinther
  • Publication number: 20040214733
    Abstract: A lubricating oil composition is provided containing a major amount of a lubricating oil base oil and a minor amount of an additive combination containing
    Type: Application
    Filed: June 1, 2004
    Publication date: October 28, 2004
    Inventor: Yoshiharu Baba
  • Publication number: 20040048753
    Abstract: 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: Application
    Filed: September 10, 2002
    Publication date: March 11, 2004
    Inventors: 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: 6582485
    Abstract: 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: Grant
    Filed: September 22, 2000
    Date of Patent: June 24, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Manfred Julius, Roland Ettl, Wolfgang Günther, Thomas Greindl
  • Patent number: 6498129
    Abstract: A two-cycle oil is disclosed comprising a polyisobutylene amine, a dispersant, a polybutene polymer, solvent and lubricating oil which exhibits improved performance.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: December 24, 2002
    Assignee: Exxon Chemical Patents INC.
    Inventors: Emil J. Meny, Rolfe J. Hartley
  • Publication number: 20020151441
    Abstract: 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: Application
    Filed: February 14, 2001
    Publication date: October 17, 2002
    Inventors: Sanjay Srinivasan, Ramnath N. Iyer, Nubar Ozbalik
  • Patent number: 6362136
    Abstract: 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: Grant
    Filed: March 26, 1996
    Date of Patent: March 26, 2002
    Assignee: The Lubrizol Corporation
    Inventors: Robert C. Richardson, Donald J. Marn
  • Publication number: 20010044389
    Abstract: 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: Application
    Filed: March 21, 2001
    Publication date: November 22, 2001
    Applicant: Nippon Mitsubishi Oil Corporation
    Inventors: Kenichi Komiya, Akira Yaguchi, Osamu Kurosawa
  • Patent number: 6248702
    Abstract: 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: Grant
    Filed: November 30, 1998
    Date of Patent: June 19, 2001
    Assignee: Mobil Oil Corporation
    Inventors: Thomas S. Coolbaugh, Frederick C. Loveless, John E. Marlin, II, Demetreos N. Matthews
  • Patent number: 6207627
    Abstract: 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: Grant
    Filed: January 19, 1994
    Date of Patent: March 27, 2001
    Assignee: The United States of America as represented by the Secretary of Commerce
    Inventors: Richard S. Gates, Stephen M. Hsu
  • Patent number: 6162768
    Abstract: 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: Grant
    Filed: June 23, 1998
    Date of Patent: December 19, 2000
    Assignee: Mobil Oil Corporation
    Inventors: Thomas S. Coolbaugh, Frederick C. Loveless, John E. Marlin, II, Demetreos N. Matthews
  • Patent number: 6133209
    Abstract: 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: Grant
    Filed: July 27, 1999
    Date of Patent: October 17, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans Peter Rath, Irene Trotsch-Schaller, Dietmar Posselt, Bernhard Geissler, Johann-Peter Melder, Joachim Rosch
  • Patent number: 6103676
    Abstract: 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: Grant
    Filed: June 23, 1998
    Date of Patent: August 15, 2000
    Assignee: Mobil Oil Corporation
    Inventors: Thomas S. Coolbaugh, Frederick C. Loveless, John E. Marlin, II, Demetreos N. Matthews
  • Patent number: 6015863
    Abstract: 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: Grant
    Filed: April 2, 1998
    Date of Patent: January 18, 2000
    Assignee: Ethyl Corporation
    Inventors: Carl Anthony Mike, Gregory Paul Anderson, Carl Kurt Esche, Jr.
  • Patent number: 6005144
    Abstract: 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: Grant
    Filed: November 5, 1998
    Date of Patent: December 21, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Rudolf Kropp, Eckhard Hickmann, Klaus Ebel, Wolfgang Gunther, Hans Peter Rath, Harald Schwahn
  • Patent number: 5972856
    Abstract: 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: Grant
    Filed: December 10, 1998
    Date of Patent: October 26, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Rudolf Kropp, Eckhard Hickmann, Klaus Ebel, Wolfgang Gunther, Hans Peter Rath, Harald Schwahn
  • Patent number: 5965497
    Abstract: 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: Grant
    Filed: December 9, 1996
    Date of Patent: October 12, 1999
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: David Robert Adams, Paul Brice
  • Patent number: 5962378
    Abstract: 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: Grant
    Filed: July 21, 1998
    Date of Patent: October 5, 1999
    Assignee: Exxon Chemical Patents Inc.
    Inventors: George M. Tiffany, Rolfe J. Hartley, Antonio Gutierrez, Emil J. Meny
  • Patent number: 5919869
    Abstract: 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: Grant
    Filed: March 6, 1998
    Date of Patent: July 6, 1999
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Warren A. Thaler, Jacob I. Emert, Istvan T. Horvath, Richard H. Schlosberg, David A. Young, Stephen Zushma
  • Patent number: 5906970
    Abstract: A dendrimer-based cold flow additive material.
    Type: Grant
    Filed: March 20, 1997
    Date of Patent: May 25, 1999
    Assignee: Exxon Chemical Patents Inc.
    Inventor: Robert Dryden Tack
  • Patent number: 5851969
    Abstract: 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: Grant
    Filed: March 14, 1997
    Date of Patent: December 22, 1998
    Assignee: Exxon Research and Engineering Company
    Inventors: David Leslie Andrew, Brian Leslie Slack
  • Patent number: 5849675
    Abstract: 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: Grant
    Filed: April 10, 1997
    Date of Patent: December 15, 1998
    Assignee: Chevron Chemical Company
    Inventors: Stuart H. Brown, Todd Brookhart
  • Patent number: 5789356
    Abstract: 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: Grant
    Filed: February 11, 1997
    Date of Patent: August 4, 1998
    Assignee: Exxon Chemical Patents Inc
    Inventor: George Mortimer Tiffany, III
  • Patent number: 5773393
    Abstract: 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: Grant
    Filed: June 17, 1997
    Date of Patent: June 30, 1998
    Assignee: The Lubrizol Corporation
    Inventor: Paul Ernest Adams
  • Patent number: 5614481
    Abstract: 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: Grant
    Filed: August 16, 1993
    Date of Patent: March 25, 1997
    Inventor: Victor D. Lopez Rangel
  • Patent number: 5608029
    Abstract: 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: Grant
    Filed: March 10, 1995
    Date of Patent: March 4, 1997
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Warren A. Thaler, Stephen Zushma, Antonio Gutierrez
  • Patent number: 5558805
    Abstract: 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: Grant
    Filed: March 24, 1995
    Date of Patent: September 24, 1996
    Assignee: Exxon Chemical Patents Inc
    Inventors: Terence Colclough, Morton Beltzer, Jacob J. Habeeb