An Additional Reactant Is A Phenol, A Thiophenol, A Carboxylic Acid, Or Salt Thereof Patents (Class 508/242)
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Patent number: 8598099Abstract: The present invention relates to a lubricating composition containing a corrosion inhibitor compound and a mixture of two or more dispersants, wherein 0 mole % to less than 50 mole % of the second dispersant molecules contain a carbocyclic ring. The invention further provides a method for lubricating a mechanical device using the lubricating composition.Type: GrantFiled: February 6, 2012Date of Patent: December 3, 2013Assignee: The Lubrizol CorporationInventors: Craig D. Tipton, James L. Sumiejski, William D. Abraham
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Patent number: 8536103Abstract: A liquid extreme pressure agent for use in lubricating compositions where the lubricating compositions comprise an oil of lubricating viscosity and the reaction product of: (a) a thiazole; (b) a composition comprising a carboxylic acid, a phosphorus containing acid or salt, or combinations thereof; and (c) an amine containing one or more branched hydrocarbyl groups. The invention also provides an additive composition comprising the reaction product described above and a process for making lubricating compositions, including greases, from the reaction product.Type: GrantFiled: February 25, 2009Date of Patent: September 17, 2013Inventors: Richard A. Denis, Matthew R. Sivik, William C. Ward, Jr.
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Patent number: 8497232Abstract: A bis-type alkenyl-substituted succinimide which is prepared by reaction of succinic anhydride substituted with 2-alkenyl group having a branch structure in ?-position with alkylenepolyamine and its derivatives derived from the bis-type alkenyl-substituted succinimide by post-treatment are of value as friction modifiers, particularly for incorporation into lubricating oils for automatic transmissions.Type: GrantFiled: July 29, 2010Date of Patent: July 30, 2013Assignee: Chevron Japan LimitedInventors: Kedar Shanker Shrestha, Michio Shiga, Masami Fuchi, Takahiro Nakagawa
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Patent number: 8048831Abstract: A novel crankcase dispersant reaction product having fused therein an antioxidant moiety whereby the dispersant reaction product can function as an antioxidant while retaining at least two structural domains, one being a polar domain for association with sludge and a hydrocarbyl domain for oil solubility, so that the dispersant can function as a chemical agent to suspend sludge and prevent agglomeration of sludge precursors and soot so the latter can be readily removed from the system, such as by filtering, instead of being deleteriously deposited on internal engine components, as well as lubricant compositions incorporating such novel dispersant and, for instance, engines lubricated with such lubricant compositions.Type: GrantFiled: August 15, 2008Date of Patent: November 1, 2011Assignee: Afton Chemical CorporationInventor: John T. Loper
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Patent number: 7951758Abstract: The hydrolytic stability of magnesium overbased products is significantly improved by the addition or inclusion of a mixture or reaction product of an alkylphenol resin with a mixture of an alkenyl succinic anhydride and the acid thereof, and an alkyl amine. These magnesium overbased products are useful additives to fuel oils to improve their corrosion-causing tendencies. In one non-limiting embodiment, the alkylphenol resin is nonylphenol resin and the succinic anhydride is a partially hydrolyzed succinic anhydride having from 14 to 26 carbon atoms, along with the acid thereof. The mixtures and reaction products also serve as asphaltene inhibitors in the fuel oils.Type: GrantFiled: June 17, 2008Date of Patent: May 31, 2011Assignee: Baker Hughes IncorporatedInventors: Corina L. Sandu, Lawrence N. Kremer, Christine Ann Blundell, Lee Michael Howard, Joseph L. Stark
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Patent number: 7645726Abstract: A novel crankcase dispersant reaction product having fused therein an antioxidant moiety whereby the dispersant reaction product can function as an antioxidant while retaining at least two structural domains, one being a polar domain for association with sludge and a hydrocarbyl domain for oil solubility, so that the dispersant can function as a chemical agent to suspend sludge and prevent agglomeration of sludge precursors and soot so the latter can be readily removed from the system, such as by filtering, instead of being deleteriously deposited on internal engine components, as well as lubricant compositions incorporating such novel dispersant and, for instance, engines lubricated with such lubricant compositions.Type: GrantFiled: December 10, 2004Date of Patent: January 12, 2010Assignee: Afton Chemical CorporationInventor: John T. Loper
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Patent number: 7371713Abstract: A graft copolymer containing one or more ethylenically-unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing graftable monomers grafted to a polyolefin is disclosed. Novel monomers, methods of making such monomers, and graft copolymers comprising such monomers are based on reacting an acylating agent with an amine to form a reaction product. The reaction product may include more than one chemical compound formed from the combination of the acylating agent and the amine. The monomer is the graftable, ethylenically unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing compound(s) of the reaction product. The monomer may, but need not, be recovered from the product mixture. The preferred monomer is the reaction product of maleic anhydride and 4-aminodiphenylamine. Also described is a method of making a dispersant viscosity index improver. The monomer of the present invention may be grafted to a polyolefin in solutions or melts.Type: GrantFiled: May 23, 2003Date of Patent: May 13, 2008Assignee: Castrol LimitedInventors: Irwin L. Goldblatt, Shean-Jer Chen, Manish R. Patel, Stephen T. McKenna
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Patent number: 7147824Abstract: A method for suppressing the growth of mycobacteria associated with hypersensitivity pneumonitis, in particular Mycobacterium immunogenum, in metalworking fluids is described. The method uses antimicrobial or biocidal compositions which include a metal complex comprising disodium monocopper (II) citrate and an isothiazolone mixture preferably comprising 5-chloro-2-methyl-4-isothiazolin-3-one 2-methyl-4-isothiazolin-3-one. Also described are methods for detecting and identifying the mycobacteria.Type: GrantFiled: October 3, 2005Date of Patent: December 12, 2006Inventor: Harold W. Rossmoore
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Patent number: 6962896Abstract: Antioxidant additives for lubricating oils are prepared by reacting an acidic molybdenum compound or salt thereof and a basic nitrogen compound where the temperature of the process does not exceed 120° C., resulting in a product color that is light in intensity.Type: GrantFiled: May 31, 2002Date of Patent: November 8, 2005Assignee: Chevron Oronite Company LLCInventors: William R. Ruhe, Jr., Anatoli Onopchenko
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Patent number: 6951618Abstract: A method for suppressing the growth of mycobacteria associated with hypersensitivity pneumonitis, in particular Mycobacterium immunogenum, in metalworking fluids is described. The method uses antimicrobial or biocidal compositions which include a metal complex comprising disodium monocopper (II) citrate and an isothiazolone mixture preferably comprising 5-chloro-2-methyl-4-isothiazolin-3-one 2-methyl-4-isothiazolin-3-one. Also described are methods for detecting and identifying the mycobacteria.Type: GrantFiled: April 22, 2003Date of Patent: October 4, 2005Inventor: Harold W. Rossmoore
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Patent number: 6844299Abstract: This invention generally relates to new polyol ester derivatives of polyamines for use as dispersant additives compatible in synthetic ester-based turbo oils. The dispersant additives of the present invention consist of a hydrocarbon acid, a polyol, an amine carrier such as diacid or cyclic anhydride and a polyamine. The hydrocarbon acid makes up the non-polar hydrocarbon portion of the dispersant and the polyamine functions as the polar headgroup. The diacid or cyclic anhydride provides a means for attaching the polar polyamine to the dispersant structure through an amide linkage. Different dispersant structures are obtained by varying the hydrocarbon acid, the polyol and the nature of the polyamine.Type: GrantFiled: February 20, 2003Date of Patent: January 18, 2005Assignee: BP Corporation North America Inc.Inventors: Paul W. Bessonette, Patrick E. Godici, Kim E. Fyfe, Jeenok T. Kim
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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: 6800596Abstract: An improved dispersant is prepared by cross-linking a succinimide under Mannich reaction conditions with a polyphenolic compound. The amount of cross-linking, and the resulting size of the reaction product dispersant can be varied by varying the molecular equivalent ratios of succinimide and polyphenol. Lubricating oils containing the dispersant of the reaction product display superior performance.Type: GrantFiled: May 9, 2003Date of Patent: October 5, 2004Assignee: Afton Chemical Intangibles, LLCInventor: John T. Loper
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Publication number: 20040043909Abstract: A graft copolymer containing one or more ethylenically-unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing graftable monomers grafted to a polyolefin is disclosed. Novel monomers, methods of making such monomers, and graft copolymers comprising such monomers are based on reacting an acylating agent with an amine to form a reaction product. The reaction product may include more than one chemical compound formed from the combination of the acylating agent and the amine. The monomer is the graftable, ethylenically unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing compound(s) of the reaction product. The monomer may, but need not, be recovered from the product mixture. The preferred monomer is the reaction product of maleic anhydride and 4-aminodiphenylamine. Also described is a method of making a dispersant viscosity index improver. The monomer of the present invention may be grafted to a polyolefin in solutions or melts.Type: ApplicationFiled: May 23, 2003Publication date: March 4, 2004Inventors: Irwin L. Goldblatt, Shean-Jer Chen, Manish R. Patel, Stephen T. McKenna
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Publication number: 20040033910Abstract: A composition comprising: (a) from 0.Type: ApplicationFiled: August 7, 2003Publication date: February 19, 2004Inventor: Ravindranath Mukkamala
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Publication number: 20030228986Abstract: This invention generally relates to new polyol ester derivatives of polyamines for use as dispersant additives compatible in synthetic ester-based turbo oils. The dispersant additives of the present invention consist of a hydrocarbon acid, a polyol, an amine carrier such as diacid or cyclic anhydride and a polyamine. The hydrocarbon acid makes up the non-polar hydrocarbon portion of the dispersant and the polyamine functions as the polar headgroup. The diacid or cyclic anhydride provides a means for attaching the polar polyamine to the dispersant structure through an amide linkage. Different dispersant structures are obtained by varying the hydrocarbon acid, the polyol and the nature of the polyamine.Type: ApplicationFiled: February 20, 2003Publication date: December 11, 2003Inventors: Paul W. Bessonette, Patrick E. Godici, Kim E. Fyfe, Jeenok T. Kim
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Publication number: 20030224949Abstract: Antioxidant additives for lubricating oils are prepared by reacting an acidic molybdenum compound or salt thereof and a basic nitrogen compound where the temperature of the process does not exceed 120° C., resulting in a product color that is light in intensity.Type: ApplicationFiled: May 31, 2002Publication date: December 4, 2003Inventors: William R. Ruhe, Anatoli Onopchenko
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Publication number: 20030224948Abstract: An additive formulation comprising one or more ec-treated dispersants, borated dispersants, and a dispersed aromatic dicarboxylic acid corrosion inhibitor; a dispersant inhibitor package comprising one or more ec-treated dispersants, borated dispersants, and a dispersed aromatic dicarboxylic acid corrosion inhibitor; a lubricating oil comprising said dispersant inhibitor package; and a method for lubricating engines.Type: ApplicationFiled: February 14, 2003Publication date: December 4, 2003Inventors: Willem Van Dam, Michael T. Menasco, James J. Harrison, Mark R. Logan
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Publication number: 20030220206Abstract: Lubricant compositions comprises a lubricant base oil and one or more compounds resulting the modification of a succinimide represented by formula (1) or (2) 1Type: ApplicationFiled: April 10, 2003Publication date: November 27, 2003Applicant: Nippon Mitsubishi Oil CorporationInventors: Kenichi Komiya, Naozumi Arimoto, Noboru Ishida, Shinichi Shirahama, Eitaro Morita
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Publication number: 20020072478Abstract: Lubricant compositions comprises a lubricant base oil and one or more compounds resulting the modification of a succinimide represented by formula (1) or (2) 1Type: ApplicationFiled: September 5, 2001Publication date: June 13, 2002Applicant: Nippon Mitsubishi Oil CorporationInventors: Noboru Ishida, Shinichi Shirahama, Eitaro Morita, Kenichi Komiya, Naozumi Arimoto
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Patent number: 6284716Abstract: Copolymers I carrying functional groups and comprising a) 20-60 mol % of at least one monoethylenically unsaturated C4-C6-dicarboxylic acid or an anhydride thereof, b) 10-70 mol % of at least one oligomer of propene or of a branched 1-olefin of 4 to 10 carbon atoms, having an average molecular weight Mw of from 300 to 5000, and c) 1-50 mol % of at least one monoethylenically unsaturated compound which is copolymerizable with the monomers a) and b), a process for their preparation, oil-soluble reaction products obtainable therefrom by reaction with an amine and the use of said reaction products as additives for lubricants and fuels.Type: GrantFiled: March 12, 1996Date of Patent: September 4, 2001Assignee: BASF AktiengesellschaftInventors: Wolfgang Günther, Knut Oppenländer, Walter Denzinger, Heinrich Hartmann, Helmut Mach, Harald Schwahn, Hans Peter Rath
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Patent number: 6127325Abstract: A viscosity index improver for addition to lubricating oil or the like, which comprises a graft copolymer having structural units of an oil-soluble polymer (a) comprising an olefin polymer and structural units of a copolymer (b) of a monomer having a peroxide bond with a (meth)acrylate or the like or a copolymer (c) of a monomer having a peroxide bond with 2-hydroxyethyl(meth)acrylate or the like. The improver is excellent in the effect of improving the viscosity index, the thickening effect, the fluidity at low temperatures and the shear stability, and has no fear of causing phase separation in lubricating oil.Type: GrantFiled: October 5, 1998Date of Patent: October 3, 2000Assignee: NOF CorporationInventors: Shuji Suyama, Yoshiki Higuchi, Hidefumi Tochigi, Hiroshi Ohmura