With Organic Non-heterocyclic Nitrogen Compound Patents (Class 508/254)
  • Lubricating oils
    Patent number: 11104860
    Abstract: A lubricating composition comprises an amide and at least one additive. The amide is the reaction product of a secondary, branched amine and a carboxylic acid. The carboxylic acid may be a monocarboxylic acid or a dicarboxylic acid, including dimer acid. The amide is hydrolytically stable, and may be used to increase the hydrolytic stability of the lubricant composition. Alternatively, the amide may be used to increase the additive solubility or detergency of the lubricant composition.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: August 31, 2021
    Assignee: Croda, Inc.
    Inventors: Xin Chen, Alexei Nikolaevich Kurchan, Zhongqi Shen
  • Compounds and mixtures with antidegradant and antifatigue efficacy and compositions including such compounds
    Patent number: 10167252
    Abstract: Antidegradant compounds are disclosed, and methods of making them, that are represented by the formula I: wherein each X is independently selected from the group consisting of ethyl, methyl, or hydrogen. Also disclosed are diimine intermediates corresponding to formula III: wherein each X is independently selected from the group consisting of ethyl, methyl, or hydrogen. These intermediates themselves exhibit antidegradant activity.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: January 1, 2019
    Assignee: Eastman Chemical Company
    Inventors: Matthew Allen Boone, Donald L. Fields, Jr., Frederick Ignatz-Hoover
  • Methods of making compounds having antidegradant and antifatigue efficacy
    Patent number: 10160718
    Abstract: A method of making antidegradant compounds is disclosed, in which a p-phenylenediamine is reacted with an alpha-hydroxy carbonyl compound to thereby obtain an enediamine, which is reduced to thereby obtain a mixture comprising the antidegradant compound.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: December 25, 2018
    Assignee: Eastman Chemical Company
    Inventors: Matthew Allen Boone, Donald L. Fields, Jr., Frederick Ignatz-Hoover
  • Methods of making compounds and mixtures having antidegradant and antifatigue efficacy
    Patent number: 10160845
    Abstract: Methods of making antidegradant compounds are disclosed in which a p-phenylenediamine is reacted with a diol to obtain mixtures comprising the antidegradant compounds.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: December 25, 2018
    Assignee: Eastman Chemical Company
    Inventors: Matthew Allen Boone, Donald L. Fields, Jr., Frederick Ignatz-Hoover
  • Composition and method for preventing or reducing engine knock and pre-ignition in high compression spark ignition engines
    Patent number: 10119090
    Abstract: A method for preventing or reducing engine knock or pre-ignition in a high compression spark ignition engine lubricated with a lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition that contains (i) a lubricating oil base stock comprising at least one ester including at least one group selected from the group consisting of Formula (1), Formula (2), and Formula (3): The lubricating oils of this disclosure are useful as passenger vehicle engine oil (PVEO) products.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: November 6, 2018
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Jason Z. Gao, Eugine Choi, Matthew W. Boland, Luca Salvi
  • POLYALKYLENE GLYCOL LUBRICANT COMPOSITION
    Publication number: 20130102507
    Abstract: A lubricant composition useful for automotive engines, comprising: (A) at least one polyalkylene glycol suitable for use as a lubricant in an automotive engine, (B) an additive package which comprises an acid scavenger, wherein the acid scavenger is an aspartic acid ester, aspartic acid amide, a Group V aspartic acid salt, or a combination thereof.
    Type: Application
    Filed: December 14, 2012
    Publication date: April 25, 2013
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventor: DOW GLOBAL TECHNOLOGIES LLC
  • Dithiocarbamates containing alkylthio and hydroxy substituents
    Patent number: 6852680
    Abstract: This invention relates to a low cost, wear inhibitor containing novel dithiocarbamates with alkylthio and hydroxy substituents that can be used to formulate low phosphorus lubricants. In addition to wear inhibition, the dithiocarbamate compositions of the invention provide substantial oxidation protection to lubricating oils and are not detrimental to fuel economy.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: February 8, 2005
    Assignee: Ethyl Corporation
    Inventor: Vincent James Gatto
  • Lubricant containing a synergistic combination of rust inhibitors, antiwear agents, and a phenothiazine antioxidant
    Publication number: 20040192563
    Abstract: The present invention describes an improved lubricant composition comprising a particularly effective combination of components comprising ashless antiwear and rust inhibitor additives with an antioxidant liquid mixture formed by reacting an olefin with a mixture of diphenylamines and phenothiozines.
    Type: Application
    Filed: March 17, 2004
    Publication date: September 30, 2004
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Walter D. Vann, Liehpao Oscar Farng, Angela S. Galiano-Roth, Marcia G. Rogers, Paul Dubs, Miles J. Hutchings
  • Antioxidant combination for oxidation and deposit control in lubricants containing molybdenum and alkylated phenothiazine
    Patent number: 6797677
    Abstract: The invention relates to a lubricating oil composition having improved antioxidant properties, and which contains a molybdenum compound and an alkylated phenothiazine. Further, it may also include a secondary diarylamine, preferably an alkylated diphenylamine. This combination of additives provides improved oxidation control and friction modifier performance to the lubricating oil. The composition is particularly suited for use as a crankcase lubricant, or a transmission lubricant, including low levels and zero levels of phosphorus.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: September 28, 2004
    Assignee: Afton Chemical Corporation
    Inventors: Carl K. Esche, Jr., Vincent J. Gatto
  • Antioxidant combination for oxidation and deposit control in lubricants containing molybdenum and alkylated phenothiazine
    Publication number: 20030224950
    Abstract: The invention relates to a lubricating oil composition having improved antioxidant properties, and which contains a molybdenum compound and an alkylated phenothiazine. Further, it may also include a secondary diarylamine, preferably an alkylated diphenylamine. This combination of additives provides improved oxidation control and friction modifier performance to the lubricating oil. The composition is particularly suited for use as a crankcase lubricant, or a transmission lubricant, including low levels and zero levels of phosphorus.
    Type: Application
    Filed: May 30, 2002
    Publication date: December 4, 2003
    Inventors: Carl K. Esche, Vincent J. Gatto
  • Effective antioxidant combination for oxidation and deposit control in crankcase lubricants
    Patent number: 6599865
    Abstract: It has unexpectedly been found that the combination of (1) an alkylated diphenylamine, (2) a sulfurized olefin/fatty oil and/or an ashless dialkyldithiocarbamate, and (3) an alkylated phenothiazine, is highly effective at controlling crankcase lubricant oxidation and deposit formation. The present invention includes lubricating compositions, lubricating additives, and methods for improving the antioxidancy and/or deposit formation properties of a lubricating composition.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: July 29, 2003
    Assignee: Ethyl Corporation
    Inventors: Carl K. Esche, Jr., Vincent J. Gatto, William Y. Lam
  • Dithiocarbamates containing alkylthio and hydroxy substituents
    Publication number: 20030139301
    Abstract: This invention relates to a low cost, wear inhibitor containing novel dithiocarbamates with alkylthio and hydroxy substituents that can be used to formulate low phosphorus lubricants. In addition to wear inhibition, the dithiocarbamate compositions of the invention provide substantial oxidation protection to lubricating oils and are not detrimental to fuel economy.
    Type: Application
    Filed: October 26, 2001
    Publication date: July 24, 2003
    Inventor: Vincent James Gatto
  • Lubricating compositions
    Patent number: 5731273
    Abstract: Crankcase lubricant compositions for use in automobile or truck engines comprise a major proportion of a lubricating oil, and an antioxidant system comprising added copper present in oil-soluble form and at least one oil-soluble phenothiazine.
    Type: Grant
    Filed: November 13, 1996
    Date of Patent: March 24, 1998
    Assignee: Exxon Chemical Patents Inc.
    Inventor: Ian Peter Field
  • Combination diphenyl amine-phenothiazine additive for improved oxidation stability in polyol ester based greases (Law236)
    Patent number: 5560848
    Abstract: The oxidation stability of polyol ester based lithium soap thickened greases is improved by use of a synergistic antioxidant combination comprising a mixture of (alkylated) diphenyl amine and phenothiazine.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: October 1, 1996
    Assignee: Exxon Research and Engineering Company
    Inventor: Jeenok T. Kim