Patents by Inventor John Loper

John Loper has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11091613
    Abstract: A copolymer including ethylene units and units of one or more C3-10 alpha-olefins. The copolymer has a number average molecular weight of less than 5,000 g/mol, as measured by GPC. The ethylene content of the copolymer is less than 80 mol %. At least 70% of molecules of the copolymer have an unsaturated group, and at least 70% of said unsaturated groups are located in a terminal vinylidene group or a tri-substituted isomer of a terminal vinylidene group. The copolymer has a crossover temperature of ?20° C. or lower and/or a certain ethylene run length. Also disclosed are a method for making the copolymer and polyolefins plasticized with 1-40 wt % of the copolymer.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: August 17, 2021
    Assignee: AFTON CHEMICAL CORPORATION
    Inventors: Nathaniel Cain, John Loper, Lawrence Cunningham, Joseph W. Roos
  • Patent number: 11046908
    Abstract: The present disclosure relates to oxazoline modified lubricant additives that have dispersant properties and lubricating oil compositions including such dispersant lubricant additives. The disclosure also relates to the use of lubricant compositions comprising the additives of the disclosure for improving the soot or sludge handling characteristics of an engine lubricant composition while providing robust and consistent frictional performance at the same time.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: June 29, 2021
    Assignee: Afton Chemical Corporation
    Inventors: Arturo Carranza, Sheng Jiang, John Loper
  • Publication number: 20210171678
    Abstract: A copolymer including ethylene units and units of one or more C3-10 alpha-olefins. The copolymer has a number average molecular weight of less than 5,000 g/mol, as measured by GPC. The ethylene unit content of the copolymer is less than 80 mol %. 70 mol % or greater of the copolymer has a carbon-carbon double bond in a terminal monomer unit, and at least 70 mol % of the terminal unsaturation is vinylidene, one or more tri-substituted isomers of the vinylidene or any combination thereof. The copolymer has a crossover temperature of ?20° C. or lower and/or a certain average ethylene run length. Also disclosed are a method for making the copolymer and polyolefins plasticized with 1-40 wt. % of the copolymer. The copolymers may low metal (ash) and/or fluorine contents.
    Type: Application
    Filed: June 12, 2018
    Publication date: June 10, 2021
    Applicant: AFTON CHEMICAL CORPORATION
    Inventors: Nathaniel Cain, John Loper, Lawrence Cunningham, Joseph W. Roos
  • Patent number: 11008527
    Abstract: Engine oil \s and methods for use in soot-producing engines. The engine oil contains a major amount of a base oil and a dispersant reaction product of A) a hydrocarbyl-dicarboxylic acid or anhydride, and B) at least one polyamine, that is post-treated with C) an aromatic carboxylic acid, an aromatic polycarboxylic acid, or an aromatic anhydride, wherein all carboxylic acid or anhydride groups of C) are attached directly to an aromatic ring. A molar ratio of carboxyl groups from components A) and C) to nitrogen atoms from component B) of from 0.9 to 1.3 is used to make the dispersant which also has a molar ratio of component C) to component B) of at least 0.4 and when component B) has an average of 4-6 nitrogen atoms per molecule, a molar ratio of A) to B) is from 1.0 to 1.6.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: May 18, 2021
    Assignee: Afton Chemical Corporation
    Inventor: John Loper
  • Publication number: 20210070900
    Abstract: Ethylene-C3-C10 alpha olefin copolymers, dispersants and lubricating oils/fuel compositions incorporating dispersants, and related methods are generally described herein. The copolymer may comprise ethylene-derived units and C3-C10 alpha-olefin-derived units. The C3-C10 alpha-olefin-derived units may have a carbon number from three to ten. For example, the C3-C10 alpha-olefin-derived units may be propylene-derived units. The dispersants may be made from copolymers having low metal and/or fluorine contents.
    Type: Application
    Filed: June 12, 2018
    Publication date: March 11, 2021
    Applicant: AFTON CHEMICAL CORPORATION
    Inventors: Nathaniel Cain, John Loper, Lawrence Cunningham, Joseph W. Roos
  • Publication number: 20200231892
    Abstract: Engine oil \s and methods for use in soot-producing engines. The engine oil contains a major amount of a base oil and a dispersant reaction product of A) a hydrocarbyl-dicarboxylic acid or anhydride, and B) at least one polyamine, that is post-treated with C) an aromatic carboxylic acid, an aromatic polycarboxylic acid, or an aromatic anhydride, wherein all carboxylic acid or anhydride groups of C) are attached directly to an aromatic ring. A molar ratio of carboxyl groups from components A) and C) to nitrogen atoms from component B) of from 0.9 to 1.3 is used to make the dispersant which also has a molar ratio of component C) to component B) of at least 0.4 and when component B) has an average of 4-6 nitrogen atoms per molecule, a molar ratio of A) to B) is from 1.0 to 1.6.
    Type: Application
    Filed: January 18, 2019
    Publication date: July 23, 2020
    Applicant: Afton Chemical Corporation
    Inventor: John Loper
  • Publication number: 20200224117
    Abstract: The present disclosure relates to oxazoline modified lubricant additives that have dispersant properties and lubricating oil compositions including such dispersant lubricant additives. The disclosure also relates to the use of lubricant compositions comprising the additives of the disclosure for improving the soot or sludge handling characteristics of an engine lubricant composition while providing robust and consistent frictional performance at the same time.
    Type: Application
    Filed: January 11, 2019
    Publication date: July 16, 2020
    Inventors: Arturo Carranza, Sheng Jiang, John Loper
  • Publication number: 20190177651
    Abstract: Lubricating oil compositions including olefin copolymer dispersants comprising olefin copolymers derived from ethylene and one or more C3-C10 alpha olefins in combination with various additives and related methods are generally described herein. The compositions may include one or more phosphorus-containing compound(s), detergents, friction modifiers, extreme pressure agents, and mixtures thereof.
    Type: Application
    Filed: June 12, 2018
    Publication date: June 13, 2019
    Inventors: John Loper, Nathaniel Cain, Mark Devlin
  • Publication number: 20190177632
    Abstract: A fuel composition including a fuel and a fuel additive including a fuel soluble detergent selected from succinimide compounds of the Formula (I), Mannich detergents of the formulae (IIa), and amine detergents of the formulae (IIIa) and (IIIb). The fuel soluble detergents are derived from a specific class of ethylene-alpha olefin copolymers having an Mn of less than 5,000 g/mol, an ethylene unit content of more than 40 mol % to less than 90 mol %; a terminal unsaturation of 70 mol % or greater; at least 70 mol % of the unsaturation is terminal vinylidene, one or more tri-substituted isomers of the terminal vinylidene or any combination thereof, an average ethylene run length of less than 2.6; and wherein nC2,Actual>nC2,Statistical. Methods employing the fuel compositions for operating diesel and gasoline engines to reduce injector valve deposits, valve sticking and injector nozzle fouling, and a method for stabilizing a diesel fuel composition.
    Type: Application
    Filed: June 12, 2018
    Publication date: June 13, 2019
    Applicant: AFTON CHEMICAL CORPORATION
    Inventors: Nathaniel Cain, Michel Nuckols, John Loper, Lawrence Cunningham, William Colucci
  • Publication number: 20190177518
    Abstract: A copolymer including ethylene units and units of one or more C3-10 alpha-olefins. The copolymer has a number average molecular weight of less than 5,000 g/mol, as measured by GPC. The copolymers have low metal (ash) and/or fluorine contents.The ethylene content of the copolymer is less than 80 mol %. 70 mol % or greater of the copolymer has a carbon-carbon double bond in a terminal monomer unit, and at least 70 mol % of the terminal monomer units that have a carbon-carbon double bond have a terminal group selected from a vinylidene group and a tri-substituted isomer of a vinylidene group. The copolymer has a crossover temperature of ?20° C. or lower and/or a certain ethylene run length. Also disclosed are a method for making the copolymer and polyolefins plasticized with 1-40 wt. % of the copolymer as well as methods of fanctionalizing the copolymer and products made with the functionalized coploymer.
    Type: Application
    Filed: February 24, 2018
    Publication date: June 13, 2019
    Applicant: Afton Chemical Corporation
    Inventors: Nathaniel Cain, John Loper
  • Publication number: 20190169334
    Abstract: A copolymer including ethylene units and units of one or more C3-10 alpha-olefins. The copolymer has a number average molecular weight of less than 5,000 g/mol, as measured by GPC. The ethylene content of the copolymer is less than 80 mol %. At least 70% of molecules of the copolymer have an unsaturated group, and at least 70% of said unsaturated groups are located in a terminal vinylidene group or a tri-substituted isomer of a terminal vinylidene group. The copolymer has a crossover temperature of ?20° C. or lower and/or a certain ethylene run length. Also disclosed are a method for making the copolymer and polyolefins plasticized with 1-40 wt % of the copolymer.
    Type: Application
    Filed: February 8, 2019
    Publication date: June 6, 2019
    Applicant: Afton Chemical Corporation
    Inventors: Nathaniel Cain, John Loper, Lawrence Cunningham, Joseph W. Roos
  • Patent number: 10221267
    Abstract: A copolymer including ethylene units and units of one or more C3-10 alpha-olefins. The copolymer has a number average molecular weight of less than 5,000 g/mol, as measured by GPC. The ethylene content of the copolymer is less than 80 mol %. At least 70% of molecules of the copolymer have an unsaturated group, and at least 70% of said unsaturated groups are located in a terminal vinylidene group or a tri-substituted isomer of a terminal vinylidene group. The copolymer has a crossover temperature of ?20° C. or lower and/or a certain ethylene run length. Also disclosed are a method for making the copolymer and polyolefins plasticized with 1-40 wt % of the copolymer.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: March 5, 2019
    Assignee: AFTON CHEMICAL CORPORATION
    Inventors: Nathaniel Cain, John Loper, Lawrence Cunningham, Joseph W. Roos
  • Publication number: 20180162972
    Abstract: A copolymer including ethylene units and units of one or more C3-10 alpha-olefins. The copolymer has a number average molecular weight of less than 5,000 g/mol, as measured by GPC. The ethylene content of the copolymer is less than 80 mol %. At least 70% of molecules of the copolymer have an unsaturated group, and at least 70% of said unsaturated groups are located in a terminal vinylidene group or a tri-substituted isomer of a terminal vinylidene group. The copolymer has a crossover temperature of ?20° C. or lower and/or a certain ethylene run length. Also disclosed are a method for making the copolymer and polyolefins plasticized with 1-40 wt % of the copolymer.
    Type: Application
    Filed: December 13, 2016
    Publication date: June 14, 2018
    Applicant: Afton Chemical Corporation
    Inventors: Nathaniel Cain, John Loper, Lawrence Cunningham, Joseph W. Roos
  • Publication number: 20080051520
    Abstract: A novel a multi-functional polymer viscosity modifier comprising an additive reaction product obtained by reacting a first monomer comprising an alkylacrylate with a second monomer comprising an olefinic carboxylic acylating agent under conditions effective for free radical polymerization of the first and second monomers to provide a base polymer comprising an acylated alkylacrylate copolymer, and wherein the base polymer optionally may be further reacted with an amine compound to provide a multi-functional polyalkylacrylate copolymer. The base polymer has good thickening efficiency. The multi-functional polyalkylacrylate copolymer dispersant viscosity modifier has good thickening efficiency. The base polymer and the multi-functional polyalkylacrylate copolymer viscosity modifier have good thickening efficiency, low temperature properties, dispersancy, and antioxidancy properties. They also have no precipitation or sedimentation, nor cause or encourage such formations in finished fluids incorporating them.
    Type: Application
    Filed: September 11, 2007
    Publication date: February 28, 2008
    Applicant: AFTON CHEMICAL CORPORATION
    Inventors: Sanjay Srinivasan, John Loper, Naresh Mathur, Akhilesh Duggal
  • Publication number: 20080026964
    Abstract: A novel a multi-functional polymer viscosity modifier comprising an additive reaction product obtained by reacting a first monomer comprising an alkylacrylate with a second monomer comprising an olefinic carboxylic acylating agent under conditions effective for free radical polymerization of the first and second monomers to provide a base polymer comprising an acylated alkylacrylate copolymer, and wherein the base polymer optionally may be further reacted with an amine compound to provide a multi-functional polyalkylacrylate copolymer. The base polymer has good thickening efficiency. The multi-functional polyalkylacrylate copolymer dispersant viscosity modifier has good thickening efficiency. The base polymer and the multi-functional polyalkylacrylate copolymer viscosity modifier have good thickening efficiency, low temperature properties, dispersancy, and antioxidancy properties. They also have no precipitation or sedimentation, nor cause or encourage such formations in finished fluids incorporating them.
    Type: Application
    Filed: September 11, 2007
    Publication date: January 31, 2008
    Applicant: AFTON CHEMICAL CORPORATION
    Inventors: Sanjay SRINIVASAN, John Loper, Naresh Mathur, Akhilesh Duggal
  • Publication number: 20070142249
    Abstract: There is disclosed herein an additive composition including a compound of formula (III): wherein R1, R2, R3, R4, R5, R6 , R7, R8, and R9are independently selected from the group consisting of hydrogen, cyano, and hydrocarbyl groups comprising from about 1 to about 30 carbon atoms.
    Type: Application
    Filed: March 9, 2006
    Publication date: June 21, 2007
    Inventors: David DeGonia, Chip Hewette, Roger Sheets, Ronald Phillips, John Loper
  • Publication number: 20070111908
    Abstract: A fully formulated lubricating oil, lubricated surface, and lubricant additive concentrates for lubricants providing reduced sludge formation. The fully formulated lubricating oil composition has therein at least one succinimide dispersant derived from a polyalkylene compound having from about 50 to about 85% vinylidene double bonds in the compound, a metal containing detergent, at least one wear reducing agent, at least one antioxidant, and a hydrocarbon soluble titanium compound as a friction modifier. The lubricating oil composition is also substantially free of molybdenum compounds.
    Type: Application
    Filed: December 15, 2006
    Publication date: May 17, 2007
    Inventors: William Lam, John Loper
  • Publication number: 20060168876
    Abstract: A fuel composition and methods for using it for controlling deposit formation in a spark-ignition internal combustion engine, such as a direct injection engine, comprising a spark-ignition fuel, a detergent, and a deposit inhibitor compound.
    Type: Application
    Filed: April 3, 2006
    Publication date: August 3, 2006
    Inventors: William Colucci, John Loper, Allen Aradi
  • Publication number: 20060128571
    Abstract: 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: Application
    Filed: December 10, 2004
    Publication date: June 15, 2006
    Inventor: John Loper
  • Publication number: 20060084584
    Abstract: The present disclosure relates to organic molybdenum complexes prepared by reacting a Mannich base with a source of molybdenum. The complexes may be useful in lubricating oil compositions as at least one of an antioxidant, a deposit control additive, and a friction modifier. The organic molybdenum complexes may show a reduced tendency to color finished oils.
    Type: Application
    Filed: October 20, 2004
    Publication date: April 20, 2006
    Inventors: Vincent Gatto, John Loper