Patents by Inventor Malcolm G. J. Macduff

Malcolm G. J. Macduff 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: 10450524
    Abstract: The present invention relates to compositions containing a detergent composition and an active metal containing compound, where the detergent composition includes a quaternary ammonium salt detergent and optionally an oxygen-containing detergent, and where the active metal containing compound is in the form of a colloidal dispersion, comprising an organic phase, particles of an iron compound in its amorphous form, and at least one amphiphilic agent. These compositions may be used in fuels and provide improved engine performance when such fuels are used, specifically by reducing fuel injector fouling in the engine and/or by improving the regeneration of the engine's particulate exhaust trap.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: October 22, 2019
    Assignees: RHODIA OPERATIONS, THE LUBRIZOL CORPORATION
    Inventors: Virginie Harle, Michael Lallemand, David Moreton, Malcolm G J. MacDuff, Magali Pudlarz
  • Patent number: 9914892
    Abstract: A composition contains an additive for assisting with regeneration of the PF in the form of an organic dispersion of iron particles in crystallized form and a detergent including a quaternary ammonium salt.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: March 13, 2018
    Assignees: RHODIA OPERATIONS, THE LUBRIZOL CORPORATION
    Inventors: Lauriane D'Alencon, Michael Lallemand, Virginie Harle, David J. Moreton, Malcolm G. J. MacDuff, Magali Pudlarz
  • Patent number: 9574148
    Abstract: A composition contains an additive for assisting with the regeneration of the PF in the form of an organic dispersion of iron particles and a detergent including a polyester quaternary ammonium salt.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: February 21, 2017
    Assignees: RHODIA OPERATIONS, THE LUBRIZOL CORPORATION
    Inventors: Lauriane D'Alencon, Michael Lallemand, Virginie Harle, David J. Moreton, Malcolm G. J. MacDuff, Magali Pudlarz, Hannah Greenfield, Dean Thetford, Joanne L. Jones
  • Publication number: 20150232775
    Abstract: The present invention relates to compositions containing a detergent composition and an active metal containing compound, where the detergent composition includes a quaternary ammonium salt detergent and optionally an oxygen-containing detergent, and where the active metal containing compound is in the form of a colloidal dispersion, comprising an organic phase, particles of an iron compound in its amorphous form, and at least one amphiphilic agent. These compositions may be used in fuels and provide improved engine performance when such fuels are used, specifically by reducing fuel injector fouling in the engine and/or by improving the regeneration of the engine's particulate exhaust trap.
    Type: Application
    Filed: April 30, 2015
    Publication date: August 20, 2015
    Inventors: Virginie Harle, Michael Lallemand, David Moreton, Malcolm G J. MACDUFF, Magali Pudlarz
  • Patent number: 9045709
    Abstract: Compositions that include a detergent composition and an active metal compound are described wherein the detergent composition includes a quaternary ammonium salt detergent and optionally an oxygen-containing detergent, and wherein the active metal compound is in the form of a colloidal dispersion, comprising an organic phase, particles of an iron compound in its amorphous form, and at least one amphiphilic agent. These compositions can be used in fuels to provide improved engine performance by, for example, reducing fuel injector fouling in the engine and/or by improving the regeneration of the engine's particulate exhaust trap.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: June 2, 2015
    Assignees: RHODIA OPERATIONS, THE LUBRIZOL CORPORATION
    Inventors: Virginie Harle, Michael Lallemand, David Moreton, Malcolm G J. Macduff, Magali Pudlarz
  • Publication number: 20140033604
    Abstract: A composition contains an additive for assisting with the regeneration of the PF in the form of an organic dispersion of iron particles and a detergent including a polyester quaternary ammonium salt.
    Type: Application
    Filed: December 19, 2011
    Publication date: February 6, 2014
    Applicants: THE LUBRIZOL CORPORATION, RHODIA OPERATIONS
    Inventors: Lauriane D'Alencon, Michael Lallemand, Virginie Harle, David J. Moreton, Malcolm G.J. MacDuff, Magali Pudlarz, Hannah Greenfield, Dean Thetford, Joanne L. Jones
  • Publication number: 20140007494
    Abstract: A composition contains an additive for assisting with regeneration of the PF in the form of an organic dispersion of iron particles in crystallized form and a detergent including a quaternary ammonium salt.
    Type: Application
    Filed: December 20, 2011
    Publication date: January 9, 2014
    Applicant: Rhodia Operations
    Inventors: Lauriane D'Alencon, Michael Lallemand, Virginie Harle, David J. Moreton, Malcolm G. J. MacDuff, Magali Pudlarz
  • Publication number: 20120302479
    Abstract: The present invention relates to a method of lubricating a driveline device comprising supplying to the driveline device a lubricating composition comprising an oil of lubricating viscosity and an aromatic hydroxy-substituted compound. The invention further provides for the use of the lubricating composition comprising the aromatic hydroxy-substituted compound as at least one of a filterability aid, and a wax crystal growth modifier/gelation inhibitor in the driveline device.
    Type: Application
    Filed: December 3, 2010
    Publication date: November 29, 2012
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Paul A. Robinson, Robert W. Alger, Simon D. Evans, Malcolm G.J. Macduff
  • Publication number: 20120192823
    Abstract: Compositions that include a detergent composition and an active metal compound are described wherein the detergent composition includes a quaternary ammonium salt detergent and optionally an oxygen-containing detergent, and wherein the active metal compound is in the form of a colloidal dispersion, comprising an organic phase, particles of an iron compound in its amorphous form, and at least one amphiphilic agent. These compositions can be used in fuels to provide improved engine performance by, for example, reducing fuel injector fouling in the engine and/or by improving the regeneration of the engine's particulate exhaust trap.
    Type: Application
    Filed: June 23, 2009
    Publication date: August 2, 2012
    Applicants: THE LUBRIZOL CORPORATION, RHODIA OPERATIONS
    Inventors: Virginie Harle, Michael Lallemand, David Moreton, Malcolm G J. Macduff, Magali Pudlarz
  • Publication number: 20110162260
    Abstract: The present invention provides a fuel additive composition comprising (a) an alkoxylate detergent, (b) a fatty acid or derivative thereof, or mixtures thereof wherein the additive composition is soluble in the fuel where the fuel is a blend of hydrocarbonaceous and nonhydrocarbonaceous fuel with a nonhydrocarbonaceous fuel content of at least 50 percent by weight. Additionally, the present invention further provides for a fuel composition comprising such a additive composition and such a fuel. The present invention also provides for a method of operating an engine and a method of reducing deposits in a fuel system by using such an additive composition and fuel blend.
    Type: Application
    Filed: September 14, 2009
    Publication date: July 7, 2011
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Malcolm G.J. MacDuff, Jonathan S. Vilardo
  • Patent number: 7704289
    Abstract: The present invention is directed to a method to clean up or keep clean the fuel system of a direct injection spark-ignited engine by operating the engine with a fuel composition that includes a liquid fuel and a fuel additive composition. The fuel additive composition useful in the present invention has at least one nitrogen-containing dispersant and optionally a fluidizer where the dispersant has a specific lipophilic parameter and the dispersant or the dispersant and the fluidizer have a specific hydrophilic-lipophilic parameter, the dispersant provides about 0.15 to about 50 ppm by weight nitrogen in the fuel composition, and the fluidizer and/or the dispersant provide about 10 to about 10,000 ppm by weight active components in the fuel composition. The method of the present invention is effective in controlling deposits in fuel injectors and combustion chambers of a direct injection spark-ignited engine.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: April 27, 2010
    Assignee: The Lubrizol Corporation
    Inventors: David C. Arters, Mitchell M. Jackson, Daniel T. Daly, Malcolm G. J. Macduff
  • Publication number: 20040168364
    Abstract: A detergent composition comprises a Mannich reaction product of a hydrocarbyl-substituted ortho-alkyl substituted phenol (1) or a mixture of the phenol (1) and a hydrocarbyl-substituted phenol (2), an aldehyde, and an amine where the phenol (1) is present in the mixture at about 50 mole % or higher. Concentrate and fuel compositions include the detergent composition. A method of controlling deposits in an internal combustion engine comprises operating the engine with the fuel composition which results in unexpectedly superior detergent performance.
    Type: Application
    Filed: October 14, 2003
    Publication date: September 2, 2004
    Inventors: Malcolm G.J. Macduff, Rodney J McAtee, Mitchell M Jackson, David J Moreton
  • Publication number: 20030177692
    Abstract: The present invention is directed to a method to clean up or keep clean the fuel system of a direct injection spark-ignited engine by operating the engine with a fuel composition that includes a liquid fuel and a fuel additive composition.
    Type: Application
    Filed: March 12, 2002
    Publication date: September 25, 2003
    Applicant: The Lubrizol Corporation
    Inventors: David C. Arters, Mitchell M. Jackson, Daniel T. Daly, Malcolm G.J. Macduff
  • Patent number: 6458172
    Abstract: The present invention is directed to fuel additive compositions of detergents combined with fluidizers and to hydrocarbon fuel compositions containing these fuel additive compositions. The fuel additive compositions of the present invention combine a Mannich detergent, formed from reaction of an alkylphenol with an aldehyde and an amine, with a fluidizer that can be a polyetheramine or a polyether or a mixture thereof and, optionally, with a succinimide detergent. Fuel compositions containing these fuel additive compositions are very effective in reducing intake valve deposits in gasoline fueled engines, especially when the weight ratio of detergent(s) to fluidizer(s) is about 1:1 on an actives basis.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: October 1, 2002
    Assignee: The Lubrizol Corporation
    Inventors: Malcolm G. J. Macduff, Mitchell M. Jackson, David C. Arters, Rodney J. McAtee
  • Patent number: 5376385
    Abstract: A process for binding water-sensitive active materials in essentially non-aqueous systems.
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: December 27, 1994
    Inventors: Derek J. Barton, Malcolm G. J. Macduff, John M. Newton
  • Patent number: 4596672
    Abstract: In a foaming liquid detergent composition suitable inter alia for hand dishwashing and including in its detergent-active system a dialkyl sulphosuccinate, performance is enhanced and physical characteristics (stability, viscosity, hydrotrope requirement) are improved by the inclusion of a fatty acid dialkanolamide such as lauric diethanolamide.
    Type: Grant
    Filed: June 21, 1985
    Date of Patent: June 24, 1986
    Assignee: Lever Brothers Company
    Inventors: Malcolm G. J. MacDuff, Appaya R. Naik, Melvin Scott