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).
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Patent number: 10450524Abstract: 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: GrantFiled: April 30, 2015Date of Patent: October 22, 2019Assignees: RHODIA OPERATIONS, THE LUBRIZOL CORPORATIONInventors: Virginie Harle, Michael Lallemand, David Moreton, Malcolm G J. MacDuff, Magali Pudlarz
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Patent number: 9914892Abstract: 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: GrantFiled: December 20, 2011Date of Patent: March 13, 2018Assignees: RHODIA OPERATIONS, THE LUBRIZOL CORPORATIONInventors: Lauriane D'Alencon, Michael Lallemand, Virginie Harle, David J. Moreton, Malcolm G. J. MacDuff, Magali Pudlarz
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Patent number: 9574148Abstract: 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: GrantFiled: December 19, 2011Date of Patent: February 21, 2017Assignees: RHODIA OPERATIONS, THE LUBRIZOL CORPORATIONInventors: Lauriane D'Alencon, Michael Lallemand, Virginie Harle, David J. Moreton, Malcolm G. J. MacDuff, Magali Pudlarz, Hannah Greenfield, Dean Thetford, Joanne L. Jones
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Publication number: 20150232775Abstract: 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: ApplicationFiled: April 30, 2015Publication date: August 20, 2015Inventors: Virginie Harle, Michael Lallemand, David Moreton, Malcolm G J. MACDUFF, Magali Pudlarz
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Patent number: 9045709Abstract: 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: GrantFiled: June 23, 2009Date of Patent: June 2, 2015Assignees: RHODIA OPERATIONS, THE LUBRIZOL CORPORATIONInventors: Virginie Harle, Michael Lallemand, David Moreton, Malcolm G J. Macduff, Magali Pudlarz
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Publication number: 20140033604Abstract: 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: ApplicationFiled: December 19, 2011Publication date: February 6, 2014Applicants: THE LUBRIZOL CORPORATION, RHODIA OPERATIONSInventors: Lauriane D'Alencon, Michael Lallemand, Virginie Harle, David J. Moreton, Malcolm G.J. MacDuff, Magali Pudlarz, Hannah Greenfield, Dean Thetford, Joanne L. Jones
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Publication number: 20140007494Abstract: 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: ApplicationFiled: December 20, 2011Publication date: January 9, 2014Applicant: Rhodia OperationsInventors: Lauriane D'Alencon, Michael Lallemand, Virginie Harle, David J. Moreton, Malcolm G. J. MacDuff, Magali Pudlarz
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Publication number: 20120302479Abstract: 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: ApplicationFiled: December 3, 2010Publication date: November 29, 2012Applicant: THE LUBRIZOL CORPORATIONInventors: Paul A. Robinson, Robert W. Alger, Simon D. Evans, Malcolm G.J. Macduff
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Publication number: 20120192823Abstract: 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: ApplicationFiled: June 23, 2009Publication date: August 2, 2012Applicants: THE LUBRIZOL CORPORATION, RHODIA OPERATIONSInventors: Virginie Harle, Michael Lallemand, David Moreton, Malcolm G J. Macduff, Magali Pudlarz
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Publication number: 20110162260Abstract: 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: ApplicationFiled: September 14, 2009Publication date: July 7, 2011Applicant: THE LUBRIZOL CORPORATIONInventors: Malcolm G.J. MacDuff, Jonathan S. Vilardo
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Patent number: 7704289Abstract: 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: GrantFiled: September 13, 2005Date of Patent: April 27, 2010Assignee: The Lubrizol CorporationInventors: David C. Arters, Mitchell M. Jackson, Daniel T. Daly, Malcolm G. J. Macduff
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Publication number: 20040168364Abstract: 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: ApplicationFiled: October 14, 2003Publication date: September 2, 2004Inventors: Malcolm G.J. Macduff, Rodney J McAtee, Mitchell M Jackson, David J Moreton
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Publication number: 20030177692Abstract: 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: ApplicationFiled: March 12, 2002Publication date: September 25, 2003Applicant: The Lubrizol CorporationInventors: David C. Arters, Mitchell M. Jackson, Daniel T. Daly, Malcolm G.J. Macduff
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Patent number: 6458172Abstract: 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: GrantFiled: March 3, 2000Date of Patent: October 1, 2002Assignee: The Lubrizol CorporationInventors: Malcolm G. J. Macduff, Mitchell M. Jackson, David C. Arters, Rodney J. McAtee
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Patent number: 5376385Abstract: A process for binding water-sensitive active materials in essentially non-aqueous systems.Type: GrantFiled: December 18, 1992Date of Patent: December 27, 1994Inventors: Derek J. Barton, Malcolm G. J. Macduff, John M. Newton
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Patent number: 4596672Abstract: 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: GrantFiled: June 21, 1985Date of Patent: June 24, 1986Assignee: Lever Brothers CompanyInventors: Malcolm G. J. MacDuff, Appaya R. Naik, Melvin Scott