Patents by Inventor Halou Oumar-Mahamat
Halou Oumar-Mahamat 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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Publication number: 20170183595Abstract: A lubricating oil base stock including one or more monoesters represented by the formula (I), (II), (III) and (IV) as defined herein. The lubricating oil base stock has a high temperature high shear (HTHS) viscosity of less than about 1.7 cP as determined by ASTM D4683, and a Noack volatility from about 15 to about 90 percent as determined by ASTM D5800. A lubricating oil containing the lubricating oil base stock including one or more monoesters represented by the formula (I), (II), (III) and (IV) as defined herein. A method for improving one or more of thermal and oxidative stability, solubility and dispersancy of polar additives, deposit control and traction control in a lubricating oil by using as the lubricating oil a formulated oil containing the lubricating oil base stock including one or more monoesters represented by the formula (I), (II), (III) and (IV) as defined herein.Type: ApplicationFiled: December 20, 2016Publication date: June 29, 2017Inventors: Man Kit Ng, Halou Oumar-Mahamat, Hong Cheng, David A. Blain, Kathleen K. Cooper, James T. Carey, Michael R. Douglass, Percy R. Kanga, Abhimanyu O. Patil, Satish Bodige, Kyle G. Lewis, Mark P. Hagemeister
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Publication number: 20170183597Abstract: A composition including one or more diester compounds represented by the formula as defined herein. The composition has a viscosity (Kv100) from about 1 cSt to about 10 cSt at 100° C. as determined by ASTM D445, a viscosity index (VI) from about ?100 to about 300 as determined by ASTM D2270, and a Noack volatility of no greater than 50 percent as determined by ASTM D5800. A process for producing the composition, a lubricating oil base stock and lubricating oil containing the composition, and a method for improving one or more of thermal and oxidative stability, solubility and dispersancy of polar additives, deposit control and traction control in a lubricating oil by using as the lubricating oil a formulated oil containing the composition.Type: ApplicationFiled: December 20, 2016Publication date: June 29, 2017Inventors: Man Kit Ng, Halou Oumar-Mahamat, Hong Cheng, David A. Blain
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Publication number: 20170137721Abstract: Methods are provided for producing Group II base stocks having high viscosity and also having one or more properties indicative of a high quality base stock. The resulting Group II base stocks can have a viscosity at 100° C. and/or a viscosity at 40° C. that is greater than the corresponding viscosity for a conventional Group II base stock. Additionally, the resulting Group II base stocks can have one or more properties that are indicative of a high quality base stock.Type: ApplicationFiled: October 24, 2016Publication date: May 18, 2017Inventors: Suzzy C.H. Ho, Charles L. Baker, JR., Shuji Luo, Halou Oumar-Mahamat
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Publication number: 20170137733Abstract: Methods are provided for producing Group III base stocks having high viscosity and also having one or more properties indicative of a high quality base stock. The resulting Group III base stocks can have a viscosity at 100° C. and/or a viscosity at 40° C. that is greater than the corresponding viscosity for a conventional Group III base stock. Additionally, the resulting Group III base stocks can have one or more properties that are indicative of a high quality base stock.Type: ApplicationFiled: October 24, 2016Publication date: May 18, 2017Inventors: Suzzy C.H. Ho, Charles L. Baker, JR., Shuji Luo, Halou Oumar-Mahamat
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Publication number: 20170137726Abstract: Methods are provided for producing Group I base stocks having high viscosity and also having one or more properties indicative of a high quality base stock. The resulting Group I base stocks can have a viscosity at 100° C. and/or a viscosity at 40° C. that is greater than the corresponding viscosity for a conventional Group I bright stock formed by solvent processing. Additionally, the resulting Group I base stocks can have one or more properties that are indicative of a high quality base stock.Type: ApplicationFiled: October 24, 2016Publication date: May 18, 2017Inventors: Suzzy C.H. Ho, Charles L. Baker, JR., Shuji Luo, Halou Oumar-Mahamat
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Publication number: 20170137734Abstract: A composition that includes one or more compounds represented by the formula R1—O—R2 wherein R1 is a substituted or unsubstituted aryl or polyaryl group having from about 4 to about 40 carbon atoms, and R2 is a substituted or unsubstituted, linear or branched, alkyl group having from about 4 to about 40 carbon atoms. The composition has a viscosity (Kv100) from about 1 to about 10 cSt at 100° C. as determined by ASTM D-445, a viscosity index (VI) from about ?100 to about 300 as determined by ASTM D-2270, and a Noack volatility of no greater than 50 percent as determined by ASTM D-5800. The disclosure also relates to a process for producing the composition, a lubricating oil base stock and lubricating oil containing the composition, and a method of reducing boundary friction and improving dispersancy of polar additives of a lubricating oil by using as the lubricating oil a formulated oil containing the composition.Type: ApplicationFiled: October 19, 2016Publication date: May 18, 2017Inventors: Abhimanyu O. Patil, Satish Bodige, Shuji Luo, Shane Deighton, Halou Oumar-Mahamat
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Publication number: 20160152914Abstract: Methods are provided for producing lubricant base oils from petrolatum. After solvent dewaxing of a brightstock raffinate to form a brightstock base oil, petrolatum is generated as a side product. The petrolatum can be hydroprocessed to form base oils in high yield. The base oils formed from hydroprocessing of petrolatum have an unexpected pour point relationship. For a typical lubricant oil feedstock, the pour point of the base oils generated from the feedstock increases with the viscosity of the base oil. By contrast, lubricant base oils formed from hydroprocessing of petrolatum have a relatively flat pour point relationship, and some of the higher viscosity base oils unexpectedly have lower pour points than lower viscosity base oils generated from the same petrolatum feed. The base oils from petrolatum are also unusual in yielding both high viscosity and high viscosity index and can be generated while maintaining a high yield.Type: ApplicationFiled: February 9, 2016Publication date: June 2, 2016Inventors: Jeenok T. Kim, Gary P. Schleicher, Halou Oumar-Mahamat, Chad H. Mondor
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Patent number: 9284500Abstract: Methods are provided for producing lubricant base oils from petrolatum. After solvent dewaxing of a brightstock raffinate to form a brightstock base oil, petrolatum is generated as a side product. The petrolatum can be hydroprocessed to form base oils in high yield. The base oils formed from hydroprocessing of petrolatum have an unexpected pour point relationship. For a typical lubricant oil feedstock, the pour point of the base oils generated from the feedstock increases with the viscosity of the base oil. By contrast, lubricant base oils formed from hydroprocessing of petrolatum have a relatively flat pour point relationship, and some of the higher viscosity base oils unexpectedly have lower pour points than lower viscosity base oils generated from the same petrolatum feed. The base oils from petrolatum are also unusual in yielding both high viscosity and high viscosity index and can be generated while maintaining a high yield.Type: GrantFiled: March 4, 2014Date of Patent: March 15, 2016Assignee: ExxonMobil Research and Engineering CompanyInventors: Jeenok T. Kim, Gary Paul Schleicher, Halou Oumar-Mahamat, Chad Hinden Mondor
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Publication number: 20140262944Abstract: Methods are provided for producing lubricant base oils from petrolatum. After solvent dewaxing of a brightstock raffinate to form a brightstock base oil, petrolatum is generated as a side product. The petrolatum can be hydroprocessed to form base oils in high yield. The base oils formed from hydroprocessing of petrolatum have an unexpected pour point relationship. For a typical lubricant oil feedstock, the pour point of the base oils generated from the feedstock increases with the viscosity of the base oil. By contrast, lubricant base oils formed from hydroprocessing of petrolatum have a relatively flat pour point relationship, and some of the higher viscosity base oils unexpectedly have lower pour points than lower viscosity base oils generated from the same petrolatum feed. The base oils from petrolatum are also unusual in yielding both high viscosity and high viscosity index and can be generated while maintaining a high yield.Type: ApplicationFiled: March 4, 2014Publication date: September 18, 2014Applicant: ExxonMobil Research and Engineering CompanyInventors: Jeenok T. Kim, Gary Paul Schleicher, Halou Oumar-Mahamat, Chad Hinden Mondor
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Publication number: 20140163285Abstract: A process of catalytically cracking a feedstock based on a biocomponent contacts the feedstock with a catalytic cracking catalyst comprising a basic metal oxide on a porous oxide support at an elevated cracking temperature to eliminate oxygen from the biocomponent to form cracked hydrocarbon residues. The basic metal oxide of the cracking catalyst is preferably a metal oxide of Group 2 of the Periodic Table (IUPAC) such as calcium or magnesium on a support comprised of a non-acidic form of alumina such as gibbsite or boehmite. Preferred feedstocks are those based on triglycerides, especially vegetable oils, animal fats and algae oils.Type: ApplicationFiled: November 8, 2013Publication date: June 12, 2014Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: John Scott Buchanan, Halou Oumar-Mahamat, Wayne Richard Kliewer
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Patent number: 8704020Abstract: Biomass based feeds are processed under hydrothermal treatment conditions, e.g., to produce a hydrocarbon liquid product and a solids portion. The hydrothermal treatment is performed in the presence of a dissolved catalyst or catalyst precursor. The presence of the dissolved catalyst or catalyst precursor can modify the nature of the hydrocarbon products produced from the hydrothermal treatment.Type: GrantFiled: October 31, 2011Date of Patent: April 22, 2014Assignee: ExxonMobil Research and Engineering CompanyInventors: Virginia M. Roberts, Michel Daage, James R. Bielenberg, Paul J. Berlowitz, Paul D. Oldenburg, David C. Long, Halou Oumar-Mahamat
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Patent number: 8704019Abstract: Biomass based feeds are processed under hydrothermal treatment conditions to produce a hydrocarbon liquid product and a solids portion. The hydrothermal treatment is performed in the presence of catalyst particles. The presence of the heterogeneous catalyst can modify the nature of the hydrocarbon products produced from the hydrothermal treatment. After the hydrothermal treatment, the catalyst particles can be separated from the algae-based solids, to allow for recycle of the catalyst particles.Type: GrantFiled: October 31, 2011Date of Patent: April 22, 2014Assignee: Exxonmobil Research and Engineering CompanyInventors: Paul D. Oldenburg, Virginia M. Roberts, Michel Daage, Paul J. Berlowitz, David C. Long, Halou Oumar-Mahamat
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Patent number: 8624070Abstract: Biomass based feeds are processed under hydrothermal treatment conditions to produce a hydrocarbon liquid product and a solids portion. The solids portion can contain a portion of the phosphorus from the biomass feed. The amount of phosphorus in the solids portion can be increased for some biomass feeds by adding a multivalent metal to the feed. The phosphorus from the solids portion can be recycled for further use, such as for growth of additional biomass.Type: GrantFiled: October 31, 2011Date of Patent: January 7, 2014Assignee: ExxonMobil Research and Engineering CompanyInventors: Paul D. Oldenburg, James R. Bielenberg, Virginia M. Roberts, Halou Oumar-Mahamat, Peter J. Domaille
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Patent number: 8487148Abstract: Biomass based feeds are processed under hydrothermal treatment conditions, e.g., to produce a hydrocarbon liquid product and a solids portion. The hydrothermal treatment can be performed in the presence of heterogeneous catalyst particles that can optionally include a catalyst metal or metal salt. The presence of the heterogeneous catalyst can modify the nature of the hydrocarbon products produced from the hydrothermal treatment.Type: GrantFiled: October 31, 2011Date of Patent: July 16, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: Virginia M. Roberts, Michel Daage, Paul D. Oldenburg, James R. Bielenberg, Paul J. Berlowitz, David C. Long, Halou Oumar-Mahamat
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Publication number: 20120130141Abstract: Biomass based feeds are processed under hydrothermal treatment conditions to produce a hydrocarbon liquid product and a solids portion. The hydrothermal treatment is performed in the presence of catalyst particles. The presence of the heterogeneous catalyst can modify the nature of the hydrocarbon products produced from the hydrothermal treatment. After the hydrothermal treatment, the catalyst particles can be separated from the algae-based solids, to allow for recycle of the catalyst particles.Type: ApplicationFiled: October 31, 2011Publication date: May 24, 2012Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Paul D. Oldenburg, Virginia M. Roberts, Michel Daage, Paul J. Berlowitz, David C. Long, Halou Oumar-Mahamat
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Publication number: 20120101319Abstract: Biomass based feeds are processed under hydrothermal treatment conditions, e.g., to produce a hydrocarbon liquid product and a solids portion. The hydrothermal treatment is performed in the presence of a dissolved catalyst or catalyst precursor. The presence of the dissolved catalyst or catalyst precursor can modify the nature of the hydrocarbon products produced from the hydrothermal treatment.Type: ApplicationFiled: October 31, 2011Publication date: April 26, 2012Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Virginia M. ROBERTS, Michel DAAGE, James R. BIELENBERG, Paul J. BERLOWITZ, Paul D. OLDENBURG, David C. LONG, Halou OUMAR-MAHAMAT
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Publication number: 20120096762Abstract: Biomass based feeds are processed under hydrothermal treatment conditions to produce a hydrocarbon liquid product and a solids portion. The solids portion can contain a portion of the phosphorus from the biomass feed. The amount of phosphorus in the solids portion can be increased for some biomass feeds by adding a multivalent metal to the feed. The phosphorus from the solids portion can be recycled for further use, such as for growth of additional biomass.Type: ApplicationFiled: October 31, 2011Publication date: April 26, 2012Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Paul D. OLDENBURG, James R. BIELENBERG, Virginia M. ROBERTS, Halou OUMAR-MAHAMAT, Peter J. DOMAILLE
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Publication number: 20120094879Abstract: Biomass based feeds are processed under hydrothermal treatment conditions, e.g., to produce a hydrocarbon liquid product and a solids portion. The hydrothermal treatment can be performed in the presence of heterogeneous catalyst particles that can optionally include a catalyst metal or metal salt. The presence of the heterogeneous catalyst can modify the nature of the hydrocarbon products produced from the hydrothermal treatment.Type: ApplicationFiled: October 31, 2011Publication date: April 19, 2012Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Virginia M. ROBERTS, Michel DAAGE, Paul D. OLDENBURG, James R. BIELENBERG, Paul J. BERLOWITZ, David C. LONG, Halou OUMAR-MAHAMAT
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Patent number: 8034754Abstract: The invention relates to lubricants which contain a phosphorus to nitrogen ratio of ?1.0 and a sulfur content of >1.4 wt. %. The phosphorus contribution is primarily from an acid phosphate species and the sulfur content is primarily from an antiwear agent. This lubricant composition has been found to provide exceptional protection to new gears or “green gears”, during the break-in phase.Type: GrantFiled: March 31, 2005Date of Patent: October 11, 2011Assignee: The Lubrizol CorporationInventors: William T. Sullivan, Halou Oumar-Mahamat, Ellen Bernice Brandes
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Publication number: 20110143982Abstract: The invention concerns an additive package for a lubricating fluid or grease containing an effective amount of a phosphorus-containing antiwear additive, the improvement comprising the absence of primary, secondary, tertiary, cyclic low molecular weight aliphatic amines with a carbon number of C30 or less.Type: ApplicationFiled: February 24, 2011Publication date: June 16, 2011Applicant: THE LUBRIZOL CORPORATIONInventors: William T. Sullivan, Halou Oumar-Mahamat, Shi-Ming Wu, Ellen B. Brandes