Patents by Inventor Jean-Louis Le Coent
Jean-Louis Le Coent 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: 8778856Abstract: A carboxylate detergent prepared by the process comprising (a) alkylating a hydroxyaromatic compound with at least one alpha olefin oligomer, derived from C8 to C20 alpha olefins, to thereby produce an alkylhydroxyaromatic compound, and wherein at least 90% of the molecules in the alkylhydroxyaromatic compound have the alkyl group attached at the 4-position or higher from the terminus of the longest chain of the alkyl group, and further wherein the alkyl group comprises at least one hydrocarbon tail of at least 7 carbons; (b) neutralizing the resulting alkylated hydroxyaromatic compound with an alkali metal base; (c) carbonating the alkali metal salt from step (b) with carbon dioxide; (d) acidifying the salt produced in step (c); and (e) overbasing the resulting alkylated hydroxyaromatic carboxylic acid.Type: GrantFiled: December 2, 2009Date of Patent: July 15, 2014Assignees: Chevron Oronite Company LLC, Chevron Oronita S.A.Inventors: Curtis Bay Campbell, Gilles P. Sinquin, Jean-Louis Le Coent, Jan Anthony Burval
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Patent number: 8618029Abstract: The present invention provides overbased detergents as lubricating oil additives effective for the lubrication of mechanical components in land and marine engines, such as, for example, hydraulic systems, transmissions, two-stroke and four-stroke vehicular engines, trunk piston and two-stroke crosshead marine engines. These overbased detergents lead to improved detergency and thermal stability performances versus high overbased sulfonates. Moreover, they are more compatible with commercial phenates than conventional sulfonates.Type: GrantFiled: December 22, 2003Date of Patent: December 31, 2013Assignee: Chevron Oronite S.A.Inventors: Jean-Louis Le Coent, Amedee Guellec
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Patent number: 8293698Abstract: Disclosed are detergent mixtures of alkyl aryl sulfonates of alkaline earth metals derived from linear olefins having a relatively high aryl ring attached on positions 1 or 2 or the linear alkyl chains. The compositions contain a relatively high amount of 1 or 2 tolyl or xylyl isomer of the linear alkylaryl sulfonate and employ a heavy alkyl benzene sulfonate derived from linear olefins and exhibit improved stability and compatibility.Type: GrantFiled: July 20, 2005Date of Patent: October 23, 2012Assignee: Chevron Oronite S.A.Inventors: Jean-Louis Le Coent, Pierre Tequi
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Patent number: 8188020Abstract: The present invention provides overbased detergents as lubricating additives effective for the lubrication of mechanical components in land and marine engines, such as, for example, hydraulic systems, transmissions, two-stroke and four-stroke vehicular engines, and trunk piston and two-stroke crosshead marine engines.Type: GrantFiled: December 22, 2003Date of Patent: May 29, 2012Assignee: Chevron Oronite S.A.Inventors: Jean-Louis Le Coent, Amedee Guellec, Eugene E. Spala
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Patent number: 8030258Abstract: A process for preparing an overbased alkaline earth metal alkylhydroxybenzoate, said process comprising overbasing an alkaline earth metal alkylhydroxybenzoate or a mixture of alkaline earth metal alkylhydroxybenzoate and up to 50 mole % of alkylphenol, based on the total mixture of alkylhydroxybenzoate and alkylphenol, with a molar excess of alkaline earth metal base and at least one acidic overbasing material in the presence of at least one carboxylic acid having from one to four carbon atoms and a solvent selected from the group consisting of aromatic hydrocarbons, aliphatic hydrocarbons, monoalcohols, and mixtures thereof.Type: GrantFiled: July 29, 2005Date of Patent: October 4, 2011Assignee: Chevron Oronite Company LLCInventor: Jean-Louis Le Coent
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Patent number: 7964611Abstract: An alkaline earth metal borated sulfonate prepared by a process comprising reacting a mixture of the following materials (A) (1) at least one of an oil soluble sulfonic acid or alkaline earth sulfonate salt or mixtures thereof (2) at least one source of an alkaline earth metal; and (3) at least one source of boron, in the presence of a mixture of comprising (4) at least one hydrocarbon solvent; and (5) at least one low molecular weight alcohol; and (6) from 0 to less than 10 mole percent, relative to the source of boron, of an overbasing acid, other than the source of boron; and (B) heating the reaction product of (A) to a temperature above the distillation temperatures of (4) and (5) to distill (4), (5) and water of reaction, wherein no additional water is added in the process.Type: GrantFiled: December 15, 2008Date of Patent: June 21, 2011Assignee: Chevron Oronite Company LLCInventors: Jean-Louis Le Coent, Pierre Tequi, John McDonald
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Patent number: 7960324Abstract: An additive composition providing improved low temperature viscosity, corrosion and detergent properties when used in lubricating oils for internal combustion engines is presented. The additive composition comprises an unsulfurized carboxylate detergent-dispersant additive having been modified by incorporation of from about 3.2 wt % to 7.5 wt %, based on the total additive composition, of an alkaline earth metal salt of a linear, saturated carboxylic acid having from about 16 to about 20 carbon atoms and wherein the additive composition has a superalkalinization ratio of less than about 1.4:1, a TBN of less than about 200 and a sediment value of less than about 0.2% by volume.Type: GrantFiled: September 3, 2004Date of Patent: June 14, 2011Assignee: Chevron Oronite Company LLCInventors: Jean-Louis Le Coent, Amedee Guellec
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Patent number: 7956022Abstract: A process for preparing alkylhydroxybenzoate detergent-dispersant additives having low sulfur content and high TBN is described. The alkali metal alkylhydroxylbenzoate, alkaline earth metal alkylhydroxybenzoate and overbased alkaline earth metal alkylhydroxybenzoate reaction products described have a sulfur content in the range of from about 0.1 to 1.2 wt % are effective anti-corrosive detergent-dispersant additives in lubricating oil compositions.Type: GrantFiled: July 29, 2005Date of Patent: June 7, 2011Assignee: Chevron Oronite Company LLCInventors: Jean-Louis Le Coent, Jeffrey J. Toman, Curtis B. Campbell
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Publication number: 20110130315Abstract: A carboxylate detergent prepared by the process comprising (a) alkylating a hydroxyaromatic compound with at least one alpha olefin oligomer, derived from C8 to C20 alpha olefins, to thereby produce an alkylhydroxyaromatic compound, and wherein at least 90% of the molecules in the alkylhydroxyaromatic compound have the alkyl group attached at the 4-position or higher from the terminus of the longest chain of the alkyl group, and further wherein the alkyl group comprises at least one hydrocarbon tail of at least 7 carbons; (b) neutralizing the resulting alkylated hydroxyaromatic compound with an alkali metal base; (c) carbonating the alkali metal salt from step (b) with carbon dioxide; (d) acidifying the salt produced in step (c); and (e) overbasing the resulting alkylated hydroxyaromatic carboxylic acid.Type: ApplicationFiled: December 2, 2009Publication date: June 2, 2011Inventors: Curtis Bay Campbell, Gilles P. Sinquin, Jean-Louis Le Coent, Jan Anthony Burval
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Patent number: 7951760Abstract: A process for preparing an overbased alkali metal alkylhydroxybenzoate, said process comprising overbasing an alkali metal alkylhydroxybenzoate or a mixture of alkali metal alkylhydroxybenzoate and up to 50 mole % of alkylphenol, based on the total mixture of alkylhydroxybenzoate and alkylphenol, with a molar excess of alkaline earth metal base and at least one acidic overbasing material in the presence of at least one carboxylic acid having from one to four carbon atoms and a solvent selected from the group consisting of aromatic hydrocarbons, aliphatic hydrocarbons, monoalcohols and mixtures thereof.Type: GrantFiled: July 29, 2005Date of Patent: May 31, 2011Assignee: Chevron Oronite S.A.Inventor: Jean-Louis Le Coent
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Patent number: 7563938Abstract: The present invention is directed to novel alkylated aromatic compositions, zeolite catalyst compositions and processes for making the same. The catalyst compositions comprise zeolite Y and mordenite zeolite having a controlled macropore structure. The present invention is also directed to the preparation of the catalyst compositions and their use in the preparation of novel alkylated aromatic compositions. The catalyst compositions of the present invention exhibit reduced deactivation rates during the alkylation process, thereby increasing the life of the catalysts.Type: GrantFiled: February 15, 2006Date of Patent: July 21, 2009Assignees: Chevron Oronite Company LLC, Chevron Oronite S.A.Inventors: Curt B. Campbell, Thomas V. Harris, Pierre Tequi, Jean-Louis Le Coent
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Patent number: 7563937Abstract: The present invention is directed to a zeolite Y catalyst having a controlled macropore structure. The present invention is also directed to a zeolite Y catalyst composite and a process for preparing the catalyst composite. The catalyst composite exhibits reduced deactivation rates during the alkylation process, thereby increasing the life of the catalyst. The present invention is also directed to processes for the preparation of carbonated, overbased aromatic sulfonates, which processes comprise alkylation, carbonation of aromatic hydrocarbons with one or more olefins.Type: GrantFiled: February 15, 2006Date of Patent: July 21, 2009Assignees: Chevron Oronite Company LLC, Chevron Oronite S.A.Inventors: Thomas V. Harris, Curt B. Campbell, Paul J. Marcatntonio, Pierre Tequi, Jean-Louis Le Coent
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Publication number: 20090099385Abstract: An alkaline earth metal borated sulfonate prepared by a process comprising reacting a mixture of the following materials(A) (1) at least one of an oil soluble sulfonic acid or alkaline earth sulfonate salt or mixtures thereof (2) at least one source of an alkaline earth metal; and (3) at least one source of boron, in the presence of a mixture of comprising (4) at least one hydrocarbon solvent; and (5) at least one low molecular weight alcohol; and (6) from 0 to less than 10 mole percent, relative to the source of boron, of an overbasing acid, other than the source of boron; and (B) heating the reaction product of (A) to a temperature above the distillation temperatures of (4) and (5) to distill (4), (5) and water of reaction, wherein no additional water is added in the process.Type: ApplicationFiled: December 15, 2008Publication date: April 16, 2009Inventors: Jean-Louis Le Coent, Pierre Tequi, John McDonald
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Patent number: 7479568Abstract: An improved process for preparing an alkaline earth metal borated sulfonate comprising reacting a mixture of the following materials(A) (1) at least one of an oil soluble sulfonic acid or alkaline earth sulfonate salt or mixtures thereof (2) at least one source of an alkaline earth metal; and (3) at least one source of boron, in the presence of a mixture of comprising (4) at least one hydrocarbon solvent; and (5) at least one low molecular weight alcohol; and (6) from 0 to less than 10 mole percent, relative to the source of boron, of an overbasing acid, other than the source of boron; and (B) heating the reaction product of (A) to a temperature above the distillation temperatures of (4) and (5) to distill (4), (5) and water of reaction, wherein no additional water is added in the process.Type: GrantFiled: November 30, 2005Date of Patent: January 20, 2009Assignee: Chevron Oronite Company LLCInventors: Jean-Louis Le Coent, Pierre Tequi, John McDonald
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Publication number: 20070123439Abstract: An improved process for preparing an alkaline earth metal borated sulfonate comprising reacting a mixture of the following materials(A) (1) at least one of an oil soluble sulfonic acid or alkaline earth sulfonate salt or mixtures thereof (2) at least one source of an alkaline earth metal; and (3) at least one source of boron, in the presence of a mixture of comprising (4) at least one hydrocarbon solvent; and (5) at least one low molecular weight alcohol; and (6) from 0 to less than 10 mole percent, relative to the source of boron, of an overbasing acid, other than the source of boron; and (B) heating the reaction product of (A) to a temperature above the distillation temperatures of (4) and (5) to distill (4), (5) and water of reaction, wherein no additional water is added in the process.Type: ApplicationFiled: November 30, 2005Publication date: May 31, 2007Inventors: Jean-Louis Le Coent, Pierre Tequi, John McDonald
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Patent number: 7183452Abstract: The present invention is directed to novel alkylated aromatic compositions, zeolite catalyst compositions and processes for making the same. The catalyst compositions comprise zeolite Y and mordenite zeolite having a controlled macropore structure. The present invention is also directed to the preparation of the catalyst compositions and their use in the preparation of novel alkylated aromatic compositions. The catalyst compositions of the present invention exhibit reduced deactivation rates during the alkylation process, thereby increasing the life of the catalysts.Type: GrantFiled: February 15, 2006Date of Patent: February 27, 2007Assignees: Chevron Oronite Company LLC, Chevron Oronite S.A.Inventors: Curt B. Campbell, Thomas V. Harris, Pierre Tequi, Jean-Louis Le Coent
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Publication number: 20070027057Abstract: A process for preparing alkylhydroxybenzoate detergent-dispersant additives having low sulfur content and high TBN is described. The alkali metal alkylhydroxylbenzoate, alkaline earth metal alkylhydroxybenzoate and overbased alkaline earth metal alkylhydroxybenzoate reaction products described have a sulfur content in the range of from about 0.1 to 1.2 wt % are effective anti-corrosive detergent-dispersant additives in lubricating oil compositions.Type: ApplicationFiled: July 29, 2005Publication date: February 1, 2007Inventors: Jean-Louis Le Coent, Jeffrey Toman, Curtis Campbell
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Publication number: 20070027044Abstract: A process for preparing an overbased alkali metal alkylhydroxybenzoate, said process comprising overbasing an alkali metal alkylhydroxybenzoate or a mixture of alkali metal alkylhydroxybenzoate and up to 50 mole % of alkylphenol, based on the total mixture of alkylhydroxybenzoate and alkylphenol, with a molar excess of alkaline earth metal base and at least one acidic overbasing material in the presence of at least one carboxylic acid having from one to four carbon atoms and a solvent selected from the group consisting of aromatic hydrocarbons, aliphatic hydrocarbons, monoalcohols and mixtures thereof.Type: ApplicationFiled: July 29, 2005Publication date: February 1, 2007Inventor: Jean-Louis Le Coent
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Publication number: 20070027043Abstract: A process for preparing an overbased alkaline earth metal alkylhydroxybenzoate, said process comprising overbasing an alkaline earth metal alkylhydroxybenzoate or a mixture of alkaline earth metal alkylhydroxybenzoate and up to 50 mole % of alkylphenol, based on the total mixture of alkylhydroxybenzoate and alkylphenol, with a molar excess of alkaline earth metal base and at least one acidic overbasing material in the presence of at least one carboxylic acid having from one to four carbon atoms and a solvent selected from the group consisting of aromatic hydrocarbons, aliphatic hydrocarbons, monoalcohols, and mixtures thereof.Type: ApplicationFiled: July 29, 2005Publication date: February 1, 2007Inventor: Jean-Louis Le Coent
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Publication number: 20070021317Abstract: Disclosed are detergent mixtures of alkyl aryl sulfonates of alkaline earth metals derived from linear olefins having a relatively high aryl ring attached on positions 1 or 2 or the linear alkyl chains. The compositions contain a relatively high amount of 1 or 2 tolyl or xylyl isomer of the linear alkylaryl sulfonate and employ a heavy alkyl benzene sulfonate derived from linear olefins and exhibit improved stability and compatibility.Type: ApplicationFiled: July 20, 2005Publication date: January 25, 2007Inventors: Jean-Louis Le Coent, Pierre Tequi