Patents by Inventor Karine Longchambon
Karine Longchambon 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: 20150005449Abstract: A blocked mercaptosilane of following general formula (I): (HO) R21 Si—Z—S—C (?O)—A in which: the symbols R1, which are identical or different, each represent a monovalent hydrocarbon group chosen from linear or branched alkyls, cycloalkyls or aryls having from 1 to 18 carbon atoms; the symbol A represents hydrogen or a monovalent hydrocarbon group chosen from linear or branched alkyls, cycloalkyls or aryls having from 1 to 18 carbon atoms and linear or branched alkoxyalkyls having from 2 to 8 carbon atoms; the symbol Z represents a divalent bonding group comprising from 1 to 18 carbon atoms.Type: ApplicationFiled: December 12, 2012Publication date: January 1, 2015Inventors: Karine Longchambon, José Carlos Araujo Da Silva, Nicolas Seeboth
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Publication number: 20140371345Abstract: A tire rubber composition based on at least one diene elastomer, an inorganic filler as reinforcing filler, a coupling agent providing the bonding between the inorganic filler and the diene elastomer, wherein the coupling agent is an azosilane compound of formula (I): (G1)3-a(G2)aSi—Z—NH—C(O)—N?N—C(O)—NH—Z—Si(G1)3-a(G2)a (I) wherein: G1, identical to or different, each represent a monovalent hydrocarbon group chosen from branched or unbranched, substituted or unsubstituted alkyls having from 1 to 18 carbon atoms, substituted or unsubstituted cycloalkyls or aryls having from 5 to 18 carbon atoms, G2, identical to or different, each represent a hydroxyl group or a monovalent group chosen from branched or unbranched, substituted or unsubstituted alkoxyls having from 1 to 18 carbon atoms, substituted or unsubstituted cycloalkoxyls having from 5 to 18 carbon atoms, Z represents a divalent linking group having from 1 to 18 carbon atoms, a is equal to 1, 2 or 3.Type: ApplicationFiled: March 28, 2012Publication date: December 18, 2014Applicant: Compagnie Generale Des Etablissements MichelinInventors: Christelle Darnaud, José Carlos Araujo Da Silva, Karine Longchambon, Anne Veyland
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Publication number: 20140228479Abstract: The invention relates to a tire rubber composition based on at least one diene elastomer, an inorganic filler as reinforcing filler, a coupling agent providing the bonding between the inorganic filler and the diene elastomer, characterized in that the coupling agent is an azosilane compound of following formula (I): (G1)3-a(G2)aSi—Z—NH—C(O)—N?N—C(O)—NH—Z—Si(G1)3-a(G2)a ??(I) in which: G1, identical to or different from one another, each represent a monovalent hydrocarbon-based group chosen from branched or unbranched, substituted or unsubstituted alkyls, having from 1 to 18 carbon atoms, substituted or unsubstituted cycloalkyls or aryls, having from 5 to 18 carbon atoms, G2, identical to or different from one another, each represent a hydroxyl group or a monovalent group in the form (G3)n-OG1 in which G3 is a divalent linking group having from 1 to 18 carbon atoms and comprising one or more heteroatoms chosen from O, S, Si and N, n being a number equal to or higher than 0 and less than or equal to 18, ZType: ApplicationFiled: March 28, 2012Publication date: August 14, 2014Applicants: Michelin Recherche et Technique S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Christelle Darnaud, José Carlos Araujo Da Silva, Karine Longchambon, Anne Veyland
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Patent number: 8623937Abstract: The invention relates to a rubber composition that is free of zinc or that contains less than 0.5 phr of zinc, which can be used for the manufacture of tyres, based on at least: one diene elastomer; one sulphur-based crosslinking system; one inorganic filler as reinforcing filler; one blocked mercaptosilane of general formula I below: (HO)3-nR1n—Si—Z—S—C(?O)-A in which: R1, which are identical or different, each represent a monovalent hydrocarbon-based group chosen from alkyls, which are linear or branched, cycloalkyls or aryls, having from 1 to 18 carbon atoms; A represents hydrogen or a monovalent hydrocarbon-based group chosen from alkyls, which are linear or branched, cycloalkyls or aryls, having from 1 to 18 carbon atoms; Z represents a divalent bonding group comprising from 1 to 18 carbon atoms; n is an integer equal to 0, 1 or 2.Type: GrantFiled: December 18, 2009Date of Patent: January 7, 2014Assignees: Compagnie Generale des Etablissements Michelin, Michelin Recherche et Technique S.A.Inventors: Laure Belin, Karine Longchambon, José Carlos Araujo Da Silva
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Patent number: 8492475Abstract: A subject-matter of the present invention is a rubber composition intended for the manufacture of tires or of tire semi-finished products, based on at least one isoprene elastomer, an inorganic filler as reinforcing filler and a polyfunctional organosiloxane coupling agent capable of providing the bonding between the reinforcing inorganic filler and the isoprene elastomer, comprising per molecule, grafted to its silicon atoms, on the one hand at least one hydroxyl or hydrolysable functional group allowing it to be grafted to the reinforcing inorganic filler and, on the other hand, at least one group bearing at least one azodicarbonyl functional group —CO—N?N—CO— allowing it to be grafted to the isoprene elastomer.Type: GrantFiled: March 2, 2011Date of Patent: July 23, 2013Assignee: Michelin Recherche et Technique S.A.Inventors: José Carlos Araujo Da Silva, Karine Longchambon, Sebastien Sterin
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Publication number: 20120165468Abstract: An organosilane of general formula I below: (HO)2 R1Si—Z—Sm—R2 in which: R1, which are identical or different, each represent a monovalent hydrocarbon-based group chosen from alkyls, which are linear or branched, cycloalkyls or aryls, having from 1 to 18 carbon atoms; R2 represents a monovalent hydrocarbon-based group chosen from alkyls, which are linear or branched, cycloalkyls or aryls, having from 1 to 30 carbon atoms; Z represents a divalent bonding group comprising from 1 to 18 carbon atoms; and m is a number greater than or equal to 2.Type: ApplicationFiled: May 20, 2010Publication date: June 28, 2012Applicants: Michelin Recherche et Technique S.A., Societe De Technologie MichelinInventors: Karine Longchambon, José Carlos Araujo Da Silvia, Nicolas Seeboth, Sergey Ivanov
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Publication number: 20120157571Abstract: A rubber composition that can be used for the manufacture of tires, based on at least one diene elastomer; one sulphur-based crosslinking system; one inorganic filler as reinforcing filler; one coupling agent of general formula I below: (HO)3-nR1nSi—Z—Sm—R2 wherein in which: R1, which are identical or different, each represent a monovalent hydrocarbon-based group chosen from alkyls, which are linear or branched, cycloalkyls or aryls, having from 1 to 18 carbon atoms; R2 represents a monovalent hydrocarbon-based group chosen from alkyls, which are linear or branched, cycloalkyls or aryls, having from 1 to 30 carbon atoms; Z represents a divalent bonding group comprising from 1 to 18 carbon atoms; n is an integer equal to 0, 1 or 2; and m is a number greater than or equal to 2.Type: ApplicationFiled: May 20, 2010Publication date: June 21, 2012Applicants: Michelin Recherche et Technique S.A., Societe De Technologie MichelinInventors: Karine Longchambon, José Carlos Araujo Da Silva, Nocolas Seeboth
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Publication number: 20110306700Abstract: The invention relates to a rubber composition that is free of zinc or that contains less than 0.5 phr of zinc, which can be used for the manufacture of tyres, based on at least: one diene elastomer; one sulphur-based crosslinking system; one inorganic filler as reinforcing filler; one blocked mercaptosilane of general formula I below: (R3O)R2R1—Si—Z—S—C(?O)-A in which: R1 and R2, which are identical or different, represent a monovalent hydrocarbon-based group chosen from alkyls, which are linear or branched, cycloalkyls or aryls, having from 1 to 18 carbon atoms; R3 represents a monovalent hydrocarbon-based group chosen from linear or branched alkyls having from 1 to 4 carbon atoms; A represents hydrogen or a monovalent hydrocarbon-based group chosen from alkyls, which are linear or branched, cycloalkyls or aryls, having from 1 to 18 carbon atoms; Z represents a divalent bonding group comprising from 1 to 18 carbon atoms.Type: ApplicationFiled: December 18, 2009Publication date: December 15, 2011Applicant: Michelin Recherche ET Technique S.A.Inventors: Laure Belin, Karine Longchambon, José Carlos Araujo Da Silva
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Publication number: 20110294915Abstract: The invention relates to a rubber compound containing no or less than 0.5 phr zinc, which can be used for the manufacture of tyres, the compound being based on at least: a diene elastomer; a sulphur-based crosslinking system; an inorganic filler as reinforcing filler; and a blocked mercaptosilane of the following general formula (I) in which formula (I): R1 which are the same or different, each represent a monovalent hydrocarbon group chosen from alkyls, whether linear or branched, cycloalkyls or aryls, having 1 to 18 carbon atoms; A represents hydrogen or a monovalent hydrocarbon group chosen from alkyls, whether linear or branched, cycloalkyls or aryls, having 1 to 18 carbon atoms; Z represents a divalently bonded group having 1 to 18 carbon atoms; and n is an integer equal to 0, 1 or 2.Type: ApplicationFiled: December 18, 2009Publication date: December 1, 2011Applicants: Michelin Recherche et Technique S.A., Societe De Technologie MichelinInventors: Laure Belin, Karine Longchambon, José Carlos Araujo Da Silva
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Publication number: 20110294953Abstract: The invention relates to a blocked mercaptosilane of general formula I below: (HO)2R1—Si—Z—S—C(?O)-A in which: R1 represents a monovalent hydrocarbon-based group chosen from alkyls, which are linear or branched, cycloalkyls or aryls, having from 1 to 18 carbon atoms; A represents hydrogen or a monovalent hydrocarbon-based group chosen from alkyls, which are linear or branched, cycloalkyls or aryls, having from 1 to 18 carbon atoms; Z represents a divalent bonding group comprising from 1 to 18 carbon atoms.Type: ApplicationFiled: December 18, 2009Publication date: December 1, 2011Inventors: Nicolas Seeboth, Karine Longchambon, Laure Belin, Jóse Carlos Araujo Da Silva
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Publication number: 20110152458Abstract: A subject-matter of the present invention is a rubber composition intended for the manufacture of tyres or of tyre semi-finished products, based on at least one isoprene elastomer, an inorganic filler as reinforcing filler and a polyfunctional organosiloxane coupling agent capable of providing the bonding between the reinforcing inorganic filler and the isoprene elastomer, comprising per molecule, grafted to its silicon atoms, on the one hand at least one hydroxyl or hydrolysable functional group allowing it to be grafted to the reinforcing inorganic filler and, on the other hand, at least one group bearing at least one azodicarbonyl functional group —CO—N?N—CO— allowing it to be grafted to the isoprene elastomer.Type: ApplicationFiled: March 2, 2011Publication date: June 23, 2011Applicant: Michelin Recherche et Technique S.A.Inventors: Jose Carlos ARAUJO DA SILVA, Karine LONGCHAMBON, Sebastien STERIN
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Publication number: 20110009547Abstract: Rubber composition which can be used in particular for the manufacture of tyres or tyre semi-finished products, such as treads, the said composition being based on at least a diene elastomer, a reinforcing inorganic filler, a coupling agent and a hydroxysilane of formula (I): R1(R2)nSi(OH)3-n in which: n is equal to 0, 1 or 2; R1 represents a hydrocarbon group having at least 4 carbon atoms; R2 represents an alkyl having from 1 to 4 carbon atoms, the R2 alkyls being identical or different if n is equal to 2.Type: ApplicationFiled: November 14, 2008Publication date: January 13, 2011Inventors: Jose Carlos Araujo Da Silva, Laure Belin, Karine Longchambon, Nicolas Seeboth
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Publication number: 20090209709Abstract: A subject-matter of the present invention is a rubber composition intended for the manufacture of tyres or of tyre semi-finished products, based on at least one isoprene elastomer, an inorganic filler as reinforcing filler and a polyfunctional organosiloxane coupling agent capable of providing the bonding between the reinforcing inorganic filler and the isoprene elastomer, comprising per molecule, grafted to its silicon atoms, on the one hand at least one hydroxyl or hydrolysable functional group allowing it to be grafted to the reinforcing inorganic filler and, on the other hand, at least one group bearing at least one azodicarbonyl functional group —CO—N?N—CO— allowing it to be grafted to the isoprene elastomer.Type: ApplicationFiled: May 11, 2006Publication date: August 20, 2009Applicant: Michelin Recherche et Technique S.A.Inventors: Jose Carlos Araujo Da Silva, Karine Longchambon, Sabastien Sterin