Patents by Inventor Christophe Galland
Christophe Galland 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: 11092489Abstract: A system for computational imaging spectroscopy to provide compact and lightweight design, as well as large field of view of an object to be captured. The system includes imaging components, and computational device. The imaging components includes lens assembly, a fixed or variable-diameter aperture, spectral filter array and imaging sensor. The lens assembly provides wide angle of view, image-side telecentricity, and further may correct for longitudinal chromatic aberrations. The lens assembly may not provide correction of lateral chromatic aberrations. Furthermore, the lens assembly provides image-space telecentricity so as to chief rays are incident perpendicular to image sensor. The lens assembly may produce different chromatic aberrations pattern for each wavelength within the spectral range of interest.Type: GrantFiled: January 31, 2018Date of Patent: August 17, 2021Assignee: GAMAYA SAInventors: Yosef Akhtman, Christophe Galland
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Publication number: 20200348175Abstract: A system for computational imaging spectroscopy to provide compact and lightweight design, as well as large field of view of an object to be captured. The system includes imaging components, and computational device. The imaging components includes lens assembly, a fixed or variable-diameter aperture, spectral filter array and imaging sensor. The lens assembly provides wide angle of view, image-side telecentricity, and further may correct for longitudinal chromatic aberrations. The lens assembly may not provide correction of lateral chromatic aberrations. Furthermore, the lens assembly provides image-space telecentricity so as to chief rays are incident perpendicular to image sensor. The lens assembly may produce different chromatic aberrations pattern for each wavelength within the spectral range of interest.Type: ApplicationFiled: January 31, 2018Publication date: November 5, 2020Inventors: Yosef AKHTMAN, Christophe GALLAND
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Publication number: 20140334764Abstract: Optical devices that do not employ magneto-optics materials or non-linear effects to achieve non-reciprocal light propagation. The optical devices are compatible with the fabrication of monolithic photonic integrated circuits such as silicon-on-insulator planar lightwave circuits. In particular the devices use demonstrated passive (beam-splitters, waveguides) and active (phase modulators) components to achieve non-reciprocal light propagation. The devices can be used as non-reciprocal optical modulators or optical isolators when driven by a periodic radio frequency (RF) electric source.Type: ApplicationFiled: May 7, 2014Publication date: November 13, 2014Inventors: Christophe Galland, Thomas Baehr-Jones
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Patent number: 8039660Abstract: The present invention relates to the manufacture of nitrile compounds from unsaturated organic compounds by reaction with hydrogen cyanide. It relates more particularly to the manufacture of nitrile compounds of use in the synthesis of adiponitrile, an important chemical intermediate in the manufacture of major chemical compounds, such as hexamethylenediamine and ?-caprolactam. The invention provides a process for the manufacture of organic compounds comprising at least one nitrile functional group by carrying out a hydrocyanation reaction between hydrogen cyanide and an organic compound comprising at least one ethylenic unsaturation. This reaction is carried out in the presence of a catalytic system comprising a metal element chosen from the group consisting of nickel, platinum and palladium and an organophosphorus ligand, the reaction medium additionally comprising an ionic liquid in the liquid state at least at the temperature at which the hydrocyanation reaction is carried out.Type: GrantFiled: October 2, 2008Date of Patent: October 18, 2011Assignee: Rhodia Polyamide IntermediatesInventors: Jean-Marie Basset, Yves Chauvin, Jean-Christophe Galland, Gerald Niccolai, Christine Valerio, Christophe Vallee
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Patent number: 7884225Abstract: The present invention relates to a process for the preparation of 3-chloropropyldimethylchlorosilane by hydrosilylation reaction in a reaction medium comprising dimethylhydrochlorosilane and allyl chloride, in the presence of a catalytically effective amount of di-?-chlorobis(?-1,5-cyclooctadiene)diiridium, the said process being characterized in that at least one auxiliary in the free or supported state selected from the group of compounds consisting of: (i) ketones, (ii) ethers, (iii) quinones, (iv) anhydrides, (v) unsaturated hydrocarbon compounds (UHC) having an aromatic nature and/or comprising at least one C?C double bond and/or at least one C?C triple bond, it being possible for these unsaturated bonds to be conjugated or nonconjugated, the said UHCs being linear or cyclic (mono- or polycyclic), having from 4 to 30 carbon atoms, having from 1 to 8 ethylenic and/or acetylenic unsaturations and optionally comprising one or more heteroatoms, (vi) and their mixtures, is added to the reaction medium, wiType: GrantFiled: July 16, 2008Date of Patent: February 8, 2011Assignee: Rhodia ChimieInventors: Nathalie Guennouni, Jean-Christophe Galland
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Publication number: 20090247780Abstract: The present invention relates to the manufacture of nitrile compounds from unsaturated organic compounds by reaction with hydrogen cyanide. It relates more particularly to the manufacture of nitrile compounds of use in the synthesis of adiponitrile, an important chemical intermediate in the manufacture of major chemical compounds, such as hexamethylenediamine and ?-caprolactam. The invention provides a process for the manufacture of organic compounds comprising at least one nitrile functional group by carrying out a hydrocyanation reaction between hydrogen cyanide and an organic compound comprising at least one ethylenic unsaturation. This reaction is carried out in the presence of a catalytic system comprising a metal element chosen from the group consisting of nickel, platinum and palladium and an organophosphorus ligand, the reaction medium additionally comprising an ionic liquid in the liquid state at least at the temperature at which the hydrocyanation reaction is carried out.Type: ApplicationFiled: October 2, 2008Publication date: October 1, 2009Applicant: RHODIA POLYAMIDE INTERMEDIATESInventors: Jean-Marie BASSET, Yves Chauvin, Jean-Christophe Galland, Gerald Niccolai, Christine Valerio, Christophe Vallee
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Patent number: 7531682Abstract: The present invention concerns a process for hydrocyanating ethylenically unsaturated organic compounds to compounds containing at least one nitrile function. It relates more particularly to the hydrocyanation of diolefins such as butadiene or of substituted olefins such as alkenenitriles, for instance pentenenitriles. According to the process of the invention the reaction is implemented in the presence of a metal complex catalyst comprising a transition metal such as nickel and an organic ligand.Type: GrantFiled: July 11, 2003Date of Patent: May 12, 2009Assignee: Rhodia Polyamide IntermediatesInventors: Jean-Christophe Galland, Blaise Didillon, Philippe Marion, Damien Bourgeois
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Patent number: 7485741Abstract: The present invention relates to a process for hydrocyanating a hydrocarbon-based compound containing at least one ethylenic unsaturation by reaction in liquid medium with hydrogen cyanide in the presence of a catalyst comprising a metal element chosen from transition metals and an organophosphorus ligand, characterized in that the organophosphorus ligand is a monodentate organophosphorus compound. The present invention is in particular useful for the synthesis of adiponitrile from butadiene.Type: GrantFiled: November 25, 2003Date of Patent: February 3, 2009Assignee: Rhodia Polyamide IntermediatesInventors: Damien Bourgeois, Jean-Christophe Galland, Blaise Didillon, Philippe Marion
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Patent number: 7442825Abstract: The present invention concerns a process for hydrocyanating ethylenically unsaturated organic compounds to compounds containing at least one nitrile function. It relates more particularly to the hydrocyanation of diolefins such as butadiene or of substituted olefins such as alkenenitriles, for instance pentenenitriles. According to the process of the invention the reaction is implemented in the presence of a metal complex catalyst comprising a transition metal such as nickel and an organic ligand.Type: GrantFiled: July 11, 2003Date of Patent: October 28, 2008Assignee: Rhodia Polyamide IntermediatesInventors: Jean-Christophe Galland, Blaise Didillon, Philippe Marion, Damien Bourgeois
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Patent number: 7253298Abstract: The present invention concerns a process for hydrocyanating ethylenically unsaturated organic compounds to compounds containing at least one nitrile function. It relates more particularly to the hydrocyanation of diolefins such as butadiene or of substituted olefins such as alkenenitriles, for instance pentenenitriles. According to the process of the invention the reaction is implemented in the presence of a metal complex catalyst comprising a transition metal such as nickel and an organic ligand.Type: GrantFiled: June 24, 2005Date of Patent: August 7, 2007Assignee: Rhodia Polyamide IntermediatesInventors: Jean-Christophe Galland, Blaise Didillon, Philippe Marion, Damien Bourgeois
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Patent number: 7105696Abstract: The invention concerns a method for hydrocyanation of ethylenically unsaturated organic compounds comprising at least a nitrile function. The invention provides a method for hydrocyanation of an ethylenically unsaturated hydrocarbon compound by reacting in liquid medium the hydrogen cyanide in the presence of a catalyst comprising a metal element selected among transition metals and an organophosphorous ligand, characterised in that the organophosphorous ligand is a furylphosphine. The invention is in particular useful for synthesizing adiponitrile from butadiene.Type: GrantFiled: December 21, 2001Date of Patent: September 12, 2006Assignee: Rhodia Polymide IntermediatesInventors: Paolo Burattin, Alex Chamard, Jean-Christophe Galland
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Patent number: 7098358Abstract: The invention concerns a method for hydrocyanation of ethylenically unsaturated organic compounds into compounds comprising at least a nitrile function. More particularly, it concerns a method for hydrocyanation of organic compounds comprising at least a ethylenical bond by reacting hydrogen cyanide, in the presence of a catalytic system comprising a transition metal and an organophosphorus ligand. The organophosphorus ligand is a compound with monophosphanorbornadiene structure. The invention concerns in particular hydrocyanation of butadiene into adiponitrile.Type: GrantFiled: October 3, 2001Date of Patent: August 29, 2006Assignee: Rhodia Polyamides IntermediatesInventors: Paolo Burattin, Jean-Christophe Galland, Alex Chamard
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Publication number: 20060128980Abstract: The present invention concerns a process for hydrocyanating ethylenically unsaturated organic compounds to compounds containing at least one nitrile function. It relates more particularly to the hydrocyanation of diolefins such as butadiene or of substituted olefins such as alkenenitriles, for instance pentenenitriles. According to the process of the invention the reaction is implemented in the presence of a metal complex catalyst comprising a transition metal such as nickel and an organic ligand.Type: ApplicationFiled: July 11, 2003Publication date: June 15, 2006Inventors: Jean-Christophe Galland, Blaise Didillon, Philippe Marion, Damien Bourgeois
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Publication number: 20060100455Abstract: The present invention concerns a process for hydrocyanating ethylenically unsaturated organic compounds to compounds containing at least one nitrile function. It relates more particularly to the hydrocyanation of diolefins such as butadiene or of substituted olefins such as alkenenitriles, for instance pentenenitriles. According to the process of the invention the reaction is implemented in the presence of a metal complex catalyst comprising a transition metal such as nickel and an organic ligand.Type: ApplicationFiled: June 24, 2005Publication date: May 11, 2006Inventors: Jean-Christophe Galland, Blaise Didillon, Philippe Marion, Damien Bourgeois
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Publication number: 20060052624Abstract: The present invention concerns a process for hydrocyanating ethylenically unsaturated organic compounds to compounds containing at least one nitrile function. It relates more particularly to the hydrocyanation of diolefins such as butadiene or of substituted olefins such as alkenenitriles, for instance pentenenitriles. According to the process of the invention the reaction is implemented in the presence of a metal complex catalyst comprising a transition metal such as nickel and an organic ligand.Type: ApplicationFiled: July 11, 2003Publication date: March 9, 2006Inventors: Jean-Christophe Galland, Blaise Didillon, Philippe Marion, Damien Buorgeois
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Patent number: 6939976Abstract: A process for the production of allyl succinic anhydride comprising reacting a mixture of propene with maleic anhydride in the presence of a catalyst comprised of an alkyl tin chloride as provided. The process can be run efficiently at temperatures below about 200° C. without and the formation of polymer or decomposition by-products.Type: GrantFiled: April 9, 2004Date of Patent: September 6, 2005Assignee: Rhodia Inc.Inventors: Euen Gunn, Jean-Christophe Galland, Blaise Didillon, Thomas Delacroix
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Publication number: 20040260112Abstract: The present invention relates to the manufacture of nitrile compounds from unsaturated organic compounds by reaction with hydrogen cyanide. It relates more particularly to the manufacture of nitrile compounds of use in the synthesis of adiponitrile, an important chemical intermediate in the manufacture of major chemical compounds, such as hexamethylenediamine and &egr;-caprolactam. The invention provides a process for the manufacture of organic compounds comprising at least one nitrile functional group by carrying out a hydrocyanation reaction between hydrogen cyanide and an organic compound comprising at least one ethylenic unsaturation. This reaction is carried out in the presence of a catalytic system comprising a metal element chosen from the group consisting of nickel, platinum and palladium and an organophosphorus ligand, the reaction medium additionally comprising an ionic liquid in the liquid state at least at the temperature at which the hydrocyanation reaction is carried out.Type: ApplicationFiled: August 18, 2004Publication date: December 23, 2004Inventors: Jean-Marie Basset, Yves Chauvin, Jean-Christophe Galland, Gerald Niccolai, Christine Valerio, Christophe Vallee
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Publication number: 20040220414Abstract: A process for the production of allyl succinic anhydride comprising reacting a mixture of propene with maleic anhydride in the presence of a catalyst comprised of an alkyl tin chloride as provided. The process can be run efficiently at temperatures below about 200° C. without and the formation of polymer or decomposition by-products.Type: ApplicationFiled: April 9, 2004Publication date: November 4, 2004Inventors: Euen Gunn, Jean-Christophe Galland, Blaise Didillon, Thomas Delacroix
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Publication number: 20040063991Abstract: The invention concerns a method for hydrocyanation of ethylenically unsaturated organic compounds comprising at least a nitrile function. The invention provides a method for hydrocyanation of an ethylenically unsaturated hydrocarbon compound by reacting in liquid medium the hydrogen cyanide in the presence of a catalyst comprising a metal element selected among transition metals and an organophosphorous ligand, characterised in that the organophosphorous ligand is a furylphosphine. The invention is in particular useful for synthesizing adiponitrile from butadiene.Type: ApplicationFiled: November 6, 2003Publication date: April 1, 2004Inventors: Paolo Burattin, Alex Chamard, Jean-Christophe Galland
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Publication number: 20040063956Abstract: The invention concerns a method for hydrocyanation of ethylenically unsaturated organic compounds into compounds comprising at least a nitrile function. More particularly, it concerns a method for hydrocyanation of organic compounds comprising at least a ethylenical bond by reacting hydrogen cyanide, in the presence of a catalytic system comprising a transition metal and an organophosphorus ligand. The organophosphorus ligand is a compound with monophosphanorbornadiene structure. The invention concerns in particular hydrocyanation of butadiene into adiponitrile.Type: ApplicationFiled: September 24, 2003Publication date: April 1, 2004Inventors: Paolo Burattin, Jean-Christophe Galland, Alex Chamard