Patents by Inventor Jean-Marie Raquez
Jean-Marie Raquez 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: 11370896Abstract: An ionic nanocomposite comprising a nanomaterial comprising charged groups disposed on at least a portion of a surface of the nanomaterial and a polymer material comprising charged pendant group and/or end functionalized charged groups, where the charged groups of the nanomaterial and the charged pendant groups of the polymer material have opposite charges and the nanomaterial and polymer material are connected by one or more ionic bonds. A nanomaterial can be nanoparticles comprising sulfate groups disposed on at least a portion of the surface of the nanoparticles. The polymer material can be a polymer with pendant imidazolium groups. An ionic nanocomposite can be present as a film (e.g., a thin film). An ionic nanocomposite can be used in devices. A nanocomposite can be used in various coating application.Type: GrantFiled: September 12, 2017Date of Patent: June 28, 2022Assignees: CORNELL UNIVERSITY, UNIVERSITÉ DE MONSInventors: Jérémy Odent, Emmanuel P. Giannelis, Jean-Marie Raquez, Philippe Dubois
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Publication number: 20190233613Abstract: An ionic nanocomposite comprising a nanomaterial comprising charged groups disposed on at least a portion of a surface of the nanomaterial and a polymer material comprising charged pendant group and/or end functionalized charged groups, where the charged groups of the nanomaterial and the charged pendant groups of the polymer material have opposite charges and the nanomaterial and polymer material are connected by one or more ionic bonds. A nanomaterial can be nanoparticles comprising sulfate groups disposed on at least a portion of the surface of the nanoparticles. The polymer material can be a polymer with pendant imidazolium groups. An ionic nanocomposite can be present as a film (e.g., a thin film). An ionic nanocomposite can be used in devices. A nanocomposite can be used in various coating application.Type: ApplicationFiled: September 12, 2017Publication date: August 1, 2019Inventors: Jérémy ODENT, Emmanuel P. GIANNELIS, Jean-Marie RAQUEZ, Philippe DUBOIS
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Patent number: 9249253Abstract: The process of obtaining a polylactide-urethane copolymer is described which includes contacting an ?, ? dihydroxyl polylactide prepolymer of general formula I wherein X is NH or O, R is an alkyl or an aryl group, n and n? are integer numbers which are substantially the same and are in the range from 20 to 140, with a diisocyanate compound of general formula II O?C?N—R?—N?C?O wherein R? is an alkyl or an aryl group and with an amine or an alcohol of general formula III R?X?]2 wherein R? is an alkyl or an aryl group and X? is NH2 or OH, and with the proviso that at least one of R or R? is an aryl group.Type: GrantFiled: September 27, 2007Date of Patent: February 2, 2016Assignee: FUTERRO S.A.Inventors: Philippe Dubois, Philippe Coszach, Gloria Vendrell, Philippe Degee, Michael Alexandre, Ibrahim Barakat, Jean Marie Raquez
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Patent number: 7985794Abstract: A starch-polyester graft copolymer and chemically modified starch-polyester graft copolymer composition comprising a chemically modified starch or chemically modified starch-nanoclay product is described. The composition can be produced continuously in a twin-screw co-rotating extruder. The starch-polyester graft copolymer can be solvent cast, melt cast and blown into clear transparent film particularly for use in single use disposable applications and can be biodegradable.Type: GrantFiled: December 7, 2009Date of Patent: July 26, 2011Assignee: Board of Trustees of Michigan State UniversityInventors: Ramani Narayan, Sunder Balakrishnan, Yogaraj Nabar, Jean-Marie Raquez, Philippe Dubois
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Publication number: 20110125108Abstract: A surgical needle has shape memory. An endoscope tool controls the temperature of a foreign body or surgical instrument such as an endoscopic needle.Type: ApplicationFiled: May 18, 2009Publication date: May 26, 2011Applicants: Universite Libre de Bruxelles, Universite de MonsInventors: Jacques Deviere, Alain Delchambre, Nicolas Cauche, Sonia Dugardeyn, Philippe Dubois, Jean-Marie Raquez
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Publication number: 20100120943Abstract: A starch-polyester graft copolymer and chemically modified starch-polyester graft copolymer composition comprising a chemically modified starch or chemically modified starch-nanoclay product is described. The composition can be produced continuously in a twin-screw co-rotating extruder. The starch-polyester graft copolymer can be solvent cast, melt cast and blown into clear transparent film particularly for use in single use disposable applications and can be biodegradable.Type: ApplicationFiled: December 7, 2009Publication date: May 13, 2010Applicant: Board of Trustees of Michigan State UniversityInventors: Ramani Narayan, Sunder Balakrishnan, Yogaraj Nabar, Jean-Marie Raquez, Philippe Dubois
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Publication number: 20100113734Abstract: A process for producing polylactide-urethane copolymers, which comprises the step of contacting a polylactide having terminal hydroxyl groups, produced by contacting at least one lactide monomer with a diol or diamine, with a diisocyanate compound optionally in the presence of a second diol or diamine in the presence of a catalytic system under polymerisation conditions characterised in that the polylactide and the polylactide-urethane copolymers are produced by reactive extrusion.Type: ApplicationFiled: September 27, 2007Publication date: May 6, 2010Applicants: TOTAL PETROCHEMICALS RESEARCH FELUY, FUTERRO S.A.Inventors: Philippe Dubois, Philippe Coszach, Gloria Vendrell, Fabrice Stassin, Caroline Jourdanne, Luc Lienard, Philippe Degee, Ibrahim Barakat, Michael Alexandre, Jean Marie Raquez
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Publication number: 20100016538Abstract: A polylactide-urethane copolymer obtainable by a process, which comprises the step of contacting: an ?, ? dihydroxyl polylactide prepolymer of general formula I wherein: X is NH or O, R is an alkyl or an aryl group, n and n? are integer numbers which are substantially the same and which are comprised in the range from 20 to 140, a diisocyanate compound of general formula II O?C?N—R?—N?C?O wherein: R? is an alkyl or an aryl group and an amine or an alcohol of general formula III R??[X?]2 wherein: R? is an alkyl or an aryl group and X? is NH2 or OH with the proviso that at least one of R or R? is an aryl groupType: ApplicationFiled: September 27, 2007Publication date: January 21, 2010Applicant: TOTAL PETROCHEMICALS RESEARCH FELUYInventors: Philippe Dubois, Philippe Coszach, gloria Vendrell, Philippe Degee, Michael Alexandre, Ibrahim Barakat, Jean Marie Raquez
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Patent number: 7629405Abstract: A starch-polyester graft copolymer and chemically modified starch-polyester graft copolymer composition comprising a chemically modified starch or chemically modified starch-nanoclay product is described. The composition can be produced continuously in a twin-screw co-rotating extruder. The starch-polyester graft copolymer can be solvent cast, melt cast and blown into clear transparent film particularly for use in single use disposable applications and can be biodegradable.Type: GrantFiled: November 19, 2004Date of Patent: December 8, 2009Assignee: Board of Trustees of Michigan State UniversityInventors: Ramani Narayan, Sunder Balakrishnan, Yogaraj Nabar, Jean-Marie Raquez, Philippe Dubois
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Patent number: 7361727Abstract: A polymerization process to derive a thermal-stabilized poly(1,4-dioxan-2-one) and cyclic ester monomer copolymer using a coordination-insertion catalyst/initiator. 1,4-dioxan-2-one and cyclic ester monomer, each containing less than 100-ppm water and having an acid value less than 0.5 mg KOH/g, and preferably less than 0.2 mg KOH/g, are copolymerized. Preferably the cyclic ester monomer is ?-caprolactone and the reaction is in an extruder.Type: GrantFiled: August 8, 2005Date of Patent: April 22, 2008Assignee: Board of Trustees of Michigan State UniversityInventors: Ramani Narayan, Jean-Marie Raquez, Sunder Balakrishnan, Philippe Dubois, Philippe Degee
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Publication number: 20070203261Abstract: High-performance inorganic filled thermoplastic polyester composites are provided, and the process for preparing thereof. Biodegradable inorganic filled thermoplastic polyester composites are provided by reactive melt-blending of biodegradable thermoplastic polyesters with inorganic fillers using a reactive extrusion processing.Type: ApplicationFiled: February 24, 2006Publication date: August 30, 2007Applicant: Board of Trustees of MICHIGAN STATE UNIVERSITYInventors: Ramani Narayan, Yogaraj Nabar, Jean-Marie Raquez, Philippe Dubois
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Patent number: 7153354Abstract: A chemically modified plasticized starch (CMPS) is prepared by reacting starch with an organic dibasic acid or an anhydride of the acid in the presence of a plasticizer using optional free radical initiators, and optionally with the incorporation of nano clays in the reactive extrusion process. The starch is thermoplastic and has a lower viscosity than the traditional thermoplastic starch. The CMPS is useful in preparing starch polymer compositions which are at least partially biodegradable.Type: GrantFiled: November 19, 2004Date of Patent: December 26, 2006Assignee: Board of Trustees of Michigan State UniversityInventors: Raamani Narayan, Sunder Balakrishnan, Yogaraj Nabar, Boo-Young Shin, Philippe Dubois, Jean-Marie Raquez
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Publication number: 20060107945Abstract: A chemically modified plasticized starch (CMPS) is prepared by reacting starch with an organic dibasic acid or an anhydride of the acid in the presence of a plasticizer using optional free radical initiators, and optionally with the incorporation of nano clays in the reactive extrusion process. The starch is thermoplastic and has a lower viscosity than the traditional thermoplastic starch. The CMPS is useful in preparing starch polymer compositions which are at least partially biodegradable.Type: ApplicationFiled: November 19, 2004Publication date: May 25, 2006Applicant: Board of Trustees of Michigan State UniversityInventors: Ramani Narayan, Sunder Balakrishnan, Yogaraj Nabar, Boo-Young Shin, Philippe Dubois, Jean-Marie Raquez
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Publication number: 20060111511Abstract: A starch-polyester graft copolymer and chemically modified starch-polyester graft copolymer composition comprising a chemically modified starch or chemically modified starch-nanoclay product is described. The composition can be produced continuously in a twin-screw co-rotating extruder. The starch-polyester graft copolymer can be solvent cast, melt cast and blown into clear transparent film particularly for use in single use disposable applications and can be biodegradable.Type: ApplicationFiled: November 19, 2004Publication date: May 25, 2006Applicant: Board of Trustees of Michigan State UniversityInventors: Ramani Narayan, Sunder Balakrishnan, Yogaraj Nabar, Jean-Marie Raquez, Philippe Dubois
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Publication number: 20060036060Abstract: A polymerization process to derive a thermal-stabilized poly(1,4-dioxan-2-one) and cyclic ester monomer copolymer using a coordination-insertion catalyst/initiator. 1,4-dioxan-2-one and cyclic ester monomer, each containing less than 100-ppm water and having an acid value less than 0.5 mg KOH/g, and preferably less than 0.2 mg KOH/g, are copolymerized. Preferably the cyclic ester monomer is ?-caprolactone and the reaction is in an extruder.Type: ApplicationFiled: August 8, 2005Publication date: February 16, 2006Applicant: Board of Trustees of Michigan State UniversityInventors: Ramani Narayan, Jean-Marie Raquez, Sunder Balakrishnan, Philippe Dubois, Philippe Degee