Patents by Inventor Jean-Paul Chapel
Jean-Paul Chapel 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: 20200030750Abstract: Disclosed is a process for manufacturing a membrane from a, amphiphilic block copolymer including a hydrophilic block and a hydrophobic block including functions capable of forming a bond with the hydrophilic block in a bath containing the copolymer in solution in an apolar organic solvent, for a sufficient time to enable the formation of non-covalent bonds between the hydrophilic block and the support and the immobilisation of a first layer of the copolymer on the surface of the support; followed by adding water to the bath, so as to give rise to the self-assembly of a second layer of copolymer on the first layer.Type: ApplicationFiled: January 3, 2018Publication date: January 30, 2020Inventors: Jean-Paul CHAPEL, Christophe SCHATZ
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Patent number: 8512863Abstract: The present invention is directed to a process for the preparation of an aqueous dispersion of coacervates having a core-shell structure, the core (a) being an inorganic particle being anionic or cationic and the shell (b) being a copolymer wherein said copolymer comprises at least two parts, A and B, part A being cationic if particle (a) is anionic, and anionic if particle (a) is cationic, and part B being neutral in pH conditions of said dispersion. More particularly, the invention is directed to treating compositions comprising that aqueous dispersion of coacervates delivering antifouling, water sheeting, antisoiling, anti-adhesion, adhesion, anti-deposition, and/or anti-UV properties onto all kinds of surfaces.Type: GrantFiled: July 11, 2007Date of Patent: August 20, 2013Assignees: Rhodia Inc., Centre Nationale de la Recherche ScientifiqueInventors: Jean-Paul Chapel, Mikel Morvan, Ling Qi
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Patent number: 8475869Abstract: Disclosed are methods and systems for transferring dry or semi-dry nanoparticles onto a substrate. In one embodiment, this includes the steps of providing a roller comprising an elastomeric stamp; transferring nanoparticles in a dry or semi-dry state, and which contact the surface of a donor substrate, from the donor substrate onto the elastomeric stamp; and depositing the dry or semi-dry nanoparticles from the elastomeric stamp onto a receiver substrate by rolling the elastomeric stamp onto the receiver substrate. The substrate, in other embodiments, can have a relief structure.Type: GrantFiled: April 1, 2011Date of Patent: July 2, 2013Assignees: Rhodia Operations, Centre National de la Recherche Scientifique—CNRS, The Trustees of The University of PennsylvaniaInventors: Chantal Badre, Jean-Paul Chapel, Shu Yang, Jean-Christophe Castaing
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Publication number: 20130071569Abstract: A method of forming a pattern on the surface made of a hydrophobic macromolecular material of a substrate is provided, the method having a step of immersing at least said surface of the substrate in a solution that having at least 50% by volume of water and, optionally, one or more polar solvents having a dielectric constant greater than 30 and contains less than 0.0001 mol/L of dissolved gases and on source. The invention is particularly applicable in the electronics field.Type: ApplicationFiled: March 15, 2011Publication date: March 21, 2013Applicant: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Igor Siretanu, Jean-Paul Chapel, Carlos Drummond
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Patent number: 8263218Abstract: A surface modified substrate includes a substrate having a surface, a layer of nanoscale inorganic oxide particles disposed on at least a portion of the surface of the substrate, said layer of nanoscale inorganic oxide particles comprising sites bearing an electric charge of a first polarity, and a monolayer of a polymer disposed on a least a portion of the layer of nanoscale inorganic oxide particles, said monolayer of polymer comprising sites bearing an electric charge of a second polarity, wherein the second polarity is the opposite of the first polarity.Type: GrantFiled: September 26, 2008Date of Patent: September 11, 2012Assignees: Rhodia Inc., Centre National de la Recherche ScientifiqueInventors: Jean-Paul Chapel, Jean-Christophe Castaing, Ling Qi
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Patent number: 8062555Abstract: A co-assembly method includes, in an aqueous polyelectrolyte composition comprising: (a) a first polyelectrolyte dispersed in the composition and having a net electric charge of a first polarity, (b) a second polyelectrolyte dispersed in the composition and having a net electric charge of a second polarity, wherein the second polarity is opposite the first polarity, and (c) an electrolyte dissolved in the composition in a concentration effective to prevent co-assembly of the polyelectrolytes, the step of allowing co-assembly of the polyelectrolytes by: (1) decreasing the concentration of the electrolyte, or (2) forming an interface between the aqueous polyelectrolyte composition and a surface of a solid substrate or of a second liquid phase, wherein the surface has an affinity for at least one of the polyelectrolytes, or (3) decreasing the concentration of the electrolyte and forming such an interface.Type: GrantFiled: April 16, 2009Date of Patent: November 22, 2011Assignee: Rhodia OperationsInventors: Jérôme Fresnais, Jean-Francois Berret, Ling Qi, Jean-Paul Chapel, Jean-Christophe Castaing
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Patent number: 8048525Abstract: An adsorption method includes the step of adsorbing hybrid particles from a colloidal dispersion of such particles at an interface between the dispersion and a second phase, said hybrid particles comprising: (a) a nanoscale inorganic core having an outer surface, and (b) an organic layer disposed on at least a portion of the surface of the inorganic core and comprising one or more phosphonates according to structure (I): wherein: R1 and R2 are each independently H, or a (C1-C20)hydrocarbon group, R3 is a divalent (C1-C20)hydrocarbon group, R4 and R5 are each independently H or (C1-C2)alkyl, provided that R4 differs from R5, R6 is H or a (C1-C30)hydrocarbon group, m and n are each independently integers of from 0 to about 200, provided that the sum of m+n is at least 1.Type: GrantFiled: May 8, 2009Date of Patent: November 1, 2011Assignees: Rhodia, Inc., Centre Nationale de la Recherche ScientifiqueInventors: Jean-Paul Chapel, Jean-Christophe Castaing, Jérôme Fresnais, Jean-Francois Berret, Ling Qi
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Publication number: 20110244116Abstract: Disclosed are methods and systems for transferring dry or semi-dry nanoparticles onto a substrate. In one embodiment, this includes the steps of providing a roller comprising an elastomeric stamp; transferring nanoparticles in a dry or semi-dry state, and which contact the surface of a donor substrate, from the donor substrate onto the elastomeric stamp; and depositing the dry or semi-dry nanoparticles from the elastomeric stamp onto a receiver substrate by rolling the elastomeric stamp onto the receiver substrate. The substrate, in other embodiments, can have a relief structure.Type: ApplicationFiled: April 1, 2011Publication date: October 6, 2011Applicants: Rhodia Operations, The Trustees of the University of PennsylvaniaInventors: Chantal BADRE, Jean-Paul Chapel, Shu Yang, Jean-Christophe Castaing
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Publication number: 20110117286Abstract: A surface modified substrate includes a substrate having a surface and a layer of nanoscale inorganic oxide particles disposed on at least a portion of the surface.Type: ApplicationFiled: November 19, 2010Publication date: May 19, 2011Applicant: RHODIA INC.Inventors: Jean-Paul CHAPEL, Ashwin Rao, Zhengang Zong
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Publication number: 20100264375Abstract: A co-assembly method includes, in an aqueous polyelectrolyte composition comprising: (a) a first polyelectrolyte dispersed in the composition and having a net electric charge of a first polarity, (b)a second polyelectrolyte dispersed in the composition and having a net electric charge of a second polarity, wherein the second polarity is opposite the first polarity, and (c)an electrolyte dissolved in the composition in a concentration effective to prevent co-assembly of the polyelectrolytes, the step of allowing co-assembly of the polyelectrolytes by: (1) decreasing the concentration of the electrolyte, or (2) forming an interface between the aqueous polyelectrolyte composition and a surface of a solid substrate or of a second liquid phase, wherein the surface has an affinity for at least one of the polyelectrolytes, or (3) decreasing the concentration of the electrolyte and forming such an interface.Type: ApplicationFiled: April 16, 2009Publication date: October 21, 2010Applicant: RHODIA INC.Inventors: Jerome Fresnais, Jean-Francois Berret, Ling Qi, Jean-Paul Chapel, Jean-Christophe Castaing
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Publication number: 20100009209Abstract: A surface modified substrate includes a substrate having a surface, a layer of nanoscale inorganic oxide particles disposed on at least a portion of the surface of the substrate, said layer of nanoscale inorganic oxide particles comprising sites bearing an electric charge of a first polarity, and a monolayer of a polymer disposed on a least a portion of the layer of nanoscale inorganic oxide particles, said monolayer of polymer comprising sites bearing an electric charge of a second polarity, wherein the second polarity is the opposite of the first polarity.Type: ApplicationFiled: September 26, 2008Publication date: January 14, 2010Inventors: Jean-Paul Chapel, Jean-Christophe Castaing, Ling Qi
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Publication number: 20090283711Abstract: An adsorption method includes the step of adsorbing hybrid particles from a colloidal dispersion of such particles at an interface between the dispersion and a second phase, said hybrid particles comprising: (a) a nanoscale inorganic core having an outer surface, and (b) an organic layer disposed on at least a portion of the surface of the inorganic core and comprising one or more phosphonates according to structure (I): wherein: R1 and R2 are each independently H, or a (C1-C20)hydrocarbon group, R3 is a divalent (C1-C20)hydrocarbon group, R4 and R5 are each independently H or (C1-C2)alkyl, provided that R4 differs from R5, R6 is H or a (C1-C30)hydrocarbon group, m and n are each independently integers of from 0 to about 200, provided that the sum of m+n is at least 1.Type: ApplicationFiled: May 8, 2009Publication date: November 19, 2009Applicants: RHODIA INC., CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Jean-Paul Chapel, Jean-Christophe Castaing, Jerome Fresnais, Jean-Francois Berret, Ling Qi
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Publication number: 20080248209Abstract: The present invention is directed to a process for the preparation of an aqueous dispersion of coacervates having a core-shell structure, the core (a) being an inorganic particle being anionic or cationic and the shell (b) being a copolymer wherein said copolymer comprises at least two parts, A and B, part A being cationic if particle (a) is anionic, and anionic if particle (a) is cationic, and part B being neutral in pH conditions of said dispersion. More particularly, the invention is directed to treating compositions comprising that aqueous dispersion of coacervates delivering antifouling, water sheeting, antisoiling, anti-adhesion, adhesion, anti-deposition, and/or anti-UV properties onto all kinds of surfaces.Type: ApplicationFiled: July 11, 2007Publication date: October 9, 2008Inventors: Jean Paul Chapel, Mikel Morvan, Ling Qi
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Publication number: 20080124467Abstract: A surface modified substrate includes a substrate having a surface and a layer of nanoscale inorganic oxide particles disposed on at least a portion of the surface.Type: ApplicationFiled: March 28, 2007Publication date: May 29, 2008Inventors: Jean-Paul Chapel, Ashwin Rao, Zhengang Zong