Patents by Inventor Jean-Christophe Castaing

Jean-Christophe Castaing 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).

  • Patent number: 9301454
    Abstract: A peat moss composition having improved water holding capacity, hydrophilicity, and/or anti-leaching properties comprising one or more polysaccharides, for example guars and/or guar derivatives, is disclosed. A method of preparing the peat moss composition and a method of using it are also disclosed.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: April 5, 2016
    Assignee: RHODIA OPERATIONS
    Inventors: Zhiyun Chen, Jean-Christophe Castaing
  • Patent number: 9096793
    Abstract: The present invention relates to methods of improving germination rates of plants or crops, and of preventing or arresting water evaporation loss from targeted soil areas by use of soil additives, which allow for improved water utilization by crops, plants, grasses, vegetation, etc.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: August 4, 2015
    Assignee: RHODIA (CHINA) CO. LTD.
    Inventors: Galder Cristobal, Pascal Metivier, Jean-Christophe Castaing, Pengfei Ji, Zhiyun Chen
  • Patent number: 9038311
    Abstract: A composition comprising peat moss and one or more alkoxylates selected from the group consisting of alcohol alkoxylates and alkylphenol alkoxylates and, optionally, one or more polysaccharides, for example guars and/or guar derivatives. A synergistic effect of a combination of the alkoxylates and the polysaccharides was discovered. A method of preparing the peat moss composition and a method of using it are also disclosed.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: May 26, 2015
    Assignee: RHODIA OPERATIONS
    Inventors: Zhiyun Chen, Jean-Christophe Castaing, Krish Shanmuga
  • Patent number: 8993506
    Abstract: A hydrophilized article includes (a) a substrate having a hydrophobic surface, and (b) a hydrophilizing layer disposed on at least a portion of the hydrophobic surface of the substrate. said layer comprising an organophosphorus material or a vinyl alcohol material, or a mixture of an organophosphorus material and a vinyl alcohol material.
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: March 31, 2015
    Assignee: Rhodia Operations
    Inventors: Tobias Johannes Fütterer, Robert Lee Reierson, Jean-Christophe Castaing
  • Publication number: 20150056022
    Abstract: Disclosed are soil additives capable of hydrophilizing soil particles and/or increase available water capacity in soil. The soil additive are capable of increasing the available water content/capacity (AWC) in soils, the additive in one embodiment comprising a polymer composition having a hydrophilic portion and a hydrophobic portion, wherein the hydrophobic portion of the copolymer binds with the soil particle surface and the hydrophilic portion of the copolymer can bind with water. This results in the prevention, arrest or decelerated loss of water from the targeted area, for example the plant root zone, which allows for improved water usage efficiency by plants, grasses, vegetation, etc.
    Type: Application
    Filed: October 22, 2014
    Publication date: February 26, 2015
    Applicant: RHODIA OPERATIONS
    Inventors: Zhiyun CHEN, Jean-Christophe CASTAING, Marie-Pierre LABEAU
  • Patent number: 8946306
    Abstract: The invention relates to process for the treatment of a hydrophobic surface by a liquid film comprising an aqueous phase comprising the coating of said surface by the liquid whose aqueous phase comprises an effective amount of an agent of modification of the properties of surface and an active agent.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: February 3, 2015
    Assignee: Rhodia Operations
    Inventors: Jean-Christophe Castaing, Ashwin Rao
  • Patent number: 8895686
    Abstract: Disclosed are soil additives capable of hydrophilizing soil particles and/or increase available water capacity in soil. The soil additive are capable of increasing the available water content/capacity (AWC) in soils, the additive in one embodiment comprising a polymer composition having a hydrophilic portion and a hydrophobic portion, wherein the hydrophobic portion of the copolymer binds with the soil particle surface and the hydrophilic portion of the copolymer can bind with water. This results in the prevention, arrest or decelerated loss of water from the targeted area, for example the plant root zone, which allows for improved water usage efficiency by plants, grasses, vegetation, etc.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: November 25, 2014
    Assignee: Rhodia Operations
    Inventors: Zhiyun Chen, Jean-Christophe Castaing, Marie-Pierre Labeau
  • Patent number: 8784681
    Abstract: Disclosed are soil additives comprised of self-situating, stimuli-responsive polymer compositions and methods of their use. In one embodiment, the polymer composition or polymer network comprises permanent cross-links and non-permanent cross-links, wherein the non-permanent cross-links are capable of being removed upon application or exposure to a stimulus, typically located within the soil. In another embodiment, the method of increasing water retention in soils includes applying a soil additive, comprising polymer networks of the present invention admixed with an aqueous solution to form a colloidal dispersion solution or suspension, to a soil surface. The suspension or colloidal dispersion solution facilitates penetration of the polymer composition through the soil surface and into the soil, migrating typically to lower water potential areas and, more typically, along drainage channels located within the soil.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: July 22, 2014
    Assignee: Rhodia Operations
    Inventors: Zhiyun Chen, Jean-Christophe Castaing, Marie-Pierre Labeau, Gilda Lizarraga
  • Publication number: 20140173980
    Abstract: Disclosed are methods and devices that can improve water usage by plants and grasses by, for example, inducing preferential root tropism and assisting in redistributing water within the soil.
    Type: Application
    Filed: December 20, 2013
    Publication date: June 26, 2014
    Applicants: CENTRE NATIONALE DE LA RECHERCHE SCIENTIFIQUE, RHODIA OPERATIONS
    Inventors: Cesare CEJAS, Remi DREYFUS, Lawrence HOUGH, Jean-Christophe CASTAING
  • Publication number: 20140069158
    Abstract: A composition comprising peat moss and one or more alkoxylates selected from the group consisting of alcohol alkoxylates and alkylphenol alkoxylates and, optionally, one or more polysaccharides, for example guars and/or guar derivatives. A synergistic effect of a combination of the alkoxylates and the polysaccharides was discovered. A method of preparing the peat moss composition and a method of using it are also disclosed.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 13, 2014
    Applicant: RHODIA OPERATIONS
    Inventors: Zhiyun CHEN, Jean-Christophe CASTAING, Krish SHANMUGA
  • Patent number: 8584513
    Abstract: Disclosed are methods of determining the effectiveness of an asphaltene deposition inhibitor in oilfield applications. Such methods typically comprising the steps of introducing an oil well fluid into a microfluidic/millifluidic system; introducing a mixture of an asphaltene deposition inhibitor and carrier into the microfluidic/millifluidic system; introducing a precipitating agent, typically comprising heptane, into the microfluidic/millifluidic system; and optionally introducing toluene into the microfluidic/millifluidic system; then observing the presence or absence of asphaltene aggregation within the microfluidic/millifluidic system.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: November 19, 2013
    Assignee: Rhodia Operations
    Inventors: Lawrence A. Hough, Jean-Christophe Castaing, Gary Woodward, Ruela Talingting Pabalan, Floryan De Campo
  • Patent number: 8475869
    Abstract: 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: Grant
    Filed: April 1, 2011
    Date of Patent: July 2, 2013
    Assignees: Rhodia Operations, Centre National de la Recherche Scientifique—CNRS, The Trustees of The University of Pennsylvania
    Inventors: Chantal Badre, Jean-Paul Chapel, Shu Yang, Jean-Christophe Castaing
  • Publication number: 20130145687
    Abstract: The present invention relates to methods of improving germination rates of plants or crops, and of preventing or arresting water evaporation loss from targeted soil areas by use of soil additives, which allow for improved water utilization by crops, plants, grasses, vegetation, etc.
    Type: Application
    Filed: April 26, 2011
    Publication date: June 13, 2013
    Applicant: RHODIA (CHINA) CO LTD
    Inventors: Galder Cristobal, Pascal Metivier, Jean-Christophe Castaing, Pengfei Ji, Zhiyun Chen
  • Publication number: 20130101854
    Abstract: The invention relates to process for the treatment of a hydrophobic surface by a liquid film comprising an aqueous phase comprising the coating of said surface by the liquid whose aqueous phase comprises an effective amount of an agent of modification of the properties of surface and an active agent.
    Type: Application
    Filed: June 28, 2012
    Publication date: April 25, 2013
    Applicant: Rhodia Operations
    Inventors: Jean Christophe CASTAING, Ashwin Rao
  • Publication number: 20130036668
    Abstract: A peat moss composition having improved water holding capacity, hydrophilicity, and/or anti-leaching properties comprising one or more polysaccharides, for example guars and/or guar derivatives, is disclosed. A method of preparing the peat moss composition and a method of using it are also disclosed.
    Type: Application
    Filed: August 8, 2012
    Publication date: February 14, 2013
    Applicant: Rhodia Operations
    Inventors: Zhiyun CHEN, Jean-Christophe CASTAING
  • Publication number: 20120252073
    Abstract: A method of decomposing stubble, which is crop residue left on the ground, and a composition for treating the stubble are disclosed. The method comprises treating the stubble with the composition comprising a) polysaccharide-degrading enzyme; b) wetting agent; and, optionally, c) water and allowing the treated stubble to remain on the ground and decompose.
    Type: Application
    Filed: March 28, 2012
    Publication date: October 4, 2012
    Applicant: RHODIA OPERATIONS
    Inventors: Jean-Christophe Castaing, Gary Groves, Ashwin Rao, Thomas E. Ruch
  • Patent number: 8263218
    Abstract: 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: Grant
    Filed: September 26, 2008
    Date of Patent: September 11, 2012
    Assignees: Rhodia Inc., Centre National de la Recherche Scientifique
    Inventors: Jean-Paul Chapel, Jean-Christophe Castaing, Ling Qi
  • Publication number: 20120220454
    Abstract: Coating compositions and methods of use, allowing for improved water and/or nutrient usage by seeds, plants, shrubs, and vegetation, among others, are disclosed.
    Type: Application
    Filed: February 28, 2012
    Publication date: August 30, 2012
    Applicant: RHODIA OPERATIONS
    Inventors: Zhiyun Chen, Jean-Christophe Castaing, PengFei JI, Galder Cristobal
  • Patent number: 8222304
    Abstract: The invention relates to process for the treatment of a hydrophobic surface by a liquid film comprising an aqueous phase comprising the coating of said surface by the liquid whose aqueous phase comprises an effective amount of surface properties modifying agent and an active agent.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: July 17, 2012
    Assignee: Rhodia Operations
    Inventors: Jean-Christophe Castaing, Ashwin Rao
  • Patent number: 8062555
    Abstract: 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: Grant
    Filed: April 16, 2009
    Date of Patent: November 22, 2011
    Assignee: Rhodia Operations
    Inventors: Jérôme Fresnais, Jean-Francois Berret, Ling Qi, Jean-Paul Chapel, Jean-Christophe Castaing