Patents by Inventor Bhima R. Vijayendran

Bhima R. Vijayendran 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: 10913864
    Abstract: In this invention, processes which can be used to achieve stable doped carbon nanotubes are disclosed. Preferred CNT structures and morphologies for achieving maximum doping effects are also described. Dopant formulations and methods for achieving doping of a broad distribution of tube types are also described.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: February 9, 2021
    Assignee: Battelle Memorial Institute
    Inventors: Amy M. Heintz, Steven Risser, Joel D. Elhard, Bryon P. Moore, Tao Liu, Bhima R. Vijayendran
  • Patent number: 10144638
    Abstract: A method is described for preparing carbon nanotube dispersions in organic solvents such as chloroform and methyl ethyl ketone. Structures resulting from organic dispersions are also disclosed. The dispersing agents used in this method comprise long chain hydrocarbons, halogen-substituted hydrocarbons, fluorocarbons, or a mixture of hydrocarbons, halogen-substituted hydrocarbons, and fluorocarbons; wherein the hydrocarbons, halogen-substituted hydrocarbons and fluorocarbons have from 6 to 40 carbons in a chain, at least one alkene or alkyne moiety, and at least one pendant carboxylic acid, phosphonic acid, and/or sulfonic acid group or an ester of these acids.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: December 4, 2018
    Assignee: Battelle Memorial Institute
    Inventors: Amy M. Heintz, Jeffrey Cafmeyer, Joel D. Elhard, Bhima R. Vijayendran
  • Patent number: 10059848
    Abstract: In this invention, processes which can be used to achieve stable doped carbon nanotubes are disclosed. Preferred CNT structures and morphologies for achieving maximum doping effects are also described. Dopant formulations and methods for achieving doping of a broad distribution of tube types are also described.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: August 28, 2018
    Assignee: Battelle Memorial Institute
    Inventors: Amy M. Heintz, Steven Risser, Joel D. Elhard, Bryon P. Moore, Tao Liu, Bhima R. Vijayendran
  • Publication number: 20170002212
    Abstract: In this invention, processes which can be used to achieve stable doped carbon nanotubes are disclosed. Preferred CNT structures and morphologies for achieving maximum doping effects are also described. Dopant formulations and methods for achieving doping of a broad distribution of tube types are also described.
    Type: Application
    Filed: September 15, 2016
    Publication date: January 5, 2017
    Inventors: Amy M. Heintz, Steven Risser, Joel D. Elhard, Bryon P. Moore, Tao Liu, Bhima R. Vijayendran
  • Publication number: 20160268014
    Abstract: In this invention, processes which can be used to achieve stable doped carbon nanotubes are disclosed. Preferred CNT structures and morphologies for achieving maximum doping effects are also described. Dopant formulations and methods for achieving doping of a broad distribution of tube types are also described.
    Type: Application
    Filed: May 23, 2016
    Publication date: September 15, 2016
    Inventors: Amy M. Heintz, Steven Risser, Joel D. Elhard, Bryon P. Moore, Tao Liu, Bhima R. Vijayendran
  • Patent number: 9365728
    Abstract: In this invention, processes which can be used to achieve stable doped carbon nanotubes are disclosed. Preferred CNT structures and morphologies for achieving maximum doping effects are also described. Dopant formulations and methods for achieving doping of a broad distribution of tube types are also described.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: June 14, 2016
    Assignee: Battelle Memorial Institute
    Inventors: Amy M. Heintz, Steven Risser, Joel D. Elhard, Bryon P. Moore, Tao Liu, Bhima R. Vijayendran
  • Patent number: 9126137
    Abstract: A polymer nanocomposite for separating a target gas from a second gas in a gas mixture includes: (a) a matrix formed from a modified polymer, and (b) nanoparticles incorporated in the matrix, the nanoparticles being functionalized to have a stable interaction with the matrix. The modified polymer has a backbone including (i) a polymer having a selectivity for the target gas over the second gas, and (ii) functional groups covalently linked to the polymer (i) as part of the backbone. The functional groups are capable of further increasing the selectivity of the modified polymer by interacting with the target gas and/or with the second gas.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: September 8, 2015
    Assignee: Battelle Memorial Institute
    Inventors: Bhima R. Vijayendran, Ramanathan S. Lalgudi
  • Patent number: 8686092
    Abstract: A series of resins were synthesized using a range of bio-based materials to control the molecular architecture, and therefore the properties, of the inventive resins. The utility of these resins was demonstrated in the formulation of powder coatings, such as ?-hydroxy amide crosslinked and hybrid types. Generally, the bio-based resins flowed out on heating faster than conventional petrochemically-based resins, allowing the use of lower temperatures in the curing oven than is typically possible and a more active catalyst system, especially in the carboxylic acid-epoxy crosslinked hybrid coating formulations.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: April 1, 2014
    Assignee: Battelle Memorial Institute
    Inventors: Bhima R. Vijayendran, Jerry L. King, II, Katherine P. Mitchell, Michael C. Clingerman, Jeffrey T. Cafmeyer
  • Patent number: 8603714
    Abstract: A series of resins were synthesized using a range of bio-based materials to control the molecular architecture, and therefore the properties, of the inventive resins. The resins were formulated into toner formulations such as those useful in printers and copiers.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: December 10, 2013
    Assignees: Battelle Memorial Institute, Advanced Image Resources, LLC
    Inventors: Bhima R. Vijayendran, Jerry L. King, II, Jeffrey Clark, Jan Bartus
  • Patent number: 8481184
    Abstract: This invention relates in general to components of electrochemical devices, and to methods of preparing the components. The components and methods include the use of a composition comprising an ionically conductive polymer and at least one solvent, where the polymer and the solvent are selected based on the thermodynamics of the combination. In one embodiment, the invention relates to a component for an electrochemical device which is prepared from a composition comprising a true solution of an ionically conductive polymer and at least one solvent, the polymer and the at least one solvent being selected such that |? solvent?? solute|<1, where ? solvent is the Hildebrand solubility parameter of the at least one solvent and where ? solute is the Hildebrand solubility parameter of the polymer.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: July 9, 2013
    Assignee: Battelle Memorial Institute
    Inventors: Jay R. Sayre, Megan E. Sesslar, James L. White, John R. Stickel, Mark C. Stasik, Bhima R. Vijayendran
  • Patent number: 8378010
    Abstract: A method of forming a stable latex polymer emulsion is provided which includes mixing one or more monomers including polymerizable acid monomers, esters, and unsaturated monomers with water and a soy protein. The emulsion is then polymerized and may be formed into adhesive compositions having improved water resistance and mechanical strength.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: February 19, 2013
    Assignee: Battelle Memorial Institute
    Inventors: James D. Browning, Bhima R. Vijayendran
  • Patent number: 8362195
    Abstract: An ionically conductive polymer has the chemical structure 1 as shown herein. Examples of the polymer include 4,4?-(4-(1H-benzo[d]imidazol-2-yl)butane-2,2-diyl)diphenol, sulfonated poly(aryl ether sulfone) containing benzimidazole backbone, sulfonated poly(aryl ether sulfone) containing carboxylic acid backbone, and sulfonated poly(aryl ether sulfone) containing benzimidazole backbone from carboxylic acid containing sulfonated poly(aryl ether sulfone). The polymer has intrinsic ion conducting properties so that it is effectively conductive even under low water conditions. In one embodiment, the polymer has an ionic conductivity of at least 1×10?5 S/cm at a temperature of 120° C. when the polymer is substantially anhydrous.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: January 29, 2013
    Inventors: Ramanathan S. Lalgudi, Jeffrey Boyce, Jay Sayre, Bhima R. Vijayendran
  • Patent number: 8357643
    Abstract: A lubricant from plant and/or animal oils and fats; methods for producing a lubricating oil, and the oil produced thereby. The lubricant is derived from an animal or plant fat or oil having an iodine number above about 7, and produced by epoxi-dising the fat or oil and (1) reacting the epoxidised fat or oil with a carboxylic acid anhydride in the presence of a basic catalyst to produce a diester, or (2) hydrogenating the epoxidised fat or oil to generate mono-alcohols and acylating the alcohol functionality with acid anhydrides, acid chlorides or carboxylic acids to produce a mono-ester.
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: January 22, 2013
    Assignee: Battelle Memorial Institute
    Inventors: Herman Benecke, Bhima R. Vijayendran, Jeffrey Cafmeyer
  • Publication number: 20120276470
    Abstract: This invention relates in general to components of electrochemical devices, and to methods of preparing the components. The components and methods include the use of a composition comprising an ionically conductive polymer and at least one solvent, where the polymer and the solvent are selected based on the thermodynamics of the combination. In one embodiment, the invention relates to a component for an electrochemical device which is prepared from a composition comprising a true solution of an ionically conductive polymer and at least one solvent, the polymer and the at least one solvent being selected such that |? solvent-? solute|<1, where ? solvent is the Hildebrand solubility parameter of the at least one solvent and where ? solute is the Hildebrand solubility parameter of the polymer.
    Type: Application
    Filed: February 24, 2012
    Publication date: November 1, 2012
    Applicant: BATTELLE MEMORIAL INSTITUTE
    Inventors: Jay R. Sayre, Megan E. Sesslar, James L. White, John R. Stickel, Mark C. Stasik, Bhima R. Vijayendran
  • Patent number: 8222367
    Abstract: A proton conducting hydrocarbon-based polymer has acid groups on side chains attached to the main chain, where the acid groups are between 7 and 12 atoms away from the main chain. Another polymer includes a semi-fluorinated aromatic hydrocarbon main chain and side chains that include at least one —CF2— group and an acid group. Another polymer includes an aromatic hydrocarbon main chain and side chains that include at least one —CH2-CF2— group and an acid group. Another aromatic polymer includes acid groups attached to both the main chain and the side chains where less than about 65 weight percent of the acid groups are attached to the side chains. Another aromatic polymer includes side chains attached to the main chain that include at least one aryl ring, and acid groups attached to both the main chain and to the aryl groups. Another polymer includes an aliphatic hydrocarbon main chain, side chains that include at least one deactivating aryl ring, and acid groups attached to the deactivating aryl rings.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: July 17, 2012
    Assignee: Battelle Memorial Institute
    Inventors: Ramanathan S. Lalgudi, Bhima R. Vijayendran, Jeffrey Cafmeyer, Jay R. Sayre
  • Publication number: 20120136116
    Abstract: A series of resins were synthesized using a range of bio-based materials to control the molecular architecture, and therefore the properties, of the inventive resins. The utility of these resins was demonstrated in the formulation of powder coatings, such as ?-hydroxy amide crosslinked and hybrid types. Generally, the bio-based resins flowed out on heating faster than conventional petrochemically-based resins, allowing the use of lower temperatures in the curing oven than is typically possible and a more active catalyst system, especially in the carboxylic acid-epoxy crosslinked hybrid coating formulations.
    Type: Application
    Filed: January 26, 2012
    Publication date: May 31, 2012
    Inventors: Bhima R. Vijayendran, Jerry L. King, II, Katherine P. Mitchell, Michael C. Clingerman, Jeffrey T. Cafmeyer
  • Patent number: 8148501
    Abstract: Absorbent hydrogels are formed by reacting a protein meal base, a radical initiator and a polymerizable monomer. Optionally, a cross-linking agent and/or a radical accelerant, such as tetramethylethylenediamine (TMEDA) or sodium bisulfite (NaHSO3), is also added to the mixture. Preferably, the radical initiator is ammonium persulfate (APS) or potassium persulfate (KPS), and the cross-linking agent is preferably trifunctional trimethylolpropane trimethacrylate (TMPTMA) or methylene bis acrylamide (MBA). The polymerizable monomer is preferably acrylic acid, or a combination of acrylic acid and acrylamide. The as-formed hydrogel is washed in order to extract non-reactant components from the gel and then dried. The resultant absorbent and superabsorbent hydrogels have high water uptake ratios, and can be utilized for a variety of applications.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: April 3, 2012
    Assignee: Battelle Memorial Institute
    Inventors: Herman P. Benecke, Bhima R. Vijayendran, Kevin B. Spahr
  • Patent number: 8129069
    Abstract: A fuel cell component is made with a composite including a proton conducting polymer, a water insoluble proton conducting inorganic material, and a heteropolyacid immobilized by chemically bonding to the inorganic material. In another embodiment, the fuel cell component is made with a composite including a non-proton conducting polymer, a water insoluble inorganic material, and a heteropolyacid immobilized by chemically bonding to the inorganic material, the heteropolyacid causing the composite to show proton conductivity. In a further embodiment, the fuel cell component is made with a composite comprising a proton conducting polymer, a water insoluble proton conducting inorganic material, and a heteropolyacid immobilized by chemically bonding to the inorganic material, the composite having substantially identical structure of the unmodified heteropolyacid.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: March 6, 2012
    Assignee: Battelle Memorial Institute
    Inventors: Ramanathan S. Lalgudi, Jay R. Sayre, Bhima R. Vijayendran
  • Patent number: 8124260
    Abstract: This invention relates in general to components of electrochemical devices, and to methods of preparing the components. The components and methods include the use of a composition comprising an ionically conductive polymer and at least one solvent, where the polymer and the solvent are selected based on the thermodynamics of the combination. In one embodiment, the invention relates to a component for an electrochemical device which is prepared from a composition comprising a true solution of an ionically conductive polymer and at least one solvent, the polymer and the at least one solvent being selected such that |? solvent?? solute|<1, where ? solvent is the Hildebrand solubility parameter of the at least one solvent and where ? solute is the Hildebrand solubility parameter of the polymer.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: February 28, 2012
    Assignee: Battelle Memorial Institute
    Inventors: Jay R. Sayre, Megan E. Sesslar, James L. White, John R. Stickel, Mark C. Stasik, Bhima R. Vijayendran
  • Patent number: 8106148
    Abstract: A series of resins were synthesized using a range of bio-based materials to control the molecular architecture, and therefore the properties, of the inventive resins. The utility of these resins was demonstrated in the formulation of powder coatings, such as ?-hydroxy amide crosslinked and hybrid types. Generally, the bio-based resins flowed out on heating faster than conventional petrochemically-based resins, allowing the use of lower temperatures in the curing oven than is typically possible and a more active catalyst system, especially in the carboxylic acid-epoxy crosslinked hybrid coatings formulations.
    Type: Grant
    Filed: March 20, 2006
    Date of Patent: January 31, 2012
    Assignee: Battelle Memorial Institute
    Inventors: Bhima R. Vijayendran, Jerry L. King, II, Katherine P. Mitchell, Michael C. Clingerman, Jeffrey T. Cafmeyer