| Patent Number |
Title Of Patent |
Date Issued |
| 7585199 |
Field emission devices using ion bombarded carbon nanotubes |
September 8, 2009 |
| The present invention relates to a field emission device comprising an anode and a cathode, wherein said cathode includes carbon nanotubes which have been treated with an ion beam. The ion beam may be any ions, including gallium, hydrogen, helium, argon, carbon, oxygen, and xenon ion |
| 7578989 |
Method of using carbide and/or oxycarbide containing compositions |
August 25, 2009 |
| Compositions including carbide-containing nanorods and/or oxycarbide-containing nanorods and/or carbon nanotubes bearing carbides and oxycarbides and methods of making the same are provided. Rigid porous structures including oxycarbide-containing nanorods and/or carbide containing na |
| 7576027 |
Methods of making carbide and oxycarbide containing catalysts |
August 18, 2009 |
| Methods for forming compositions including carbide-containing nanorods and/or oxycarbide-containing nanorods and/or carbon nanotubes bearing carbides and oxycarbides. Rigid porous structures including oxycarbide-containing nanorods and/or carbide containing nanorods and/or carbon nan |
| 7575733 |
Plasma-treated carbon fibrils and method of making same |
August 18, 2009 |
| A method of treating carbon fibrils and carbon fibril structures such as assemblages, aggregates and hard porous structures with a plasma to effect an alteration of the surface or structure of the carbon fibril or fibrils. The method can be utilized to functionalize, prepare for func |
| 7566749 |
Conductive thermosets by extrusion |
July 28, 2009 |
| Methods of preparing conductive thermoset precursors containing carbon nanotubes is provided. Also provided is a method of preparing conductive thermosets containing carbon nanotubes. The carbon nanotubes may in individual form or in the form of aggregates having a macromorpology res |
| 7498013 |
Plasma-treated carbon fibrils and method of making same |
March 3, 2009 |
| A method of treating carbon fibrils and carbon fibril structures such as assemblages, aggregates and hard porous structures with a plasma to effect an alteration of the surface or structure of the carbon fibril or fibrils. The method can be utilized to functionalize, prepare for func |
| 7413723 |
Methods of oxidizing multiwalled carbon nanotubes |
August 19, 2008 |
| Methods of oxidizing multiwalled carbon nanotubes are provided. The multiwalled carbon nanotubes are oxidized by contacting the carbon nanotubes with gas-phase oxidizing agents such as CO.sub.2, O.sub.2, steam, N.sub.2O, NO, NO.sub.2, O.sub.3, and ClO.sub.2. Near critical and supercr |
| 7410628 |
Surface treatment of carbon microfibers |
August 12, 2008 |
| A method of oxidizing the surface of carbon microfibers that includes contacting the microfibers with an oxidizing agent that includes sulfuric acid and potassiaum chlorate under reaction conditions sufficient to oxidize the surface. The invention also features a method of decreasing |
| 7396798 |
Method for preparing catalyst supports and supported catalysts from single walled carbon nanotub |
July 8, 2008 |
| A new method for preparing a supported catalyst is herein provided. A carbon nanotube structure such as a rigid porous structure is formed from single walled carbon nanotubes. A metal catalyst is then loaded or deposited onto the carbon nanotube structure. The loaded carbon nanotube |
| 7393514 |
Carbide nanofibrils and method of making same |
July 1, 2008 |
| A plurality of carbide, such as silicon carbide, tungsten carbide, etc., nanofibrils predominantly having diameters substantially less than about 100 nm and a method for making such carbide nanofibrils. The method includes the steps of: heating a plurality of carbon nanotubes or nano |
| 7393475 |
Polyvinylidene fluoride composites and methods for preparing same |
July 1, 2008 |
| An electrically conductive composite comprising a polyvinylidene fluoride polymer or copolymer and carbon nanotubes is provided. Preferably, carbon nanotubes may be present in the range of about 0.5-20% by weight of the composite. The composites are prepared by dissolving the polymer in |
| 7341498 |
Method of irradiating field emission cathode having nanotubes |
March 11, 2008 |
| Field emission devices comprising carbon nanotube mats which have been treated with laser or plasma are provided. Mats are formed from carbon nanotubes, also known as carbon fibrils, which are vermicular carbon deposits having diameters of less than about one micron. The carbon nanot |
| 7230149 |
Method of using carbide and/or oxycarbide containing compositions |
June 12, 2007 |
| Compositions including carbide-containing nanorods and/or oxycarbide-containing nanorods and/or carbon nanotubes bearing carbides and oxycarbides and methods of making the same are provided. Rigid porous structures including oxycarbide-containing nanorods and/or carbide containing na |
| 7198772 |
Methods and catalysts for the manufacture of carbon fibrils |
April 3, 2007 |
| An improved catalyst for producing carbon fibrils is made by incorporating an effective yield-enhancing amount of a carboxylate into a fibril-forming catalyst. Alternatively, such a catalyst is made by coprecipitating a compound of a metal having fibril-forming catalytic properties a |
| 7169730 |
Modified carbide and oxycarbide containing catalysts and methods of making and using thereof |
January 30, 2007 |
| Compositions including modified carbide-containing nanorods and/or modified oxycarbide-containing nanorods and/or modified carbon nanotubes bearing carbides and oxycarbides and methods of making the same are provided. Rigid porous structures including modified oxycarbide-containing n |
| 7144564 |
Process for producing single wall nanotubes using unsupported metal catalysts and single wall na |
December 5, 2006 |
| A process for producing hollow, single-walled carbon nanotubes by catalytic decomposition of one or more gaseous carbon compounds by first forming a gas phase mixture carbon feed stock gas comprising one or more gaseous carbon compounds, each having one to six carbon atoms and only H, |
| 7097821 |
Process for producing single wall nanotubes using unsupported metal catalysts and single wall na |
August 29, 2006 |
| A process for producing hollow, single-walled carbon nanotubes by catalytic decomposition of one or more gaseous carbon compounds by first forming a gas phase mixture carbon feed stock gas comprising one or more gaseous carbon compounds, each having one to six carbon atoms and only H, |
| 7074379 |
Process for producing single wall nanotubes using unsupported metal catalysts and single wall na |
July 11, 2006 |
| A process for producing hollow, single-walled carbon nanotubes by catalytic decomposition of one or more gaseous carbon compounds by first forming a gas phase mixture carbon feed stock gas comprising one or more gaseous carbon compounds, each having one to six carbon atoms and only H, |
| 7070753 |
Modification of nanotubes oxidation with peroxygen compounds |
July 4, 2006 |
| A method of chemically modifying carbon nanotubes having a diameter less than one micron comprising: contacting the nanotubes with a peroxygen compound selected from the group consisting of organic peroxyacids, inorganic peroxoacids and organic hydroperoxides, or a salt thereof, unde |
| 7056452 |
Polyvinylidene fluoride composites and methods for preparing same |
June 6, 2006 |
| An electrically conductive composite comprising a polyvinylidene fluoride polymer or copolymer and carbon nanotubes is provided. Preferably, carbon nanotubes may be present in the range of about 0.5 20% by weight of the composite.The composites are prepared by dissolving the polymer in a |
| 6960389 |
Rigid porous carbon structures, methods of making, methods of using and products containing same |
November 1, 2005 |
| This invention relates to rigid porous carbon structures and to methods of making same. The rigid porous structures have a high surface area which are substantially free of micropores. Methods for improving the rigidity of the carbon structures include causing the nanofibers to form bond |
| 6949159 |
Multilayered polymeric structure |
September 27, 2005 |
| A multilayered polymeric structure having at least two polymeric layers is provided, each layer being a mixture of a polymeric composition with carbon fibrils. The multilayer polymeric structure may include an electrically conductive material between the first and second polymeric la |
| 6936565 |
Modified carbide and oxycarbide containing catalysts and methods of making and using thereof |
August 30, 2005 |
| Compositions including modified carbide-containing nanorods and/or modified oxycarbide-containing nanorods and/or modified carbon nanotubes bearing carbides and oxycarbides and methods of making the same are provided. Rigid porous structures including modified oxycarbide-containing nanor |
| 6911767 |
Field emission devices using ion bombarded carbon nanotubes |
June 28, 2005 |
| The present invention relates to a field emission device comprising an anode and a cathode, wherein said cathode includes carbon nanotubes which have been treated with an ion beam. The ion beam may be any ions, including gallium, hydrogen, helium, argon, carbon, oxygen, and xenon ion |
| 6872681 |
Modification of nanotubes oxidation with peroxygen compounds |
March 29, 2005 |
| A method of chemically modifying carbon nanotubes having a diameter less than one micron comprising: contacting the nanotubes with a peroxygen compound selected from the group consisting of organic peroxyacids, inorganic peroxoacids and organic hydroperoxides, or a salt thereof, under |
| 6841508 |
Carbide and oxycarbide based compositions, rigid porous structures including the same, methods o |
January 11, 2005 |
| Compositions including oxycarbide-based nanorods and/or carbide-based nanorods and/or carbon nanotubes bearing carbides and oxycarbides and methods of making the same are provided.Rigid porous structures including oxycarbide-based nanorods and/or carbide based nanorods and/or carbon nano |
| 6828282 |
Lubricants containing carbon nanotubes |
December 7, 2004 |
| Improved fuel compositions containing carbon nanotubes in from 0.01% to 30.0% by weight of fuel have improved burn rate and other valuable properties. Improved lubricant compositions containing carbon nanotubes in from 0.01 to 20.0% by weight of lubricant have improved viscosity and |
| 6827919 |
Process for producing single wall nanotubes using unsupported metal catalysts and single wall na |
December 7, 2004 |
| A process for producing hollow, single-walled carbon nanotubes by catalytic decomposition of one or more gaseous carbon compounds by first forming a gas phase mixture carbon feed stock gas comprising one or more gaseous carbon compounds, each having one to six carbon atoms and only H, O, |
| 6809229 |
Method of using carbide and/or oxycarbide containing compositions |
October 26, 2004 |
| Compositions including carbide-containing nanorods and/or oxycarbide-containing nanorods and/or carbon nanotubes bearing carbides and oxycarbides and methods of making the same are provided. Rigid porous structures including oxycarbide-containing nanorods and/or carbide containing na |
| 6783702 |
Polyvinylidene fluoride composites and methods for preparing same |
August 31, 2004 |
| An electrically conductive composite comprising a polyvinylidene fluoride polymer or copolymer and carbon nanotubes is provided. Preferably, carbon nanotubes may be present in the range of about 0.5-20% by weight of the composite.The composites are prepared by dissolving the polymer in a |
| 6770589 |
Methods and catalysts for the manufacture of carbon fibrils |
August 3, 2004 |
| An improved catalyst for producing carbon fibrils is made by incorporating an effective yield-enhancing amount of a carboxylate into a fibril-forming catalyst. Alternatively, such a catalyst is made by coprecipitating a compound of a metal having fibril-forming catalytic properties and a |
| 6746627 |
Methods for preparing polyvinylidene fluoride composites |
June 8, 2004 |
| An electrically conductive composite comprising a polyvinylidene fluoride polymer or copolymer and carbon nanotubes is provided. Preferably, carbon nanotubes may be present in the range of about 0.5-20% by weight of the composite.The composites are prepared by mixing or dispersing carbon |
| 6699454 |
Catalysts for the manufacture of carbon fibrils and methods of use thereof |
March 2, 2004 |
| A method for the manufacture of a catalyst for the production of carbon fibrils comprising contacting a fibril-forming catalyst or precursors of a fibril-forming catalyst with an effective amount of a surfactant and/or polyol.A catalyst for the production of carbon fibrils formed by cont |
| 6696387 |
Catalysts for the manufacture of carbon fibrils and methods of use thereof |
February 24, 2004 |
| A catalyst for the production of carbon fibrils and a method for the manufacture of such a catalyst comprising contacting a fibril-forming catalyst or precursors of a fibril-forming catalyst with an effective amount of a surfactant and/or polyol. The improved carbon fibrils or carbon |
| 6665169 |
Graphitic nanofibers in electrochemical capacitors |
December 16, 2003 |
| Graphitic nanofibers, which include tubular fullerenes (commonly called "buckytubes"), nanotubes and fibrils, which are functionalized by chemical substitution, are used as electrodes in electrochemical capacitors. The graphitic nanofiber based electrode increases the performance of the |
| 6514897 |
Carbide and oxycarbide based compositions, rigid porous structures including the same, methods o |
February 4, 2003 |
| The present invention relates to compositions and rigid porous structures that contain nanorods having carbides and/or oxycarbides and methods of making and using such compositions and such rigid porous structures. The compositions and rigid porous structures can be used either as cataly |
| 6491789 |
Fibril composite electrode for electrochemical capacitors |
December 10, 2002 |
| Composite electrodes including carbon nanofibers (fibrils) and an electrochemically active material are provided for use in electrochemical capacitors. The fibril composite electrodes exhibit high conductivity, improved efficiency of active materials, high stability, easy processing, |
| 6464908 |
Method of molding composites containing carbon fibrils |
October 15, 2002 |
| A composite that includes a reaction injection molded matrix into which carbon fibrils have been incorporated, and a molding composition suitable for preparing such a composite. The invention also features a composite that includes a premix in which carbon fibrils have been incorporated |
| 6432866 |
Rigid porous carbon structures, methods of making, methods of using and products containing same |
August 13, 2002 |
| This invention relates to rigid porous carbon structures and to methods of making same. The rigid porous structures have a high surface area which are substantially free of micropores. Methods for improving the rigidity of the carbon structures include causing the nanofibers to form bond |
| 6423288 |
Fibrils |
July 23, 2002 |
| A process for preparing carbon fibrils by contacting a source of carbon with a supported catalyst that includes at least one multivalent transition metal having a size of about 35 to 700 A deposited on an inorganic substrate having a size of up to about 400 microns. |
| 6419717 |
Carbon nanotubes in fuels |
July 16, 2002 |
| Improved fuel compositions containing carbon nanotubes in from 0.01% to 30.0% by weight of fuel have improved bum rate and other valuable properties. Improved lubricant compositions containing carbon nanotubes in from 0.01 to 20.0% by weight of lubricant have improved viscosity and o |
| 6414836 |
Electrochemical capacitors having electrodes with diverse redox potentials |
July 2, 2002 |
| Graphitic nanofibers, which include tubular fullerenes (commonly called "buckytubes"), nanotubes and fibrils, which are functionalized by chemical substitution, are used as electrodes in electrochemical capacitors. The graphitic nanofiber based electrode increases the performance of the |
| 6403696 |
Fibril-filled elastomer compositions |
June 11, 2002 |
| A composite that includes an elastomer matrix into which carbon fibrils are incorporated. The fibrils are characterized as having a morphology consisting of tubes that are free of a continuous thermal carbon overcoat and have graphitic layers that are substantially parallel to the fibril |
| 6375917 |
Apparatus for the production of carbon fibrils by catalysis and methods thereof |
April 23, 2002 |
| A process for preparing carbon fibrils by contacting a source of carbon with a supported catalyst that includes at least one multivalent transition metal having a size of about to 700 A deposited on an inorganic substrate having a size up to about 400 microns. |
| 6358878 |
Carbon fibril-forming metal catalysts |
March 19, 2002 |
| A fibril aggregate that includes a multiplicity of carbon fibrils whose longitudinal axes have substantially the same relative orientation, each of the fibrils characterized as having graphitic layers that are substantially parallel to its longitudinal axis and being free of a contin |
| 6294144 |
Methods and catalysts for the manufacture of carbon fibrils |
September 25, 2001 |
| An improved catalyst for producing carbon fibrils is made by incorporating an effective yield-enhancing amount of a carboxylate into a fibril-forming catalyst. Alternatively, such a catalyst is made by coprecipitating a compound of a metal having fibril-forming catalytic properties and a |
| 6248478 |
Battery |
June 19, 2001 |
| An improved battery having an anode, a cathode that includes a chemically reducible material into which is incorporated an amount of electrically conductive carbon microfibers sufficient to enhance the electrical conductivity of said chemically reducible material, and an electrolyte. |
| 6221330 |
Process for producing single wall nanotubes using unsupported metal catalysts |
April 24, 2001 |
| A process for producing hollow, single-walled carbon nanotubes by catalytic decomposition of one or more gaseous carbon compounds by first forming a gas phase mixture carbon feed stock gas comprising one or more gaseous carbon compounds, each having one to six carbon atoms and only H, O, |
| 6205016 |
Fibril composite electrode for electrochemical capacitors |
March 20, 2001 |
| Composite electrodes including carbon nanofibers (fibrils) and an electrochemically active material are provided for use in electrochemical capacitors. The fibril composite electrodes exhibit high conductivity, improved efficiency of active materials, high stability, easy processing, |
| 6203814 |
Method of making functionalized nanotubes |
March 20, 2001 |
| Graphitic nanotubes, which includes tubular fullerenes (commonly called "buckytubes") and fibrils, which are functionalized by chemical substitution or by adsorption of functional moieties. More specifically the invention relates to graphitic nanotubes which are uniformly or non-unif |
