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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Colbert; Daniel T.
Address:
Houston, TX
No. of patents:
49
Patents:




Patent Number Title Of Patent Date Issued
7527780 Functionalized single-wall carbon nanotubes May 5, 2009
This invention is directed to making chemical derivatives of carbon nanotubes and to uses for the derivatized nanotubes, including making arrays as a basis for synthesis of carbon fibers. In one embodiment, this invention also provides a method for preparing single wall carbon nanotu
7510695 Method for forming a patterned array of fullerene nanotubes March 31, 2009
This invention relates generally to forming a patterned array of fullerene nanotubes. In one embodiment, a nanoscale array of microwells is provided on a substrate; a metal catalyst is deposited in each microwells; and a stream of hydrocarbon or CO feedstock gas is directed at the substr
7481989 Method for cutting fullerene nanotubes January 27, 2009
This invention relates generally to cutting fullerene nanotubes. In one embodiment, the present invention provides for preparation of homogeneous populations of short fullerene nanotubes by cutting and annealing (reclosing) the nanotube pieces followed by fractionation. The cutting a
7419651 Method for producing self-assembled objects comprising fullerene nanotubes and compositions ther September 2, 2008
This invention relates generally to a method for producing self-assembled objects comprising fullerene nanotubes and compositions thereof. In one embodiment, the present invention involves a three-dimensional structure of derivatized fullerene nanotubes that spontaneously form. It includ
7419624 Methods for producing composites of fullerene nanotubes and compositions thereof September 2, 2008
This invention relates generally to a method for producing composites of fullerene nanotubes and compositions thereof. In one embodiment, the present invention involves a method of producing a composite material that includes a matrix and a fullerene nanotube material embedded within
7390767 Method for producing a catalyst support and compositions thereof June 24, 2008
This invention relates generally to a method for producing fullerene nanotube catalyst supports and compositions thereof. In one embodiment, fullerene nanotubes or fullerene nanotube structures can be employed as the support material. A transition metal catalyst is added to the fulle
7390477 Fullerene nanotube compositions June 24, 2008
This invention relates generally to a fullerene nanotube composition. The fullerene nanotubes may be in the form of a felt, such as a bucky paper. Optionally, the fullerene nanotubes may be derivatized with one or more functional groups. Devices employing the fullerene nanotubes of this
7357906 Method for fractionating single-wall carbon nanotubes April 15, 2008
The invention relates generally to dispersing and fractionating single-wall carbon nanotubes, which can be derivatized to facilitate fractionation, for example, by adding solubilizing moieties to the nanotubes.
7354563 Method for purification of as-produced fullerene nanotubes April 8, 2008
This invention relates generally to a fullerene nanotube purification process and more particularly to a purification process that comprises heating the fullerene nanotube-containing felt under oxidizing conditions to remove the amorphous carbon deposits and other contaminating mater
7338915 Ropes of single-wall carbon nanotubes and compositions thereof March 4, 2008
This invention provides a method of making single-wall carbon nanotubes by laser vaporizing a mixture of carbon and one or more Group VIII transition metals. Single-wall carbon nanotubes preferentially form in the vapor and the one or more Group VIII transition metals catalyzed growt
7264876 Polymer-wrapped single wall carbon nanotubes September 4, 2007
The present invention relates to new compositions of matter and articles of manufacture comprising SWNTs as nanometer scale conducting rods dispersed in an electrically-insulating matrix. These compositions of matter have novel and useful electrical, mechanical, and chemical properti
7205069 Membrane comprising an array of single-wall carbon nanotubes April 17, 2007
This invention relates generally to membranes comprising an array of single-wall carbon nanotubes (SWNT) wherein the membrane is nanoporous. In one embodiment, the membrane comprises a substantially two-dimensional array of a homogeneous population of single-walled nanotubes aggregated
7204970 Single-wall carbon nanotubes from high pressure CO April 17, 2007
The present invention discloses the process of supplying high pressure (e.g., 30 atmospheres) CO that has been preheated (e.g., to about 1000.degree. C.) and a catalyst precursor gas (e.g., Fe(CO).sub.5) in CO that is kept below the catalyst precursor decomposition temperature to a m
7201887 Catalytic growth of single-and double-wall carbon nanotubes from metal particles April 10, 2007
The present invention concerns a method for growing carbon nanotubes using a catalyst system that preferentially promotes the growth of single- and double-wall carbon nanotubes, rather than larger multi-walled carbon nanotubes. Ropes of the carbon nanotubes are formed that comprise s
7125534 Catalytic growth of single- and double-wall carbon nanotubes from metal particles October 24, 2006
Single-walled carbon nanotubes have been synthesized by the catalytic decomposition of both carbon monoxide and ethylene over a supported metal catalyst known to produce larger multi-walled nanotubes. Under certain conditions, there is no termination of nanotube growth, and production
7115864 Method for purification of as-produced single-wall carbon nanotubes October 3, 2006
This invention relates generally to a single-wall carbon nanotube (SWNT) purification process and more particularly to a purification process that comprises heating the SWNT-containing felt under oxidizing conditions to remove the amorphous carbon deposits and other contaminating materia
7108841 Method for forming a patterned array of single-wall carbon nanotubes September 19, 2006
This invention relates generally to forming a patterned array of single-wall carbon nanotubes (SWNT). In one embodiment, a nanoscale array of microwells is provided on a substrate; a metal catalyst is deposited in each microwells; and a stream of hydrocarbon or CO feedstock gas is di
7105596 Methods for producing composites of single-wall carbon nanotubes and compositions thereof September 12, 2006
This invention relates generally to a method for producing composites of single-wall carbon nanotubes (SWNTs) and compositions thereof. In one embodiment, the present invention involves a method of producing a composite material that includes a matrix and a carbon nanotube material e
7097820 Continuous fiber of single-wall carbon nanotubes August 29, 2006
This invention relates generally to carbon fiber produced from single-wall carbon nanotube (SWNT) molecular arrays. In one embodiment, the carbon fiber which comprises an aggregation of substantially parallel carbon nanotubes comprises more than one molecular array. Another embodiment of
7087207 Method for forming an array of single-wall carbon nanotubes in an electric field and composition August 8, 2006
This invention relates generally to a forming an array of single-wall carbon nanotubes (SWNT) in an electric field and compositions thereof. In one embodiment, a purified bucky paper of single-wall carbon nanotubes is used as the starting material. Upon oxidative treatment of the bucky
7071406 Array of single-wall carbon nanotubes July 4, 2006
This invention relates generally to forming an array of single-wall carbon nanotubes (SWNT). In one embodiment, a macroscopic molecular array is provided comprising at least about 10.sup.6 single-wall carbon nanotubes in generally parallel orientation and having substantially similar
7070754 Ropes of single-wall carbon nanotubes July 4, 2006
This invention provides a method of making single-wall carbon nanotubes by laser vaporizing a mixture of carbon and one or more Group VIII transition metals. Single-wall carbon nanotubes preferentially form in the vapor and the one or more Group VIII transition metals catalyzed growt
7067098 Method for forming an array of single -wall carbon nanotubes and compositions thereof June 27, 2006
This invention relates generally to forming an array of single-wall carbon nanotubes (SWNT) and compositions thereof. In one embodiment, a homogeneous population of SWNT molecules is used to produce a substantially two-dimensional array made up of single-walled nanotubes aggregated i
7052666 Method for cutting single-wall carbon nanotubes May 30, 2006
This invention relates generally to cutting single-wall carbon nanotubes (SWNT). In one embodiment, the present invention provides for preparations of homogemeous populations of short carbon nanotube molecules by cutting and annealing (reclosing) the nanotube pieces followed by fract
7048999 Method for producing self-assembled objects comprising single-wall carbon nanotubes and composit May 23, 2006
This invention relates generally to a method for producing self-assembled objects comprising single-wall carbon nanotubes (SWNTs) and compositions thereof. In one embodiment, the present invention involves a three-dimensional structure of derivatized single-wall nanotube molecules th
7048903 Macroscopically manipulable nanoscale devices made from nanotube assemblies May 23, 2006
Macroscopically manipulable nanoscale devices made from nanotube assemblies are disclosed. The article of manufacture comprises a macroscopic mounting element capable of being manipulated or observed in a macroscale environment, and a nanoscale nanotube assembly attached to the mount
7041620 Method for producing a catalyst support and compositions thereof May 9, 2006
This invention relates generally to a method for producing single-wall carbon nanotube (SWNT) catalyst supports and compositions thereof. In one embodiment, SWNTs or SWNT structures can be employed as the support material. A transition metal catalyst is added to the SWNT. In a prefer
7008604 Method for cutting nanotubes March 7, 2006
This invention relates generally to cutting single-wall carbon nanotubes (SWNT). In one embodiment, the present invention provides for preparation of homogeneous populations of short carbon nanotube molecules by cutting and annealing (reclosing) the nanotube pieces followed by fractionat
7008563 Polymer-wrapped single wall carbon nanotubes March 7, 2006
The present invention relates to new compositions of matter and articles of manufacture comprising SWNTs as nanometer scale conducting rods dispersed in an electrically-insulating matrix. These compositions of matter have novel and useful electrical, mechanical, and chemical properti
6986876 Method for forming composites of sub-arrays of single-wall carbon nanotubes January 17, 2006
This invention relates generally to forming arrays of single-wall carbon nanotubes (SWNT). In one embodiment, the present invention involves forming a macroscopic molecular array of tubular carbon molecules, said method comprising the step of assembling subarrays of up to 10.sup.6 si
6979709 Continuous fiber of single-wall carbon nanotubes December 27, 2005
This invention relates generally to carbon fiber produced from single-wall carbon nanotube (SWNT) molecular arrays. In one embodiment, the present invention involves a macroscopic carbon fiber comprising at least 10.sup.6 signal-wall carbon nanotubes in generally parallel orientation.
6969504 Electrical conductors comprising single-wall carbon nanotubes November 29, 2005
The present invention concerns electrical conductors comprising armchair single-wall carbon nanotubes. Such electrical conductors made by the invention are metallic, i.e., they will conduct electrical charges with a relatively low resistance. The amount of armchair single-wall carbon
6949237 Method for growing single-wall carbon nanotubes utlizing seed molecules September 27, 2005
This invention relates generally to a method for growing single-wall carbon nanotube (SWNT) from seed molecules. The supported or unsupported SWNT seed materials can be combined with a suitable growth catalyst by opening SWNT molecule ends and depositing a metal atom cluster. In one embo
6939525 Method of forming composite arrays of single-wall carbon nanotubes and compositions thereof September 6, 2005
This invention relates generally to forming arrays of single-wall carbon nanotubes (SWNT) and compositions thereof. In one embodiment, the present invention involves forming an array from more than one separately prepared molecular arrays or templates to prepare a composite structure. Th
6936233 Method for purification of as-produced single-wall carbon nanotubes August 30, 2005
This invention relates generally to a single-wall carbon nanotube (SWNT) purification process and more particularly to a purification process that comprises heating the SWNT-containing felt under oxidizing conditions to remove the amorphous carbon deposits and other contaminating materia
6875412 Chemically modifying single wall carbon nanotubes to facilitate dispersal in solvents April 5, 2005
This invention is directed to making chemical derivatives of carbon nanotubes and to uses for the derivatized nanotubes, including making arrays as a basis for synthesis of carbon fibers. In one embodiment, this invention also provides a method for preparing single wall carbon nanotu
6841139 Methods of chemically derivatizing single-wall carbon nanotubes January 11, 2005
This invention is directed to making chemical derivatives of carbon nanotubes and to uses for the derivatized nanotubes, including making arrays as a basis for synthesis of carbon fibers. In one embodiment, this invention also provides a method for preparing single wall carbon nanotu
6835366 Chemical derivatization of single-wall carbon nanotubes to facilitate solvation thereof, and use December 28, 2004
This invention is directed to making chemical derivatives of carbon nanotubes and to uses for the derivatized nanotubes, including making arrays as a basis for synthesis of carbon fibers. In one embodiment, this invention also provides a method for preparing single wall carbon nanotu
6827918 Dispersions and solutions of fluorinated single-wall carbon nanotubes December 7, 2004
This invention is directed to making chemical derivatives of carbon nanotubes and to uses for the derivatized nanotubes, including making arrays as a basis for synthesis of carbon fibers. In one embodiment, this invention also provides a method for preparing single wall carbon nanotu
6824755 Method for producing a catalyst support and compositions thereof November 30, 2004
This invention relates generally to a method for producing single-wall carbon nanotube (SWNT) catalyst supports and compositions thereof. In one embodiment, SWNTs or SWNT structures can be employed as the support material. A transition metal catalyst is added to the SWNT. In a preferred
6790425 Macroscopic ordered assembly of carbon nanotubes September 14, 2004
The present invention is directed to the creation of macroscopic materials and objects comprising aligned nanotube segments. The invention entails aligning single-wall carbon nanotube (SWNT) segments that are suspended in a fluid medium and then removing the aligned segments from suspens
6761870 Gas-phase nucleation and growth of single-wall carbon nanotubes from high pressure CO July 13, 2004
The present invention discloses the process of supplying high pressure (e.g., 30 atmospheres) CO that has been preheated (e.g., to about 1000.degree. C.) and a catalyst precursor gas (e.g., Fe(CO).sub.5) in CO that is kept below the catalyst precursor decomposition temperature to a m
6756026 Method for growing continuous carbon fiber and compositions thereof June 29, 2004
This invention relates generally to a method for growing carbon fiber from single-wall carbon nanotube (SWNT) molecular arrays. The carbon fiber which comprises an aggregation of substantially parallel carbon nanotubes may be produced by growth (elongation) of a suitable seed molecular a
6756025 Method for growing single-wall carbon nanotubes utilizing seed molecules June 29, 2004
This invention relates generally to a method for growing single-wall carbon nanotube (SWNT) from seed molecules. The supported or unsupported SWNT seed materials can be combined with a suitable growth catalyst by opening SWNT molecule ends and depositing a metal atom cluster. In one embo
6749827 Method for growing continuous fiber June 15, 2004
This invention relates generally to a method for growing carbon fiber from single-wall carbon nanotube (SWNT) molecular arrays. In one embodiment, the present invention involves a macroscopic molecular array of at least about 10.sup.6 tubular carbon molecules in generally parallel orient
6692717 Catalytic growth of single-wall carbon nanotubes from metal particles February 17, 2004
Single-walled carbon nanotubes have been synthesized by the catalytic decomposition of both carbon monoxide and ethylene over a supported metal catalyst known to produce larger multi-walled nanotubes. Under certain conditions, there is no termination of nanotube growth, and production
6683783 Carbon fibers formed from single-wall carbon nanotubes January 27, 2004
A method for purifying a mixture comprising single-wall carbon nanotubes and amorphous carbon contaminate is disclosed. The method includes the steps of heating the mixture under oxidizing conditions sufficient to remove the amorphous carbon, followed by recovering a product comprising
6645455 Chemical derivatization of single-wall carbon nanotubes to facilitate solvation thereof; and use November 11, 2003
This invention is directed to making chemical derivatives of carbon nanotubes and to uses for the derivatized nanotubes, including making arrays as a basis for synthesis of carbon fibers. In one embodiment, this invention also provides a method for preparing single wall carbon nanotu
6183714 Method of making ropes of single-wall carbon nanotubes February 6, 2001
This invention provides a method of making single-wall carbon nanotubes by laser vaporizing a mixture of carbon and one or more Group VIII transition metals. Single-wall carbon nanotubes preferentially form in the vapor and the one or more Group VIII transition metals catalyzed growth of


 
 
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