Patent application number | Description | Published |
20080224100 | METHODS FOR PRODUCING COMPOSITES OF FULLERENE NANOTUBES AND COMPOSITIONS THEREOF - 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 said matrix. In another embodiment, a method of producing a composite material containing fullerene nanotube material is disclosed. This method includes the steps of preparing an assembly of a fibrous material; adding the fullerene nanotube material to the fibrous material; and adding a matrix material precursor to the fullerene nanotube material and the fibrous material. | 09-18-2008 |
20080280160 | Isolation and purification of single walled carbon nanotube structures - Disclosed are methods for isolating and purifying single wall carbon nanotubes from contaminant matrix material, methods for forming arrays of substantially aligned nanotubes, and products and apparatus comprising a plurality of nanotube structures. | 11-13-2008 |
20080311025 | METHOD FOR FORMING A PATTERNED ARRAY OF FULLERENE NANOTUBES - 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 substrate under conditions that effect growth of fullerene nanotubes from each microwell. | 12-18-2008 |
20090004094 | METHOD FOR CUTTING FULLERENE NANOTUBES - 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 and annealing processes may be carried out on a purified nanotube bucky paper, on felts prior to purification of nanotubes or on any material that contains fullerene nanotubes. In one embodiment, oxidative etching with concentrated nitric acid is employed to cut fullerene nanotubes into shorter lengths. The annealed nanotubes may be disbursed in an aqueous detergent solution or an organic solvent for the fractionation. Closed tubes can also be derivatized to facilitate fractionation, for example, by adding solubilizing moieties to the end caps. | 01-01-2009 |
20090169463 | ARRAY OF FULLERENE NANOTUBES - This invention relates generally to forming an array of fullerene nanotubes. In one embodiment, a macroscopic molecular array is provided comprising at least about 10 | 07-02-2009 |
20100096265 | MACROSCOPICALLY MANIPULABLE NANOSCALE DEVICES MADE FROM NANOTUBE ASSEMBLIES - This invention relates generally to cutting single-wall carbon nanotubes (SWNT). In one embodiment, the present invention provides for preparations of homogeneous populations of short carbon nanotube molecules by cutting and annealing (reclosing) the nanotube pieces followed by fractionation. The cutting and annealing processes may be carried out on a purified nanotube bucky paper, on felts prior to purification of nanotubes or on any material that contains single-wall nanotubes. In one embodiment, oxidative etching with concentrated nitric acid is employed to cut SWNTs into shorter lengths. The annealed nanotubes may be disbursed in an aqueous detergent solution or an organic solvent for the fractionation. Closed tubes can also be derivatized to facilitate fractionation, for example, by adding solubilizing moieties to the end caps. | 04-22-2010 |
20100247777 | Isolation and purification of single walled carbon nanotube structures - Disclosed are methods for isolating and purifying single wall carbon nanotubes from contaminant matrix material, methods for forming arrays of substantially aligned nanotubes, and products and apparatus comprising a plurality of nanotube structures. | 09-30-2010 |
20110086781 | METHOD FOR FORMING COMPOSITES OF SUB-ARRAYS OF FULLERENE NANOTUBES - The formation of arrays of fullerene nanotubes is described. A microscopic molecular array of fullerene nanotubes is formed by assembling subarrays of up to 10 | 04-14-2011 |