| Patent application number | Description | Published |
|---|
| 20080293853 | METHOD FOR PRODUCING CARBON NANOTUBE/POLYMER MIXTURES BY GAS-PHASE POLYMERIZATION - The present invention relates to a novel method for producing polymer/carbon nanotube mixtures by gas-phase polymerization, optionally subsequent dispersion in a carbon nanotube/polymer composite, and in particular homogeneous carbon nanotube/polymer mixtures and carbon nanotube/polymer composites by in situ gas-phase polymerization of olefins or diolefins on carbon nanotubes, wherein the catalysts and, optionally, co-catalysts are supported on the carbon nanotubes. | 11-27-2008 |
| 20090023851 | PROCESS FOR THE PRODUCTION OF AN ELECTRICALLY CONDUCTING POLYMER COMPOSITE MATERIAL - Process for the production of an electrically conducting carbon nanotube polymer composite material with reduced surface resistance, in which carbon nanotubes are dispersed in a polymer melt in a twin-shaft screw extruder to form a mixture, and the mixture is then extruded. | 01-22-2009 |
| 20090087372 | PROCESS FOR THE PREPARATION OF A CATALYST FOR THE PRODUCTION OF CARBON NANOTUBES - A process for the preparation of a catalyst for the production of carbon nanotubes, the use of the catalyst for the production of carbon nanotubes, and the carbon nanotubes obtained by this production process. The catalyst is prepared on the basis of at least two metals from the group: cobalt, manganese, iron, nickel and molybdenum from soluble precursor compounds by spray drying or spray granulation of the precursor compounds dissolved in a solvent, and subsequent calcination. | 04-02-2009 |
| 20090140215 | CATALYST FOR PRODUCING CARBON NANOTUBES BY MEANS OF THE DECOMPOSITION OF GASEOUS CARBON COMPOUNDS ON A HETEROGENEOUS CATALYST - The present invention relates to a process for the production of carbon nanotubes, in particular those having a diameter of 3-150 nm and an aspect ratio of length:diameter (L:D)>100, by decomposition of hydrocarbons on a heterogeneous catalyst which comprises Mn, Co, preferably also molybdenum, and an inert support material, and the catalyst and the carbon nanotubes themselves and the use thereof. | 06-04-2009 |
| 20100152484 | PROCESS FOR THE PREPARATION OF ISOCYANATES IN THE GAS PHASE - Aromatic isocyanates are produced by reacting one or more aromatic primary amines with phosgene in the gas phase. The phosgene and primary aromatic amine(s) are reacted at a temperature above the boiling temperature of the amine(s) in a reactor having a reaction space which is essentially rotationally symmetric to the direction of flow. The flow fate, averaged over the cross-section, of the reaction mixture along the axis of the essentially rotationally symmetric reaction space in the section of the reaction space in which the conversion of the amine groups into isocyanate groups is between 4 and 80 % is not more than 8 m/sec. The flow rate averaged over the cross-section of the reaction mixture along the axis of the essentially rotationally symmetric reaction space in the section of the reaction space in which the conversion of the amine groups into isocyanate groups is 4 to 80 % is always below the flow rate averaged over the cross-section at the start of this section. | 06-17-2010 |
| 20100160673 | PROCESS FOR THE PREPARATION OF ISOCYANATES IN THE GAS PHASE - Primary isocyanates are produced by reacting the corresponding primary amine(s) with phosgene at a temperature above the boiling temperature of the amine(s) in a tube reactor with a reaction space. In this tube reactor, at least one educt stream P containing phosgene and at least one educt stream A containing the amine(s) are fed to the reaction space via a nozzle arrangement. The nozzle arrangement includes a number of n≧1 nozzles aligned parallel to the axis of rotation of the tube reactor and a free space surrounding the nozzles. One of the educt streams A or P is fed to the reaction space via the nozzles and the other educt stream is fed to the reaction space via the free space surrounding the nozzles. The reaction space contains at least one moving mixing device. | 06-24-2010 |
| 20100276644 | METHOD FOR PRODUCING NITROGEN-DOPED CARBON NANOTUBES - Process for producing nitrogen-doped carbon nanotubes (NCNTs) in a fluidized bed. | 11-04-2010 |
| 20110005938 | ELECTROLYSIS CELL FOR HYDROGEN CHLORIDE ELECTROLYSIS - Apparatus for hydrogen chloride electrolysis, comprising a cathode that has a layer of nitrogen-doped carbon nanotubes having functional groups containing nitrogen. | 01-13-2011 |
| 20110042231 | PROCESS FOR THE REDUCTION OF OXYGEN - Process for the reduction of oxygen in aqueous chlorine- and/or chloride-containing solutions in the presence of a catalyst comprising nitrogen-doped carbon nanotubes. | 02-24-2011 |
| 20110130592 | Catalyst and Process for Hydrogenating Organic Compounds - The invention relates to a catalyst and a process for hydrogenating organic compounds. | 06-02-2011 |
| 20110233071 | ELECTROCHEMICAL METHOD FOR REDUCING MOLECULAR OXYGEN - Electrochemical process for the reduction of molecular oxygen in alkaline solutions in the presence of nitrogen-doped carbon nanotubes, in which no hydrogen peroxide forms as a by-product of the reduction. | 09-29-2011 |
| 20130011328 | PREPARATION OF CNTS - The present invention relates to a process comprising the steps a) synthesis of carbon nanotubes, b) optional inerting and c) cooling of the product. The process permits problem-free handling and packing of the carbon nanotube material that is produced. | 01-10-2013 |
| 20130039839 | PRODUCTION OF CARBON NANOTUBES - The invention relates to a novel process for the production of catalysts for the production of carbon nanotubes in agglomerated form, which are characterised by a low bulk density. This invention likewise provides the catalysts, their use in the production of carbon nanotubes in high catalyst-specific yields, and the carbon nanotubes produced by this process. | 02-14-2013 |
