Patent application number | Description | Published |
20080261043 | Method for Producing Nanofibres and Mesofibres by the Electrospinning of Colloidal Dispersions - Processes for forming polymer fibers, comprising: (a) providing a colloidal dispersion of at least one essentially water-insoluble polymer in an aqueous medium; and (b) electrospinning the colloidal dispersion; polymer fibers prepared by such processes; and colloidal dispersions comprising: at least one essentially water-insoluble polymer in an aqueous medium; and at least 10% by weight of a water-soluble polymer having a solubility in water of at least 0.1% by weight. | 10-23-2008 |
20090004086 | Thermoelectric Nanomaterials - The present invention relates to processes for producing nanowires and nanotubes by treating a fiber comprising at least one support material and at least one thermoelectrically active material or a precursor compound of a thermoelectrically active material, to a nanowire comprising at least one thermoelectrically active material and having a diameter of ≦200 nm and a length of ≧1 mm, to nanotubes comprising at least one thermoelectrically active material and having a diameter of ≦200 nm, a wall thickness of ≦30 nm and a length of ≧1 mm, and to the use of the nanowires or nanotubes for thermoelectric heating, for electricity generation, in sensors or for temperature control. | 01-01-2009 |
20090032461 | METHOD FOR SEPARATING POLYMER SYSTEMS AND PORE-FREE POLYMER FILMS USED IN SAID METHOD - The subject matter of the invention is an innovative method for the separation of polymer systems regarding their molecular weight, chemical structure, chain architecture, and colloidal additives. Such separations are currently accomplished by selective precipitation from solution, by a fractionated crystallization also from solution, and by means of gel chromatographic methods. | 02-05-2009 |
20090148701 | Production of Metal Nano-and Mesofibers - The invention relates to a method for producing metal oxide fibers with diameters on the micro- and nanometric scale by using electrospinning. At least one polymer is dissolved in a solvent, a metal salt is dissolved in this polymer solution, and this mixture is subsequently electrospun into fibers. Breaking down the polymer renders metal oxide fibers accessible that can be optionally reduced into the corresponding metal fibers. | 06-11-2009 |
20100013126 | PROCESS FOR PRODUCING NANO- AND MESOFIBERS BY ELECTROSPINNING COLLOIDAL DISPERSIONS - The present invention relates to a process for producing polymer fibers, especially nano- and mesofibers, by the electrospinning process, in which a colloidal dispersion of at least one essentially water-insoluble polymer and of at least one nonionic surfactant, if appropriate further comprising at least one water-soluble polymer, is electrospun in an aqueous medium. The present invention further relates to fibers obtainable by this process. | 01-21-2010 |
Patent application number | Description | Published |
20080213590 | Invention Concerning Agricultural Active Substances - The invention relates to supports consisting of nanoscalar polymer fibres, polymer tubes or hollow fibres for the application and targeted and/or delayed release of ingredients, in particular, agricultural active ingredients. The invention also relates to a method and a device for the production of supports of this type in a charged or empty state. The method and device use electrospinning technology. | 09-04-2008 |
20080299208 | Anisometric Particles In The Form Of Nanofibers/Mesofibers,Nanopipes, Nanocables/Mesocables, Nanobands/Mesobands, And The Curved Or Branched Variations Thereof - The invention relates to novel anisometric mesoparticles and nanoparticles in the form of anisometric mesofibers/nanofibers, mesopipes/nanopipes, mesobands/nanobands, mesocables/nanocables, and the curved and branched or superimposed variations thereof as well as a novel method for the production thereof. The invention particularly relates to anisometric mesoparticles and nanoparticles which have an aerodynamic diameter <5 μm, the production thereof, loading thereof with active substances if the same cannot directly be utilized as an active substance, and the use thereof especially for producing medicaments against lung diseases or systemic diseases in humans and animals if the particles cannot directly be utilized as medicaments without carriers. | 12-04-2008 |
20090130301 | APPARATUS AND METHOD FOR PRODUCING ELECTRICALLY CONDUCTING NANOSTRUCTURES BY MEANS OF ELECTROSPINNING - Apparatus and method for producing electrically conducting nanostructures by means of electrospinning, the apparatus having at least a substrate holder ( | 05-21-2009 |
20110293846 | METHOD FOR COATING TARGET SURFACES IN THE FORM OF DIELECTRIC SUBSTANCES OR FERROELECTRIC CRYSTALS - The invention relates to supports consisting of nanoscalar polymer fibres, polymer tubes or hollow fibres for the application and targeted and/or delayed release of ingredients, in particular, agricultural active ingredients. The invention also relates to a method and a device for the production of supports of this type in a charged or empty state. The method and device use electrospinning technology. | 12-01-2011 |
20110300251 | DEVICE FOR THE EXECUTION OF THE OUTPUT OF NANOSCALED POLYMER FIBERS - Carriers for the production and targeted and/or delayed release, particularly of agricultural active substances, as well as a method for the output and a device for the production of such carriers in a loaded or unloaded state are proposed. The method and the device use the technology of electrospinning. | 12-08-2011 |
20110300383 | NANOSCALED POLYMER FIBERS - The invention relates to supports consisting of nanoscalar polymer fibres, polymer tubes or hollow fibres for the application and targeted and/or delayed release of ingredients, in particular, agricultural active ingredients. The invention also relates to a method and a device for the production of supports of this type in a charged or empty state. The method and device use electrospinning technology. | 12-08-2011 |
20120083037 | Non-Viral Transfection Agent - The invention relates to a non-viral transfection agent comprising polymer/nucleic acid complexes and nanofibers, wherein the polymer/nucleic acid complexes are composed of at least one nucleic acid and at least one cationic polymer. The nanofibers carry the polymer/nucleic acid complexes, wherein the non-viral transfection agent is advantageously produced by means of electrospinning. The cationic polymer is favorably a polyimine or polyethyleneimine and can be modified with one or more hydrophilic polymers coupled thereto. It can also be advantageous to couple the cationic polymer with one or more carbohydrates and/or with a receptor-specific ligand. The nucleic acid is a DNA or an RNA, or a DNA or RNA derivative, advantageously a therapeutically active nucleic acid. The nanofibers are composed of biodegradable, biocompatible polymers. The nanofibers or the entire transfection agent can be provided with a polymer coating. A method for producing a non-viral transfection agent comprises the following steps: providing the polymer/nucleic acid complex, producing a spinning solution containing the polymer/nucleic acid complexes, and electrospinning. | 04-05-2012 |
20120270942 | Spreading Active Agricultural Agents - Disclosed herein is a device for the application of agricultural active agents, wherein the device is suitable to be brought to the site of action in a manner temporally and spatially separated from the production process, and comprises a dispenser and non-water-soluble nanofibers and/or mesofibers charged with agricultural active agents. The polymers from which the nanofibers and/or mesofibers are made are preferably biodegradable. The agricultural active agents are selected from fungicides, herbicides, batericides, plant growth regulators and plant nutrients. These are preferably pheromones, kairomones and signaling substances. Furthermore, a method for the production of this device is disclosed, wherein the nanofibers and/or mesofibers charged with active agents are produced via electrospinning. The device is suitable to be used to bring agricultural active agents to the site of action in a manner temporally and spatially separated from the production of this device. The application is suitable to be carried out mechanically or automatically. This is preferably agricultural land used for fruit growing, viticulture, gardening or a commercial row crop. The device according to the present invention is particularly suitable to be used for the regulation of arthropods. | 10-25-2012 |