Patents by Inventor Rudolf Nastke
Rudolf Nastke has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6861145Abstract: This invention relates to micro-encapsulated particles of solid matter and a quasi-continuous method for producing the same, especially those having water-insoluble characteristics or a hydrophobic form, taking into careful consideration ecologically and economically favorable ways of recycling the media used, and the resulting smallest possible amount of waste products such as waste water and polymer residues, while simultaneously ensuring that even exposed parts of the solid bodies are coated, such as crystal tips and grooves, which are insufficiently coated using standard methods due to the hydrodynamic conditions on these areas.Type: GrantFiled: October 2, 2001Date of Patent: March 1, 2005Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschubg E.V.Inventors: Rudolf Nastke, Gerald Rafler
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Publication number: 20040175494Abstract: Micro-encapsulated particles of solid material are described and a quasi-continuous method for the production thereof, in particular those with a water-insoluble character or in a hydrophobised form taking into account in particular an ecologically and economically favourable recycling of the used media and the resultant smallest possible amount of waste products, such as waste water, polymer residues inter alia while simultaneously ensuring the coating even of exposed parts of the solid bodies, such as crystal tips, grooves and the like which, due to the hydrodynamic conditions at these points, can only be coated inadequately with standard methods.Type: ApplicationFiled: April 30, 2003Publication date: September 9, 2004Inventors: Rudolf Nastke, Gerald Rafler
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Patent number: 6429165Abstract: A polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active material and a process for producing molded bodies from this material. An objective was to develop a polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active material which is capable of forming an open-pore and sorptive foamed body at increased temperatures while not reducing the specific surface of the active material and with a binding effect only during the mixing and processing phases, as well as a process for producing molded bodies from this material. This objective was met by mixing and processing an adsorptive, absorptive, chemisorptive, or catalytically active fine-grained material together with a finely particulate, meltable polyethylene with the addition of a binding agent having an oligocondensate basis.Type: GrantFiled: October 27, 1999Date of Patent: August 6, 2002Assignee: Auergesellschaft GmbHInventors: Rudolf Nastke, Gerald Rafler, Helmut Remde, Thomas Krugerke, Gabriele Stadermann, Jannett Kohls, Martin Kurth, Dieter Lubkoll
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Patent number: 6083439Abstract: A polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active material and a process for producing molded bodies from this material. An objective was to develop a polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active material which is capable of forming an open-pore and sorptive foamed body at increased temperatures while not reducing the specific surface of the active material and with a binding effect only during the mixing and processing phases, as well as a process for producing molded bodies from this material. This objective was met by mixing and processing an adsorptive, absorptive, chemisorptive, or catalytically active fine-grained material together with a finely particulate, meltable polyethylene with the addition of a binding agent having an oligocondensate basis.Type: GrantFiled: September 25, 1998Date of Patent: July 4, 2000Assignee: Auergesellschaft GmbHInventors: Rudolf Nastke, Gerald Rafler, Helmut Remde, Thomas Krugerke, Gabriele Stadermann, Jannett Kohls, Martin Kurth, Dieter Lubkoll
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Patent number: 5908632Abstract: The invention relates to a process for encapsulating biologically active compounds in the form of substantially spherical microparticles, comprising the steps ofa) preparing an aqueous solution of surfactants, catalysts and monomers or prepolymers which are suitable for forming a crosslinked polycondensate,b) forming an emulsion of the substantially water-insoluble biologically active compound or mixture thereof in the solution a) by adding said solution under high shear force, andc) forming a solid capsule wall around the biologically active compound or mixture thereof by heating the reaction mixture to a temperature at which the crosslinking reaction tales place,which process comprises fusing the biologically active compound or mixture thereof and adding the melt to the aqueous reaction mixture at a temperature which is higher than the temperature of the reaction mixture.Type: GrantFiled: January 21, 1997Date of Patent: June 1, 1999Assignee: Novartis CorporationInventors: Rudolf Nastke, Ernst Neuenschwander
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Patent number: 5866202Abstract: There is described a method of manufacturing finely-particulate polymeric terials with metallized surfaces. For this purpose, firstly finely-particulate aminoplasts are synthesized from aminoplast precondensates by polycondensation, in the form of microcapsules, microspheres, hollow spheres, compact and/or porous powder, and are then in a known way sensitized, activated and finally provided with a metallized surface. The surface metallization is effected in a currentless manner and may be subsequently electrolytically reinforced.Type: GrantFiled: May 6, 1996Date of Patent: February 2, 1999Assignee: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.Inventors: Rudolf Nastke, Gerald Rafler
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Patent number: 5788991Abstract: One object of the invention, therefore, is to provide encapsulated biologically active solid microparticle agglomerates, each agglomerate comprising eitherIi) at least two closely associated microparticles, each microparticle being coated partially or completely by at least one discrete layer of a polymer, andii) at least one outer discrete coating layer of the same polymer which envelops the coated microparticles to form an agglomerate of closely associated microparticles, orIIi) a cluster of at least two closely associated microparticles, each microparticle being coated partially or completely by at least one layer of a polymer, the microparticles adhering together through the polymer to form said cluster, andii) at least one outer discrete coating layer of the same polymer which envelops said cluster to form a discrete agglomerate, wherein in types I and II an inter-phase boundary is formed between each particle and the first coating layer, between individual coating layers and between the outer agglomeratType: GrantFiled: September 29, 1995Date of Patent: August 4, 1998Assignee: Novartis CorporationInventors: Rudolf Nastke, Ernst Neuenschwander, Andreas Leonhardt
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Patent number: 5773030Abstract: Internally cross-linked albumin microspheres their surface being modified by attachment of polyoxy(C.sub.-)alkylene chains having a terminal ether group, especially such containing pharmacologically active agents, usable for pharmaceutical compositions.Type: GrantFiled: September 29, 1995Date of Patent: June 30, 1998Assignee: Novartis CorporationInventors: Rudolf Nastke, Ernst Neuenschwander, Andreas Leonhardt
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Patent number: 5693743Abstract: The invention relates to aminoplastics, which are created by reacting comnds that contain amide groups with glutaric dialdehyde, and to a process for their preparation and to their use. The aminoplastic according to the invention is free of formaldehyde and can be hardened without difficulty by acidic catalysis or thermal processes. The aminoplastic is prepared by polycondensation of compounds that contain amide groups with glutaric dialdehyde in aqueous solution.Type: GrantFiled: October 10, 1995Date of Patent: December 2, 1997Assignee: Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung e.V.Inventors: Rudolf Nastke, Gerald Rafler
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Patent number: 5662916Abstract: The invention relates to a novel formulation of per se known pesticides in the form of microcapsules, to a process for the preparation of microcapsules and to the use of said microcapsules for controlling weeds, plant diseases, insects and representatives of the order Acarina.Type: GrantFiled: May 26, 1995Date of Patent: September 2, 1997Assignee: Ciba-Geigy CorporationInventors: Rudolf Nastke, Andreas Leonhardt, Ernst Neuenschwander
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Patent number: 5576009Abstract: A process for the preparation of microcapsules, which comprises rapidly stirring an aqueous solution of a precondensate of urea and a dialdehyde in the molar ratio of urea to dialdehyde of 1:1 to 1:2.5, into an acidified aqueous dispersion of a water-immiscible pesticide or a readily volatile water-immiscible solvent.Type: GrantFiled: August 22, 1994Date of Patent: November 19, 1996Assignee: Ciba-Geigy CorporationInventors: Rudolf Nastke, Andreas Leonhardt, Ernst Neuenschwander