Patents Assigned to Nitrochemie Aschau GmbH
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Patent number: 11898833Abstract: A case jacket made of a felted, in particular combustible fibrous material, comprising a cylindrical case jacket portion and a calotte-shaped case bottom which is connected to an end of the cylindrical case jacket portion, wherein the bottom-side end of the case jacket portion has a first inside diameter and a first outside diameter, and wherein the case bottom has an annular connecting edge towards the case jacket portion, which has a second inside diameter that is smaller than the first inside diameter, and a second outside diameter which is smaller than the second outside diameter, includes a conical connecting portion whose one end has the first inside diameter and the first outside diameter and is connected to the bottom-side end of the case jacket portion, and whose other end has the second inside diameter and the second outside diameter and is connected to the connecting edge of the case bottom, wherein the angle of inclination of the inner wall and the angle of inclination of the outer wall of the conType: GrantFiled: February 10, 2021Date of Patent: February 13, 2024Assignees: Nitrochemie Aschau GmbH, Rheinmetall Waffe Munition GmbHInventors: Jens Oltmanns, Ulrich Focken, Dirk Brachmann, Stephan Thiesen, Michael Vagedes, Luca Linus Schnackenberg
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Patent number: 11879713Abstract: The disclosure relates to an insert (5) made of a textile fabric for being received in a jacket wall of a cylindrical case (6) made of a combustible, felted fibrous material, wherein in particular embodiments the textile fabric includes one, several, or a plurality of yarns which along a longitudinal direction (L) of the insert form a plurality of mesh rows (18) which each include a plurality of meshes (19, 20, 21) that extend in a circumferential direction (U) of the insert.Type: GrantFiled: September 30, 2020Date of Patent: January 23, 2024Assignees: Nitrochemie Aschau GmbH, Teccno Tex GmbHInventors: Alexander Huber, Andreas Hämmerle, Jens Oltmanns, Ulrich Focken, Walter Lebacher
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Patent number: 11364161Abstract: The invention relates to a curable composition, containing (A) at least one polyorganosiloxane, which has at least one hydroxy group bound to a silicon atom, (B) at least one silane of the formula (1): Si(R1)m(R2)n(R3)4?(m+n)??(1), as defined herein, (C) at least one aminosilane, and (D) at least one tin compound, wherein the composition is free of epoxysilane and the molar ratio of the aminosilane to the tin compound is 1:1 to 50:1, as well as to the preparation and use thereof.Type: GrantFiled: August 25, 2020Date of Patent: June 21, 2022Assignees: Henkel AG & Co. KGaA, Nitrochemie Aschau GmbHInventors: Andrea Gutacker, Johann Klein, Helene Boudet, Adrian Duracu, Sebastian Kapusta
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Publication number: 20210324195Abstract: A composition containing a curing agent for silicone rubber masses and an organosilane, in particular a heterocyclic organosilane, as well as sealing agents, adhesives or coating agents containing this composition, the use of this composition as a sealing agent, adhesive or coating agent and the use of an organosilane according to the invention, in particular a heterocyclic organosilane as a water scavenger, alcohol scavenger and/or hydroxide ion scavenger and, after activation, as an adhesion promoter in silicone rubber masses is presented and described.Type: ApplicationFiled: August 20, 2019Publication date: October 21, 2021Applicant: Nitrochemie Aschau GmbHInventors: Klaus Langerbeins, Alexis Krupp, Ulrich Pichl
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Patent number: 9499670Abstract: The present invention relates to a catalyst for the cross-linking of silicone rubber materials. In particular, the present invention provides a composition for the production of a silicone rubber material, wherein the composition comprises a catalyst, which comprises at least two compounds, which are different from each other and which are selected independently of each other from metal salts of carboxylic acids. In addition, the present invention provides a use of the catalyst according to the invention for the cross-linking of a silicone rubber material, as well as a use of the composition according to the invention for the production of a silicone rubber material, especially for the use as a sealant, an adhesive, or a coating agent.Type: GrantFiled: March 4, 2014Date of Patent: November 22, 2016Assignee: Nitrochemie Aschau GmbHInventors: Ulrich Pichl, Gerhard Schmidt, Theodor Ederer, Thomas Knott, Karl-Christian Bart, Jorg Lippstreu
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Patent number: 9481817Abstract: The present invention relates to a catalyst for the cross-linking of silicone rubber materials with a cross-linker on the basis of lactate. In particular, the present invention provides a composition for the production of a silicone rubber material with a cross-linker on the basis of lactate, wherein the composition comprises a catalyst, which comprises at least two compounds, which are different from each other and which are selected independently of each other from metal salts of carboxylic acids. In addition, the present invention provides a method for the production of such a composition, as well as a use of the catalyst for the cross-linking of a silicone rubber material, in particular for cross-linking a silicone rubber material with a cross-linker on the basis of lactate, as well as a use of the composition of the present invention for the production of a silicone rubber material, in particular for use as a sealant, an adhesive, or a coating agent.Type: GrantFiled: March 4, 2014Date of Patent: November 1, 2016Assignee: Nitrochemie Aschau GmbHInventors: Ulrich Pichl, Gerhard Schmidt, Theodor Ederer, Thomas Knott, Karl-Christian Bart, Jorg Lippstreu
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Publication number: 20160017195Abstract: The present invention relates to a catalyst for the cross-linking of silicone rubber materials with a cross-linker on the basis of lactate. In particular, the present invention provides a composition for the production of a silicone rubber material with a cross-linker on the basis of lactate, wherein the composition comprises a catalyst, which comprises at least two compounds, which are different from each other and which are selected independently of each other from metal salts of carboxylic acids. In addition, the present invention provides a method for the production of such a composition, as well as a use of the catalyst for the cross-linking of a silicone rubber material, in particular for cross-linking a silicone rubber material with a cross-linker on the basis of lactate, as well as a use of the composition of the present invention for the production of a silicone rubber material, in particular for use as a sealant, an adhesive, or a coating agent.Type: ApplicationFiled: March 4, 2014Publication date: January 21, 2016Applicant: Nitrochemie Aschau GmbHInventors: Ulrich Pichl, Gerhard Schmidt, Theodor Ederer, Thomas Knott, Karl-Christian Bart, Jörg Lippstreu
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Patent number: 8776690Abstract: The invention relates to a combustible sleeve for accommodating propellant charge powder, to munitions designed using such a sleeve, and to a production method for such sleeves. The sleeve according to the invention is designed for accommodating propellant charge powder and has a jacket wall made of combustible felted fibrous material and an inlay of intersecting threads in the jacket wall. The threads are disposed therein at a distance from one another such that felted fibrous material reaches through the regions between the threads. The method comprises the following steps: preparing a jacket wall made of combustible felted fibrous material and inserting an inlay made of intersecting threads into the jacket wall. The threads are disposed therein at a distance from one another such that the felted fibrous material extends through the regions between the threads.Type: GrantFiled: August 3, 2010Date of Patent: July 15, 2014Assignee: Nitrochemie Aschau GmbHInventors: Walter Lebacher, Alexander Huber
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Patent number: 8763534Abstract: To increase the function and safety of a weapon, it is proposed that the molded part, as connecting site particularly between a projectile and a preferably combustible sleeve containing a driving mechanism, be constructed in such a way that, in a predefined region, said molded part has a felt with an energetic material and/or an inert material.Type: GrantFiled: December 7, 2007Date of Patent: July 1, 2014Assignee: Nitrochemie Aschau GmbHInventor: Walter Lebacher
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Patent number: 7707940Abstract: The invention relates to a connecting mechanism for a multiple-part munition (1), for example for artillery charges. It is proposed that a multiple-part munition (1) be connected by means of a simple plug connection to at least two casing elements (2) which can be connected to one another and are arranged axially one behind the other, of a propellent-charge casing (10), with the casing elements (2) having a taper (3) and/or a corresponding opening (4) on their mutually facing end faces or tail faces, and the tapers (3) and/or the inner wall (7) of the openings (4) having projections (8) so that they can be connected to one another with a force fit by pushing them together.Type: GrantFiled: May 17, 2006Date of Patent: May 4, 2010Assignee: Nitrochemie Aschau GmbHInventor: Walter Lebacher
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Publication number: 20060266451Abstract: The proposed propellant powder exhibits a temperature-independent burning behavior and high ballistic stability. The production process starts with a perforated bulk powder grain, which is processed inside a mixing apparatus with a solid material, a plug-stabilizing moderator or deterrent (if necessary also a radical initiator) and a low-viscous liquid. With a minimum amount of solid material, moderator or deterrent and liquid and because of the continuous mixing, the form function is influenced in such a way that the gas-formation rate is practically independent of the propellant powder temperature. As a result, the muzzle energy at the normal temperature and, above all, at a low deployment temperature can be increased markedly as compared to that of a standard propellant powder.Type: ApplicationFiled: February 22, 2006Publication date: November 30, 2006Applicants: Nitrochemie Wimmis AG, Nitrochemie Aschau GmbHInventors: Markus Fahrni, Beat Vogelsanger, Alfred Steinmann, Bruno Ossola, Ulrike Jeck-Prosch, Alexander Huber, Kurt Ryf
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Patent number: 7051658Abstract: The proposed propellant powder exhibits a temperature-independent burning behavior and high ballistic stability. The production process starts with a perforated bulk powder grain, which is processed inside a mixing apparatus with a solid material, a plug-stabilizing moderator or deterrent (if necessary also a radical initiator) and a low-viscous liquid. With a minimum amount of solid material, moderator or deterrent and liquid and because of the continuous mixing, the form function is influenced in such a way that the gas-formation rate is practically independent of the propellant powder temperature. As a result, the muzzle energy at the normal temperature and, above all, at a low deployment temperature can be increased markedly as compared to that of a standard propellant powder.Type: GrantFiled: March 13, 2002Date of Patent: May 30, 2006Assignees: Nitrochemie Wimmis AG, Nitrochemie Aschau GmbHInventors: Markus Fahrni, Beat Vogelsanger, Alfred Steinmann, Bruno Ossola, Ulrike Jeck-Prosch, Alexander Huber, Kurt Ryf
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Patent number: 6910422Abstract: A method for producing a combustible cartridge case for cartridge ammunition, wherein an aqueous pulp containing nitrocellulose and cellulose fibers is produced, a raw felt is produced from the pulp through draining the fiber material on a sieve, and the raw felt is then compressed and shaped. To produce combustible cartridge cases possessing a greater mechanical stability than known cartridge cases of comparable dimensions, additives are mixed into the aqueous pulp prior to the production of the raw felt, to increase the stability of the fiber composite after the compressing process, so the breaking strength and the breaking elongation, and the resistance to tear propagation are increased. The additive is preferably a polymer material having a hydrophilic character and a high content of OH, NH2 and/or similar functional groups, and is capable of forming chemical bonds and/or engaging in intermolecular interaction with the cellulose or nitrocellulose molecules.Type: GrantFiled: December 13, 2002Date of Patent: June 28, 2005Assignee: Nitrochemie Aschau GmbHInventors: Manfred Haider, Alexander Huber, Annett Küchler, Hans-Geroge Völkel
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Patent number: 6354218Abstract: A propellant system for launching a large-caliber projectile includes a propellant having at least three partial charges. The first partial charge is adapted to acceleration requirements of the projectile; the second partial charge has a higher combustion velocity than that of the first partial charge; and the third partial charge has a lower combustion velocity than that of the first partial charge. The propellant system further includes an electric energy supply and control device connected to the propellant for igniting the propellant. The electric energy supply and control device has a plasma generator for affecting a combustion behavior of the propellant such as to obtain for said first partial charge, after ignition of the propellant, a maximum gas pressure level of always the same magnitude independently from an initial propellant temperature, and to obtain, for the third partial charge, a conversion such as to prolong the maximum gas pressure level in a predeterminable manner.Type: GrantFiled: July 29, 1999Date of Patent: March 12, 2002Assignees: Rheinmetall W & M GmbH, TZN Forschungs-und Entwicklungszentrum Unterlüss GmbH, Nitrochemie Aschau GmbHInventors: Thomas Weise, Hans Karl Haak, Paul Schaffers, Peter Lange