Patents by Inventor Volker Thole
Volker Thole 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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Publication number: 20230130260Abstract: A process for producing a lignocellulose-containing, plastic-coated and printable molding (26), in particular in sheet form, comprising the steps of: a) producing a layer (A, B?) containing lignocellulose-containing particles according to the shape of the molding to be produced (26); b) applying a layer (C) of particles containing electron beam-reactive thermoplastic onto the layer produced according to the preceding feature; c) heating the layers (A, C) produced according to the preceding features such that thermoplastic particles melt into the layer containing lignocellulose-containing particles (Cs); d) pressing the layers heated according to feature (1c); and e) irradiating the layers pressed according to feature (1d) with electrons in the energy range from 1 MeV to 10 MeV. The process is for example elucidated with reference to an MDF sheet one-sidedly provided with a polymer layer.Type: ApplicationFiled: March 24, 2020Publication date: April 27, 2023Applicants: PolymerTrend LLC, MZI Institut für VerfahrenstechnikInventors: Max ZAHER, Volker THOLE
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Publication number: 20220033656Abstract: The invention relates to a method and devices for producing products (65) by using cellulose-containing particles, with which the following steps are carried out: a) irradiating the particles with electrons in the energy range >1 MeV: b) mixing the irradiated particles with electron-beam-reactive powder of a synthetic polymer, in particular a thermoplastic, having powder particle sizes <2000 micrometres and/or with a liquid electron-beam-reactive synthetic or bio-based polymer; c) forming the mixture created in a way corresponding to the form of the product to be produced, in particular forming it into a nonwoven (56): d) heating the formed mixture to 100-180° C.; e) pressing the formed mixture without heating; and f) irradiating the pressed mixture with electrons in the energy range of 1 MeV to 10 Me V and also with appropriately chosen dosages and dosing rates.Type: ApplicationFiled: September 17, 2019Publication date: February 3, 2022Applicants: POLYMERTREND LLC., MZI INSTITUT FUR VERFAHRENSTECHNIKInventors: Max ZAHER, Wolfgang SCHWARZ, Volker THOLE
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Patent number: 10619303Abstract: The invention relates to a method for production of an auto-adhesively bonded, porous, pressure-resistant molding made from comminuted lignocellulosic fibrous materials that are processed at temperatures between 120° C. and 180° C. and a pressure between 2 bar and 8 bar to yield a fiber suspension that is subsequently filled into a mold or applied to a carrier and dried without the addition of a synthetic binder.Type: GrantFiled: May 21, 2018Date of Patent: April 14, 2020Assignee: Fraunhofer-Gesselschaft zur Förderung der angewandten Forschung e.V.Inventors: Volker Thole, Julia Belda, Frauke Bunzel, Nina Ritter
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Patent number: 10179345Abstract: The invention relates to a method for producing an at least two-layered board. The board has a carrier layer, which consists at least partly of wood or lignocellulose-containing particles or fibers, and at least one coating, which consists of a WPC material and which is arranged on at least one face of the carrier layer. The method has the following steps: providing a finished carrier board (30) which forms the carrier layer; providing a WPC coating material, for example in the form of a granulate (32), on at least one of the two surfaces of the carrier board (30); and pressing the WPC coating material and the carrier board (30) under the influence of heat and pressure.Type: GrantFiled: March 3, 2014Date of Patent: January 15, 2019Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.Inventors: Volker Thole, Arne Schirp, Rainer Henniger
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Publication number: 20180334777Abstract: The invention relates to a method for production of an auto-adhesively bonded, porous, pressure-resistant molding made from comminuted lignocellulosic fibrous materials that are processed at temperatures between 120° C. and 180° C. and a pressure between 2 bar and 8 bar to yield a fiber suspension that is subsequently filled into a mold or applied to a carrier and dried without the addition of a synthetic binder.Type: ApplicationFiled: May 21, 2018Publication date: November 22, 2018Inventors: Volker Thole, Julia Belda, Frauke Bunzel, Nina Ritter
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Publication number: 20160001323Abstract: The invention relates to a method for producing an at least two-layered board. The board has a carrier layer, which consists at least partly of wood or lignocellulose-containing particles or fibers, and at least one coating, which consists of a WPC material and which is arranged on at least one face of the carrier layer. The method has the following steps: providing a finished carrier board (30) which forms the carrier layer; providing a WPC coating material, for example in the form of a granulate (32), on at least one of the two surfaces of the carrier board (30); and pressing the WPC coating material and the carrier board (30) under the influence of heat and pressure.Type: ApplicationFiled: March 3, 2014Publication date: January 7, 2016Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.Inventors: Volker THOLE, Arne SCHIRP, Rainer HENNIGER
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Publication number: 20140256859Abstract: The invention relates to a wood material product and a method for producing wood material products from particles containing lignocellulose and adhesives containing formaldehydes, which are intermixed and fed to a forming process after mixing. A zeolite is added to the mixture of adhesives and particles containing lignocellulose.Type: ApplicationFiled: May 22, 2014Publication date: September 11, 2014Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Jan Gunschera, Volker Thole, Doreen Markewitz, Katrin Bokelmann, Thangaraj Selvam, Annett Halbhuber
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Patent number: 8822574Abstract: The invention relates to a wood material product and a method for producing wood material products from particles containing lignocellulose and adhesives containing formaldehydes, which are intermixed and fed to a forming process after mixing. A zeolite is added to the mixture of adhesives and particles containing lignocellulose.Type: GrantFiled: April 30, 2010Date of Patent: September 2, 2014Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Jan Gunschera, Volker Thole, Doreen Markewitz, Katrin Bokelmann, Thangaraj Selvam, Annett Halbhuber
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Publication number: 20120108707Abstract: The invention relates to a wood material product and a method for producing wood material products from particles containing lignocellulose and adhesives containing formaldehydes, which are intermixed and fed to a forming process after mixing. A zeolite is added to the mixture of adhesives and particles containing lignocellulose.Type: ApplicationFiled: April 30, 2010Publication date: May 3, 2012Inventors: Jan Gunschera, Volker Thole, Doreen Markewitz, Katrin Bokelmann, Thangaraj Selvam, Annett Halbhuber
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Patent number: 7858005Abstract: The invention relates to a method for the production of fire-resistant dense moulded pieces made from wood fibers, mixed with water glass as a binding flame-protection agent at a temperature above ambient temperature. A non-woven fiber formed from the above mixture is compressed to a density of <350 kg/m3 and then the hardening of the binding flame protection agent carried out in a closed press in the compressed state at temperatures above 80° C.Type: GrantFiled: September 2, 2003Date of Patent: December 28, 2010Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.Inventors: Volker Thole, Dirk Kruse
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Patent number: 7682534Abstract: A method for the production of a carbon or a ceramic component based on carbon, using a cellulose-containing semi-finished molded piece which is pyrolyzed. According to the invention, homogeneous large-size ceramic components may be produced, whereby a cellulose-containing, semi-finished molded piece containing fibers, chips or strands of homogeneous density distribution and homogeneous structure is used as semi-finished molded piece and is pyrolyzed in non-oxidizing gas atmospheres.Type: GrantFiled: December 12, 2002Date of Patent: March 23, 2010Assignees: Schunk Kohlenstofftechnik GmbH, Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V.Inventors: Stefan Siegel, Gottfried Boden, Uwe Petasch, Volker Thole, Roland Weiss, Thorsten Scheibel, Martin Henrich, Marco Ebert, Martin Kühn, Andreas Lauer, Gotthard Nauditt
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Patent number: 7399718Abstract: The invention relates to a multilayer material comprising (a) a first layer that consists of plaster or that substantially consists of plaster, and (b) at least one second layer, comprising a sandwich textile fiber material. The fibers of said material are interlinked in a mechanically stable manner, are incombustible and weather-proof and the interspaces are filled with a finely porous material. The second layer has a diffusion-equivalent air layer thickness of not more than 2.0 m and is water-impermeable at a water pressure of at least 100 mm water column. The inventive material can be used outdoors due to its properties. The invention further relates to methods for producing such a material.Type: GrantFiled: February 22, 2002Date of Patent: July 15, 2008Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Gert Neumann, Friedrich Raether, Holger Boese, Peter Loeschke, Volker Thole, Johann W. Herlyn, Heinz Sattler
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Publication number: 20060163769Abstract: The invention relates to a method for the production of fire-resistant dense moulded pieces made from wood fibres, mixed with water glass as a binding flame-protection agent at a temperature above ambient temperature. A non-woven fibre formed from the above mixture is compressed to a density of <350 kg/m3 and then the hardening of the binding flame protection agent carried out in a closed press in the compressed state at temperatures above 80° C.Type: ApplicationFiled: September 2, 2003Publication date: July 27, 2006Inventors: Volker Thole, Dirk Kruse
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Publication number: 20050151305Abstract: A method for the production of a carbon or a ceramic component based on carbon, using a cellulose-containing semi-finished molded piece which is pyrolyzed. According to the invention, homogeneous large-size ceramic components may be produced, whereby a cellulose-containing, semi-finished molded piece containing fibers, chips or strands of homogeneous density distribution and homogeneous structure is used as semi-finished molded piece and is pyrolyzed in non-oxidizing gas atmospheres.Type: ApplicationFiled: December 12, 2002Publication date: July 14, 2005Inventors: Stefan Siegel, Gottfried Boden, Uwe Petasch, Volker Thole, Roland Weiss, Thorsten Scheibel, Martin Henrich, Marco Ebert, Martin Kuhn, Andreas Lauer, Gotthard Nauditt
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Publication number: 20040072487Abstract: The invention relates to a multilayer material comprising (a) a first layer that consists of plaster or that substantially consists of plaster, and (b) at least one second layer, comprising a sandwich textile fiber material. The fibers of said material are interlinked in a mechanically stable manner, are incombustible and weather-proof and the interspaces are filled with a finely porous material. The second layer has a diffusion-equivalent air layer thickness of not more than 2.0 m and is water-impermeable at a water pressure of at least 100 mm water column. The inventive material can be used outdoors due to its properties. The invention further relates to methods for producing such a material.Type: ApplicationFiled: August 21, 2003Publication date: April 15, 2004Inventors: Gert Neumann, Friedrich Raether, Holger Boese, Peter Loeschke, Volker Thole, Johann W. Herlyn, Heinz Sattler
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Patent number: 5942174Abstract: A method of fabricating a particle board from ligno-cellulose containing ticles and an organic binder material, including initially forming a web of binder material coated particles, spraying of predetermined quantities of water on the surfaces of the web, compressing the web to a first thickness between heated press platens, increasing the spacing between the press platens to a dimension greater than the first thickness and rapidly raising the temperature in the center of the web by more than 15.degree. C.Type: GrantFiled: October 1, 1997Date of Patent: August 24, 1999Assignee: Fraunhofer-Gosellschaft zur Foerderung der angewandten Forschung e. V.Inventors: Volker Thole, Jadranko Jahic
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Patent number: 5846317Abstract: A method of controlling the ratio of hydration time (HT) to open time (OT) in the manufacture of composite materials from a mixture containing hydratable calcium sulphate such as gypsum binders, aggregates, fibers, water additives and other additives is disclosed. The method includes adding a retarder-accelerator combination such as Retardan and potassium sulphate to the mixture and applying pressure. The retarder-accelerator combination and application of pressure provide advantageous reduction in the ratio HT:OT. More particularly, HT:OT can be reduced to less than 1.Type: GrantFiled: March 20, 1996Date of Patent: December 8, 1998Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung e.v.Inventors: Heinz Sattler, Volker Thole, Bernhard Schmelmer
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Patent number: 5536533Abstract: A process for producing fibrous composite materials from feed stock formed reliminarily from a gypsum binder and chopped cellulose fibers, and saturating the mixture with water to the extent of at least 1.2 times its normal hydrated state, and beating the material to provide a fleece that is then spread on a flat surface and subjected to pressure for a sufficient length of time to drive out a substantial portion of the moisture from the product. The compression step is carried out long enough to achieve a bulk density of approximately 9/10 the dry bulk density of the components prior to hydration.Type: GrantFiled: March 19, 1993Date of Patent: July 16, 1996Assignees: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V., Goldbach GmbHInventors: Heinz Sattler, Volker Thole, Sebald Pallhorn, Bernhard Schmelmer
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Patent number: 5185115Abstract: A flat extrusion method for manufacturing especially multilayer panels and device for working the method. The method consists of the following method steps: simultaneous addition of mixtures by mixing and spreading devices (1) into a perpendicular conically tapered shaft (A, B) formed by circulating compression belts (13, 14); compression of the mixture by the conical design of shaft (B), followed by traversing a section (C) in which the compression belts are arranged parallel to one another and at a distance which corresponds to the thickness of the finished panel strand; curing of the mixture in the downstream calibrating section (3).Type: GrantFiled: June 13, 1991Date of Patent: February 9, 1993Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung e.V.Inventor: Volker Thole
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Patent number: 5135693Abstract: The present invention is directed to improvements in apparatus and proces for the continuous production of inorganically bonded materials, the apparatus and process providing a pressureless transition zone without the action of pressure on a continuous sheet of material arranged between a high-pressure compression unit and the calibrating unit, and where the calibrating unit is immediately preceded by a recompression unit, which applies an active pressure on the continuous sheet of material after it passes through the pressureless zone and before it enters the calibrating unit and where this active pressure is sufficiently high that the nominal thickness of the continuous sheet of material is equal to or less than the finished continuous sheet of material and nominal density of the continuous sheet of material are equal to or greater than the density of the finished continuous sheet of material.Type: GrantFiled: August 22, 1990Date of Patent: August 4, 1992Assignee: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.Inventors: Thomas Hilbert, Volker Thole, Karsten Lempfer