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).

  • Publication number: 20230130260
    Abstract: 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: Application
    Filed: March 24, 2020
    Publication date: April 27, 2023
    Applicants: PolymerTrend LLC, MZI Institut für Verfahrenstechnik
    Inventors: Max ZAHER, Volker THOLE
  • Publication number: 20220033656
    Abstract: 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: Application
    Filed: September 17, 2019
    Publication date: February 3, 2022
    Applicants: POLYMERTREND LLC., MZI INSTITUT FUR VERFAHRENSTECHNIK
    Inventors: Max ZAHER, Wolfgang SCHWARZ, Volker THOLE
  • Patent number: 10619303
    Abstract: 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: Grant
    Filed: May 21, 2018
    Date of Patent: April 14, 2020
    Assignee: Fraunhofer-Gesselschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Volker Thole, Julia Belda, Frauke Bunzel, Nina Ritter
  • Patent number: 10179345
    Abstract: 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: Grant
    Filed: March 3, 2014
    Date of Patent: January 15, 2019
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Volker Thole, Arne Schirp, Rainer Henniger
  • Publication number: 20180334777
    Abstract: 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: Application
    Filed: May 21, 2018
    Publication date: November 22, 2018
    Inventors: Volker Thole, Julia Belda, Frauke Bunzel, Nina Ritter
  • Publication number: 20160001323
    Abstract: 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: Application
    Filed: March 3, 2014
    Publication date: January 7, 2016
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Volker THOLE, Arne SCHIRP, Rainer HENNIGER
  • Publication number: 20140256859
    Abstract: 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: Application
    Filed: May 22, 2014
    Publication date: September 11, 2014
    Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Jan Gunschera, Volker Thole, Doreen Markewitz, Katrin Bokelmann, Thangaraj Selvam, Annett Halbhuber
  • Patent number: 8822574
    Abstract: 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: Grant
    Filed: April 30, 2010
    Date of Patent: September 2, 2014
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Jan Gunschera, Volker Thole, Doreen Markewitz, Katrin Bokelmann, Thangaraj Selvam, Annett Halbhuber
  • Publication number: 20120108707
    Abstract: 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: Application
    Filed: April 30, 2010
    Publication date: May 3, 2012
    Inventors: Jan Gunschera, Volker Thole, Doreen Markewitz, Katrin Bokelmann, Thangaraj Selvam, Annett Halbhuber
  • Patent number: 7858005
    Abstract: 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: Grant
    Filed: September 2, 2003
    Date of Patent: December 28, 2010
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
    Inventors: Volker Thole, Dirk Kruse
  • Patent number: 7682534
    Abstract: 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: Grant
    Filed: December 12, 2002
    Date of Patent: March 23, 2010
    Assignees: 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
  • Patent number: 7399718
    Abstract: 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: Grant
    Filed: February 22, 2002
    Date of Patent: July 15, 2008
    Assignee: 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
  • Publication number: 20060163769
    Abstract: 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: Application
    Filed: September 2, 2003
    Publication date: July 27, 2006
    Inventors: Volker Thole, Dirk Kruse
  • Publication number: 20050151305
    Abstract: 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: Application
    Filed: December 12, 2002
    Publication date: July 14, 2005
    Inventors: Stefan Siegel, Gottfried Boden, Uwe Petasch, Volker Thole, Roland Weiss, Thorsten Scheibel, Martin Henrich, Marco Ebert, Martin Kuhn, Andreas Lauer, Gotthard Nauditt
  • Publication number: 20040072487
    Abstract: 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: Application
    Filed: August 21, 2003
    Publication date: April 15, 2004
    Inventors: Gert Neumann, Friedrich Raether, Holger Boese, Peter Loeschke, Volker Thole, Johann W. Herlyn, Heinz Sattler
  • Patent number: 5942174
    Abstract: 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: Grant
    Filed: October 1, 1997
    Date of Patent: August 24, 1999
    Assignee: Fraunhofer-Gosellschaft zur Foerderung der angewandten Forschung e. V.
    Inventors: Volker Thole, Jadranko Jahic
  • Patent number: 5846317
    Abstract: 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: Grant
    Filed: March 20, 1996
    Date of Patent: December 8, 1998
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung e.v.
    Inventors: Heinz Sattler, Volker Thole, Bernhard Schmelmer
  • Patent number: 5536533
    Abstract: 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: Grant
    Filed: March 19, 1993
    Date of Patent: July 16, 1996
    Assignees: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V., Goldbach GmbH
    Inventors: Heinz Sattler, Volker Thole, Sebald Pallhorn, Bernhard Schmelmer
  • Patent number: 5185115
    Abstract: 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: Grant
    Filed: June 13, 1991
    Date of Patent: February 9, 1993
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung e.V.
    Inventor: Volker Thole
  • Patent number: 5135693
    Abstract: 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: Grant
    Filed: August 22, 1990
    Date of Patent: August 4, 1992
    Assignee: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.
    Inventors: Thomas Hilbert, Volker Thole, Karsten Lempfer