Patents by Inventor Thomas Buesgen

Thomas Buesgen 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: 20200055235
    Abstract: The invention relates to a method for producing a three-dimensional object by means of a powder-based additive production method from at least one first powdery material, wherein the at least one first powdery material comprises at least one first compound having a first reactive group a). The first reactive group a) is selected from the group consisting of an isocyanate group, a blocked isocyanate group, or a mixture thereof. The invention further relates to a component produced using the method according to the invention, and to powdery material that is suited for the method according to the invention.
    Type: Application
    Filed: May 9, 2018
    Publication date: February 20, 2020
    Inventors: Dirk Achten, Thomas Buesgen, Thomas Faecke, Bettina Mettmann, Joerg Buechner, Hans-Josef Laas, Ting Liu
  • Publication number: 20200047410
    Abstract: The present invention relates to a method for producing an object, comprising the step of producing the object according to an additive production process from a construction material, wherein the construction material comprises a mixture of a plurality of powdery thermoplastic materials which are different from one another due to at least one mechanical property and at least one thermoplastic material is a thermoplastic polyurethane material. The invention also relates to an object obtained according to said method.
    Type: Application
    Filed: April 23, 2018
    Publication date: February 13, 2020
    Inventors: Dirk ACHTEN, Thomas BÜSGEN, Bettina METTMANN, Michael KESSLER, Peter REICHERT, Roland WAGNER
  • Publication number: 20200009769
    Abstract: The invention relates to a method for producing an object comprising the the following steps: producing a shell, which surrounds a volume for holding a fluid, by means of an additive manufacturing method from a construction material; providing a reaction mixture comprising a polyisocyanate component and a polyol component in the volume and allowing the reaction mixture to react in the volume such that a polymer present at least partly in the volume is obtained. The reaction mixture has a setting time of ?2 minutes. An object that can be obtained by means of a method according to the invention comprises a shell, which defines a volume located within the shell, and a foam, which completely or partly fills the volume.
    Type: Application
    Filed: December 11, 2017
    Publication date: January 9, 2020
    Inventors: Dirk ACHTEN, Thomas BÜSGEN, Nicolas DEGIORGIO, Levent AKBAS, Bettina MEIER, Christoph TOMCZYK, Roland WAGNER, Rolf ALBACH
  • Publication number: 20190375153
    Abstract: The invention relates to a method for producing an at least partially coated object, comprising the step of producing the object from a construction material by means of an additive manufacturing method, the construction material comprising a thermoplastic polyurethane material. Following the production of the object, the method comprises the step of at least partially bringing a preparation into contact with the object, the preparation being selected from: an aqueous polyurethane dispersion; an aqueous dispersion of a polymer comprising OH groups, this dispersion also containing a compound comprising NCO groups; an aqueous preparation of a compound containing NCO groups, but not containing any polymers comprising OH groups; or a combination of at least two thereof. The invention also relates to an at least partially coated object that was obtained by a method according to the invention.
    Type: Application
    Filed: November 22, 2017
    Publication date: December 12, 2019
    Inventors: Dirk ACHTEN, Thomas BÜSGEN, Thomas MICHAELIS, Roland WAGNER, Bettina METTMANN, Levent AKBAS, Jürgen HÄTTIG, Arnaud GUEDOU
  • Publication number: 20190375150
    Abstract: The invention relates to a print head (100) for an additive fused deposition modelling method having a thermoplastic construction material, comprising:—at least one inlet (10) for receiving a construction material (11) into the print head;—at least one melt region, for melting the construction material (11), which is arranged downstream of the inlet (10) and is fluidically connected, at least temporarily, to the inlet (10); and—at least one first outlet (30) that is fludicially connected, at least temporarily, to the melt region (20), for discharging melted construction material (12) out of the melt region (29) at a first discharge rate; wherein—the print head (100) also comprises at least one second outlet (40) that is fluidically connected, at least temporarily, to the melt region (20) for discharging melted or non-melted construction material (11, 12) out of the melt region (20) at a second discharge rate; and—the first discharge rate can be influenced by a first discharge rate influencing device (50) for
    Type: Application
    Filed: February 27, 2018
    Publication date: December 12, 2019
    Applicant: Covestro Deutschland AG
    Inventors: Dirk ACHTEN, Thomas BÜSGEN, Levent AKBAS, Nicolas DEGIORGIO, Jonas KÜNZEL
  • Publication number: 20190367666
    Abstract: The present invention relates to polymerizable compositions which contain components that can be crosslinked both via isocyanurate bonds and by a radical reaction mechanism. The invention further relates to methods by way of which polymers can be produced from said compositions.
    Type: Application
    Filed: November 14, 2017
    Publication date: December 5, 2019
    Inventors: Jörg TILLACK, Dirk ACHTEN, Paul HEINZ, Richard MEISENHEIMER, Thomas BÜSGEN, Michael LUDEWIG, Christoph TOMCZYK, Roland WAGNER
  • Publication number: 20190367665
    Abstract: The present invention relates to polymerizable compositions which contain components that can be crosslinked both via isocyanurate bonds and by a radical reaction mechanism. The invention further relates to methods by way of which polymers can be produced from said compositions.
    Type: Application
    Filed: November 14, 2017
    Publication date: December 5, 2019
    Inventors: Paul HEINZ, Richard MEISENHEIMER, Jörg TILLACK, Dirk ACHTEN, Thomas BÜSGEN, Michael LUDEWIG, Christoph TOMCZYK, Roland WAGNER, Alisa KAYSER
  • Publication number: 20190357695
    Abstract: The present invention relates to novel anisotropic composite materials and processes for production thereof. The composite materials are based on the crosslinking of polyisocyanates and feature good weathering stability.
    Type: Application
    Filed: September 22, 2017
    Publication date: November 28, 2019
    Inventors: Dirk Achten, Thomas BÜSGEN, Rolf ALBACH, Levent AKBAS
  • Publication number: 20190344497
    Abstract: A method for producing an object with layers of different materials in an additive manufacturing process comprises the following steps: I) providing a construction material heated at least in part to a temperature above its glass transition temperature on a substrate, so that a layer of the construction material is obtained which corresponds to a first selected cross section of the object; II) providing a construction material heated at least in part to a temperature above its glass transition temperature on a previously provided layer of the construction material, so that another layer of the construction material is obtained which corresponds to another selected cross section of the object and which is connected to the previously provided layer; repeating step II) until the object is formed.
    Type: Application
    Filed: December 22, 2017
    Publication date: November 14, 2019
    Inventors: Dirk Achten, Thomas BÜSGEN, Peter REICHERT, Nicolas DEGIORGIO, Rolf WEHRMANN, Helmut Werner HEUER, Eckhard WENZ
  • Publication number: 20190337224
    Abstract: A process for producing an object from a precursor comprises the steps of: I) depositing a free-radically crosslinked resin atop a carrier to obtain a ply of a construction material joined to the carrier which corresponds to a first selected cross section of the precursor; II) depositing a free-radically crosslinked resin atop a previously applied ply of the construction material to obtain a further ply of the construction material which corresponds to a further selected cross section of the precursor and which is joined to the previously applied ply; III) repeating step II) until the precursor is formed; wherein the depositing of a free-radically crosslinked resin at least in step II) is effected by exposure and/or irradiation of a selected region of a free-radically crosslinkable resin corresponding to the respectively selected cross section of the object and wherein the free-radically crosslinkable resin has a viscosity (23° C., DIN EN ISO 2884-1) of ?5 mPas to ?100000 mPas.
    Type: Application
    Filed: November 14, 2017
    Publication date: November 7, 2019
    Inventors: Dirk Achten, Thomas BÜSGEN, Jörg TILLACK, Michael LUDEWIG, Christoph TOMCZYK, Roland WAGNER
  • Patent number: 10449714
    Abstract: A process for producing an object from a precursor comprises the steps of: depositing a free-radically crosslinked resin atop a carrier to obtain a ply of a construction material joined to the carrier which corresponds to a first selected cross section of the precursor; depositing a free-radically crosslinked resin atop a previously applied ply of the construction material to obtain a further ply of the construction material which corresponds to a further selected cross section of the precursor and which is joined to the previously applied ply; repeating step II) until the precursor is formed; wherein the depositing of a free-radically crosslinked resin at least in step II) is effected by exposure and/or irradiation of a selected region of a free-radically crosslinkable resin corresponding to the respectively selected cross section of the object and wherein the free-radically crosslinkable resin has a viscosity (23° C., DIN EN ISO 2884-1) of ?5 mPas to ?100000 mPas.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: October 22, 2019
    Assignee: Covestro Deutschland AG
    Inventors: Dirk Achten, Thomas Büsgen, Jörg Tillack, Michael Ludewig, Christoph Tomczyk, Roland Wagner
  • Publication number: 20190315062
    Abstract: A method for producing an article in which a layer (200) of meltable polymer is selectively melted at least partially. This takes place according to a selected cross section of the article to be formed. The at least partially melted material is added on layer by layer to a carrier (500) or to previous layers bonded to the carrier (500). A system that is suitable for carrying out the method according to the invention has a substrate (100), a control unit (600), an application unit (700) for applying the particles to the substrate (100), an energy exposure unit (700) and a contacting unit (800).
    Type: Application
    Filed: November 22, 2017
    Publication date: October 17, 2019
    Inventors: Dirk ACHTEN, Thomas BÜSGEN, Christoph TOMCZYK, Roland WAGNER, Bettina METTMANN, Dirk DIJKSTRA, Levent AKBAS, Arnaud GUEDOU
  • Publication number: 20190275732
    Abstract: A method for producing an article in which a layer with a radically cross-linkable resin is selectively crosslinked at least partially. This takes place according to a selected cross section of the article to be formed by means of selective application of a radical initiator. The at least partially crosslinked material is added on layer by layer to a carrier or to previous layers bonded to the carrier. A system that is suitable for carrying out the method according to the invention has a substrate, a control unit, an application unit for applying the resin to the substrate, an application unit for applying an initiator to the resin, an energy exposure unit and a contacting unit.
    Type: Application
    Filed: December 4, 2017
    Publication date: September 12, 2019
    Inventors: Dirk ACHTEN, Thomas BÜSGEN, Michael LUDEWIG, Roland WAGNER, Christoph TOMCZYK, Jörg TILLACK, Arnaud GENOU
  • Publication number: 20190254439
    Abstract: The invention relates to a method for producing a visco-elastic damping element comprising at least one visco-elastic spring element, characterized in that the visco-elastic spring element is structured from at least one visco-elastic material having a tan ? of at least 0.5, determined according to DIN 53535: 1982-03, and produced by means of a 3D printing method. The invention further relates to a visco-elastic damping element, which is produced or can be produced according to said method, and to a solid body comprising or consisting of a plurality of damping elements.
    Type: Application
    Filed: November 2, 2017
    Publication date: August 22, 2019
    Inventors: Dirk ACHTEN, Thomas BÜSGEN, Dirk DIJKSTRA, Roland WAGNER, Bettina METTMANN, Nicolas DEGIORGIO, Peter REICHERT
  • Publication number: 20190248067
    Abstract: A process is described for producing a three dimensional structure, the process including the following steps a) applying of at least a first material M1 onto a substrate to build a first layer L1 on the substrate; b) layering of at least one further layer Ly of the first material M1 or of a further material Mx onto the first layer L1, wherein the at least one further layer Ly covers the first layer L1 and/or previous layer Ly?1 at least partially to build a precursor of the three dimensional structure; c) curing the precursor to achieve the three dimensional structure; wherein at least one of the materials M1 or Mx provides a Mooney viscosity of >10 ME at 60° C. and of <200 ME at 100° C. before curing and wherein at least one of the first material Mi or of the further material Mx is a powder. Also, a three dimensional structure is described which is available according to the process according to the invention.
    Type: Application
    Filed: September 15, 2017
    Publication date: August 15, 2019
    Applicant: Covestro Deutschland AG
    Inventors: Dirk ACHTEN, Thomas BÜSGEN, Dirk DIJKSTRA, Bettina METTMANN, Levent AKBAS, Roland WAGNER, Michael KESSLER
  • Publication number: 20190240896
    Abstract: A process is described for producing a three dimensional structure, the process including the following steps a) applying of at least a first material M1 onto a substrate to build a first layer L1 on the substrate; b) layering of at least one further layer Ly of the first material M1 or of a further material Mx onto the first layer L1, wherein the at least one further layer Ly covers the first layer L1 and/or previous layer Ly-1 at least partially to build a precursor of the three dimensional structure; c) curing the precursor to achieve the three dimensional structure; wherein at least one of the materials M1 or Mx provides a Mooney viscosity of >10 ME at 60° C. and of <200 ME at 100° C. before curing. Also, a three dimensional structure is described which is available according to the process according to the invention.
    Type: Application
    Filed: July 7, 2017
    Publication date: August 8, 2019
    Inventors: Dirk ACHTEN, Thomas BÜSGEN, Dirk DIJKSTRA, Roland WAGNER
  • Publication number: 20190223618
    Abstract: It is a feature of a porous body (10, 20) comprising a three-dimensional network of node points (200) joined to one another by struts (100), and a void volume (300) present between the struts (100), that the struts (100) have an average length of ?200 to ?50 mm, the struts (100) have an average thickness of ?100 ?m to ?5 mm, and that the porous body has a compression hardness (40% compression, DIN EN ISO 3386-1: 2010-09) in at least one spatial direction of ?10 to ?100 kPa. The porous body according to the invention combines the advantages of a conventional mattress or cushion with ventilatability which results from its porous structure and is not achievable in conventional foams. The invention further relates to a method of producing such a porous body (10, 20) and to an apparatus comprising said body (10, 20) for supporting and/or bearing a person.
    Type: Application
    Filed: September 8, 2017
    Publication date: July 25, 2019
    Inventors: Dirk ACHTEN, Thomas BÜSGEN, Dirk DIJKSTRA, Nicolas DEGIORGIO, Roland WAGNER, Levent AKBAS, Peter REICHERT, Jürgen HÄTTIG
  • Publication number: 20190217533
    Abstract: A process for manufacturing an article comprises the steps of: I) applying a filament of an at least partially fused construction material to a support so as to obtain a layer of the construction material which corresponds to a first selected cross-section of the article; II) applying a filament of the at least partially fused construction material to a previously applied layer of the construction material so as to obtain a further layer of the construction material which corresponds to a further selected cross-section of the article and which is bonded to the previously applied layer; and III) repeating step II) until the article is formed. At least steps II) and III) are carried out in a chamber and the construction material comprises a fusible polymer. The fusible polymer has a fusion range (DSC, differential scanning calorimetry; 2nd heating at a heating rate of 5 K/min.) of ?20° C. to ?100° C.
    Type: Application
    Filed: September 11, 2017
    Publication date: July 18, 2019
    Inventors: Dirk Achten, Thomas BÜSGEN, Dirk DIJKSTRA, Nicolas DEGIORGIO, Roland WAGNER, Levent AKBAS, Peter REICHERT, Jörg BÜCHNER
  • Publication number: 20190184632
    Abstract: A process for manufacturing an article comprises the steps of: applying a layer that consists of particles to a target area; allowing, in a chamber, energy to act on a selected portion of the layer, according to a cross-section of the article, so that the particles in the selected portion are bonded, and repeating the steps of applying and allowing energy to act for a plurality of layers so that the bonded portions of the adjacent layers are bonded to form the article, at least part of the particles comprising a fusible polymer. The fusible polymer has a fusion range (DSC, differential scanning calorimetry; 2nd heating at a heating rate of 5 K/min.) of ?20 ° C. to ?100 ° C. The fusible polymer further has a complex viscosity \?*\ (determined by viscosity measurement in the melt using a plate-plate oscillating viscometer according to ISO 6721-10 at 100° C. and a shear rate of 1/s) of ?10 Pas to ?1000000 Pas. Finally, the temperature inside the chamber is ?50° C.
    Type: Application
    Filed: September 11, 2017
    Publication date: June 20, 2019
    Inventors: Dirk ACHTEN, Thomas BÜSGEN, Dirk DIJKSTRA, Nicolas DEGIORGIO, Wolfgang ARNDT, Levent AKBAS, Roland WAGNER, Peter REICHERT, Jörg BÜCHNER
  • Patent number: 10300660
    Abstract: A method of treating at least part of a surface (110) of an article (100) in which an article (100) is treated, at least part of a surface (110, 111) of the article having been produced by an additive manufacturing method from a construction material, and the construction material provides a temperature TG? at which the storage modulus G? of the construction material (determined by dynamic-mechanical analysis according to ISO 6721 at a shear rate of 1/s) is 10 MPa. The article is preferably placed into an evacuable volume and the volume is evacuated. By heating and exerting pressure, the surface is plastically deformed and can be smoothed thereby.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: May 28, 2019
    Assignee: Covestro Deutschland AG
    Inventors: Dirk Achten, Thomas Büsgen, Roland Wagner, Bettina Mettmann, Levent Akbas, Julien Guiu