Patents by Inventor Bettina Mettmann

Bettina Mettmann 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: 20200306829
    Abstract: The present invention relates to a method for producing a treated object, comprising the steps of: applying a layer of particles to a target area; applying a liquid binder to a selected portion of the layer in accordance with a cross-section of the object, so that the particles in the selected portion are bonded; repeating the steps of applying a layer of particles and applying a binder for a plurality of layers so that the bonded portions of the adjacent layers are bonded to form an object, wherein at least a part of the particles comprises a meltable polymer. A binder which cures by cross-linking is preferably selected as the binder. The obtained object is at least partially contacted with a liquid heated to ?T or with a powder bed heated to ?T in order to obtain the treated object. T represents a temperature of ?25° C.
    Type: Application
    Filed: December 18, 2018
    Publication date: October 1, 2020
    Inventors: Dirk Achten, Thomas Buesgen, Roland Wagner, Jonas Kuenzel, Michael Kessler, Bettina Mettmann
  • Publication number: 20200307076
    Abstract: The invention relates to an additive manufacturing process (3D printing) using particles having a meltable polymer. The meltable polymer comprises a thermoplastic polyurethane polymer which has a flowing temperature (intersection of E? and E? in the DMA) of ?80° C. to <180° C. and a Shore A hardness according to DIN ISO 7619-1 of ?50 Shore A and <85 Shore A and which, at a temperature T, has a melt volume rate (melt volume rate (MVR)) according to ISO 1133 of ?5 to <15 cm3/10 min. The invention also relates to an item which can be obtained by means of the method.
    Type: Application
    Filed: December 13, 2018
    Publication date: October 1, 2020
    Inventors: Dirk Achten, Thomas Buesgen, Michael Kessler, Peter Reichert, Bettina Mettmann
  • Publication number: 20200307073
    Abstract: The invention relates to an additive manufacturing process (3D printing) using particles having a meltable polymer. The meltable polymer comprises a thermoplastic polyurethane polymer which has a melting range (DSC, Differential Scanning calorimetry; second heating at heating rate 5 K/min) of 160 to 270° C. and a Shore D hardness according to DIN ISO 7619-1 of 50 or more and which, at a temperature T, has a melt volume rate (melt volume rate (MVR)) according to ISO 1133 of 5 to 15 cm/10 min and a change of the MVR, when this temperature T increases by 20° C., of greater than or equal to 90 cm3/10 min. The invention also relates to an item which can be obtained by means of the method.
    Type: Application
    Filed: December 13, 2018
    Publication date: October 1, 2020
    Inventors: Dirk Achten, Thomas Buesgen, Michael Kessler, Peter Reichert, Bettina Mettmann
  • 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: 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: 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: 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
  • 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
  • Publication number: 20180111315
    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: Application
    Filed: October 24, 2017
    Publication date: April 26, 2018
    Inventors: Dirk Achten, Thomas Büsgen, Roland Wagner, Bettina Mettmann, Levent Akbas, Julien Guiu