Patents by Inventor Dirk Achten

Dirk Achten 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).

  • Patent number: 11124682
    Abstract: The present invention relates to the use of hydrophilized polyisocyanates for the production of water-diluted coating compositions which have a polymeric polyol content of not more than 10%.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: September 21, 2021
    Assignee: Covestro Deutschland AG
    Inventors: Dirk Achten, Florian Golling, Frank Sicking, Olaf Fleck, Martin Melchiors, Christoph Thiebes
  • Patent number: 11124672
    Abstract: The present invention relates to the use of hydrophilized polyisocyanates for the production of water-diluted coating compositions.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: September 21, 2021
    Assignee: Covestro Deutschland AG
    Inventors: Dirk Achten, Florian Golling, Frank Sicking, Olaf Fleck, Jan Weikard
  • Publication number: 20210252778
    Abstract: A method of applying a material comprising a fusible polymer comprises the step of: applying a filament of the at least partly molten material comprising a fusible polymer from a discharge opening of a discharge element to a first substrate. The fusible polymer has the following properties: a melting point (DSC, differential scanning calorimetry; 2nd heating at heating rate 5° C./min) within a range from ?35° C. to ?150° C.; a glass transition temperature (DMA, dynamic-mechanical analysis to DIN EN ISO 6721-1:2011) within a range from ??70° C. to ?110° C.; wherein the filament, during the application process, has an application temperature of ?100° C. above the melting point of the fusible polymer for ?20 minutes. There are furthermore blocked NCO groups present in the material comprising the fusible polymer.
    Type: Application
    Filed: July 12, 2019
    Publication date: August 19, 2021
    Inventors: Dirk Achten, Thomas Buesgen, Joerg Tillack, Fabian Schuster, Nicolas Degiorgio, Jonas Kuenzel, Joerg Buechner, Wolfgang Arndt, Martin Melchiors, Harald Kraus
  • Publication number: 20210246255
    Abstract: The invention relates to a method for producing a polyisocyanate polymer and to the polyisocyanate polymer obtainable from the method and to the use thereof as part of a two-stage method for producing a polyisocyanurate plastic, in particular for producing coatings, films, semi-finished products or molded parts containing such a polyisocyanurate plastic.
    Type: Application
    Filed: May 13, 2019
    Publication date: August 12, 2021
    Applicant: Covestro Intellectual Property GmbH & Co. KG
    Inventors: Heiko HOCKE, Mathias MATNER, Dirk ACHTEN, Hans-Josef LAAS, Dieter MAGER
  • Publication number: 20210245424
    Abstract: A method of applying a material comprising a fusible polymer comprises the step of: applying a filament of the at least partly molten material comprising a fusible polymer from a discharge opening of a discharge element to a first substrate. The fusible polymer has the following properties: a melting point (DSC, differential scanning calorimetry; 2nd heating at heating rate 5° C./min) within a range from ?35° C. to ?150° C.; a glass transition temperature (DMA, dynamic-mechanical analysis to DIN EN ISO 6721-1:2011) within a range from ??70° C. to ?110° C.; wherein the filament, during the application process, has an application temperature of ?100° C. above the melting point of the fusible polymer for ?20 minutes. There are still free NCO groups in the material including the fusible polymer.
    Type: Application
    Filed: July 12, 2019
    Publication date: August 12, 2021
    Inventors: Dirk Achten, Thomas Buesgen, Joerg Tillack, Fabian Schuster, Ralf Rott, Nicolas Degiorgio, Jonas Kuenzel, Joerg Buechner, Wolfgang Arndt, Martin Melchiors, Harald Kraus
  • Publication number: 20210238341
    Abstract: The present invention relates to urethane, thiourethane and urea adducts of tertiary amines and the use thereof as catalysts for the crosslinking of aliphatically, cycloaliphatically, araliphatically or aromatically bonded isocyanate groups with one another. The catalysts according to the invention have the particular advantage that they are thermolatent.
    Type: Application
    Filed: April 12, 2019
    Publication date: August 5, 2021
    Inventors: Richard Meisenheimer, Paul Heinz, Dirk Achten, Frank-Stefan Stern, Andreas Hecking, Fee Strobel
  • Publication number: 20210222752
    Abstract: The invention relates to a method for producing a viscoelastic damping body (1, 20, 30), comprising at least one spring element (4) and at least one damping element coupled thereto, wherein the method is characterized in that the damping element and optionally also the spring element (4) are produced by means of a 3-D printing method. The invention further relates to a viscoelastic damping body (1, 20, 30) that is or can be produced according to such a method and to a volume body comprising or consisting of a plurality of such damping bodies (1, 20, 30).
    Type: Application
    Filed: May 30, 2017
    Publication date: July 22, 2021
    Inventors: Thomas BÜSGEN, Dirk ACHTEN, Nicolas DEGIORGIO, Jürgen HÄTTIG, Peter REICHERT
  • Publication number: 20210214487
    Abstract: The present invention relates to a method for preparing composite materials made of polyethylene fibers having an ultra-high molecular weight and cross-linked polyisocyanates, to the composite materials obtainable therefrom and to the use of such composite materials for producing components. The invention also relates to components consisting of or containing a composite material according to the invention.
    Type: Application
    Filed: May 13, 2019
    Publication date: July 15, 2021
    Inventors: Paul HEINZ, Dirk ACHTEN, Dirk DIJKSTRA, Heiko HOCKE
  • Publication number: 20210155747
    Abstract: The present invention relates to the use of tertiary amines as catalysts for the cross-linking of isocyanate groups which are aliphatically and/or cyclo-aliphatically bonded. The catalysts according to the invention have the particular advantage that they are thermally latent.
    Type: Application
    Filed: April 12, 2019
    Publication date: May 27, 2021
    Inventors: Richard Meisenheimer, Paul Heinz, Dirk Achten, Frank-Stefan Stern
  • Publication number: 20210154899
    Abstract: A method for producing a foam body (10) having an internal structure (100, 200, 300), comprising the steps: I) selecting an internal structure (100, 200, 300) to be formed in the foam body (10), the structure comprising a first polymer material; II) providing a foam body (10), the foam body (10) comprising a second polymer material which is different to the first polymer material; III) injecting, by means of an injection means (20), a predefined amount of a melt of the first polymer material or a predefined amount of a reaction mixture (30, 31, 32) which reacts to form the first polymer material at a predefined location inside the foam body (10), corresponding to a volume element of the internal structure (100, 200, 300); IV) repeating step III) for further predefined locations inside the foam body (10), corresponding to further volume elements of the internal structure (10), until the internal structure (10) is formed.
    Type: Application
    Filed: February 8, 2021
    Publication date: May 27, 2021
    Inventors: Dirk Achten, Rebecca Heil, Rolf Albach, Michael Ehlers, Dorothee Clasen, Sascha Praet, Adam Pajonk
  • Patent number: 11007711
    Abstract: A process for manufacturing an object involves the steps of: I) depositing a radically cross-linked resin on a carrier so that a layer of a structuring material joined to the carrier is obtained, said layer corresponding to a first selected cross-section of the object; II) depositing a radically cross-linked resin on a previously applied layer of the structuring material so that an additional layer of the structuring material is obtained which corresponds to a further selected cross-section of the object and which is joined to the previously applied layer; III) repeating step II) until the object is formed, wherein the deposition of a radically cross-linked resin in steps I) and II) includes the application of a radically cross-linkable resin to the carrier or the previously applied layer and is performed at least in step II) by applying energy to a selected region of a radically cross-linkable resin, corresponding to the selected cross-section of the object, the radically cross-linkable resin having a viscos
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: May 18, 2021
    Assignee: Covestro Deutschland AG
    Inventors: Dirk Achten, Thomas Buesgen, Roland Wagner, Florian Stempfle, Michael Ludewig, Christoph Tomczyk
  • Publication number: 20210138720
    Abstract: The invention relates to a method for producing an object, comprising the step of producing the object from a construction material by means of an additive manufacturing process, wherein the construction material comprises a plurality of thermoplastic polyurethane materials. The materials differ by at least one mechanical property such as the shore hardness or the elongation at break. The invention also relates to an object obtained according to said method.
    Type: Application
    Filed: April 23, 2018
    Publication date: May 13, 2021
    Inventors: Dirk ACHTEN, Thomas BÜSGEN, Michael KESSLER, Peter REICHERT, Roland WAGNER, Nicolas DEGIORGIO, Jonas KUENZEL, Ting LIU
  • Patent number: 10974498
    Abstract: A process for manufacturing an article, comprising the step of manufacturing the article via an additive fabrication process from a structural material, is notable in that the structural material comprises a polymer selected from the following group: (co)polycarbonates, polyesters, polyestercarbonates, polyformals, polyamides, polyethers, polyvinyl chloride, polymethyl (meth)acrylate, polystyrene or a combination of at least two thereof and an additive absorbing infrared radiation. The additive absorbing infrared radiation is selected for its chemical structure and its concentration in the structural material such that it reduces transmission by the structural material of light in the wavelength range between 600 nm and 1700 nm, determined on a sample 100 ?m thick, by ?2.5 percentage points relative to a structural material sample with a thickness of 100 ?m that does not contain the additive absorbing infrared radiation.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: April 13, 2021
    Assignee: Covestro Deutschland AG
    Inventors: Dirk Achten, Thomas Büsgen, Rolf Wehrmann, Helmut Werner Heuer
  • Publication number: 20210102090
    Abstract: The invention relates to processes for coating surfaces by alternatingly applying polyisocyanate compositions and suitable crosslinking catalysts, followed by catalytically crosslinking the polyisocyanate composition.
    Type: Application
    Filed: March 28, 2018
    Publication date: April 8, 2021
    Inventors: Jörg TILLACK, Dirk ACHTEN, Cornelia STECK, Roland WAGNER
  • Publication number: 20210087324
    Abstract: The invention relates to a method for producing an object from a construction material, the construction material comprising radically crosslinkable groups, NCO groups and groups having Zerewitinoff active H atoms, and the object being a three-dimensional object and/or a layer. During and/or after the production of the object, the construction material is heated to a temperature of >50° C.
    Type: Application
    Filed: March 26, 2018
    Publication date: March 25, 2021
    Inventors: Dirk ACHTEN, Thomas BÜSGEN, Christoph TOMCZYK, Jan WEIKARD, Frank RICHTER, Roland WAGNER
  • Patent number: 10946569
    Abstract: A method for producing a foam body (10) having an internal structure (100, 200, 300), comprising the steps: I) selecting an internal structure (100, 200, 300) to be formed in the foam body (10), the structure comprising a first polymer material; II) providing a foam body (10), the foam body (10) comprising a second polymer material which is different to the first polymer material; III) injecting, by means of an injection means (20), a predefined amount of a melt of the first polymer material or a predefined amount of a reaction mixture (30, 31, 32) which reacts to form the first polymer material at a predefined location inside the foam body (10), corresponding to a volume element of the internal structure (100, 200, 300); IV) repeating step III) for further predefined locations inside the foam body (10), corresponding to further volume elements of the internal structure (10), until the internal structure (10) is formed.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: March 16, 2021
    Assignee: Covestro Deutschiand AG
    Inventors: Dirk Achten, Rebecca Alina Heil, Rolf Albach, Michael Ehlers, Dorothee Clasen, Sascha Praet, Adam Pajonk
  • Publication number: 20210054125
    Abstract: The invention relates to a method for producing an object from a precursor, comprising the steps: I) depositing a radically cross-linked resin on a carrier so that a layer of a construction material connected to the carrier is obtained, said layer corresponding to a first selected cross-section of the precursor; II) depositing a radically cross-linked resin on a previously applied layer of the construction material so that an additional layer of the construction material is obtained, which corresponds to a further selected cross-section of the precursor and which is connected to the previously applied layer; III) repeating step II) until the precursor is formed, wherein, at least in step II), the deposition of a radically cross-linked resin is carried out by allowing energy to act on a selected region of a radically cross-linkable resin, corresponding to the respectively selected cross-section of the object, wherein the radically cross-linkable resin has a viscosity (23° C.
    Type: Application
    Filed: December 4, 2017
    Publication date: February 25, 2021
    Inventors: Dirk Achten, Thomas BÜSGEN, Florian GOLLING, Roland WAGNER, Christoph TOMCZYK, Jörge TILLACK, Christoph EGGERT, Hans-Josef LAAS, Florian STEMPFLE
  • Patent number: 10926459
    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: Grant
    Filed: September 11, 2017
    Date of Patent: February 23, 2021
    Assignee: Covestro Deutschland AG
    Inventors: Dirk Achten, Thomas Büsgen, Dirk Dijkstra, Nicolas Degiorgio, Wolfgang Arndt, Levent Akbas, Roland Wagner, Peter Reichert, Jörg Büchner
  • Publication number: 20210046696
    Abstract: A process for manufacturing an object involves the steps of: I) depositing a radically cross-linked resin on a carrier so that a layer of a structuring material joined to the carrier is obtained, said layer corresponding to a first selected cross-section of the object; II) depositing a radically cross-linked resin on a previously applied layer of the structuring material so that an additional layer of the structuring material is obtained which corresponds to a further selected cross-section of the object and which is joined to the previously applied layer; III) repeating step II) until the object is formed, wherein the deposition of a radically cross-linked resin in steps I) and II) includes the application of a radically cross-linkable resin to the carrier or the previously applied layer and is performed at least in step II) by applying energy to a selected region of a radically cross-linkable resin, corresponding to the selected cross-section of the object, the radically cross-linkable resin having a viscos
    Type: Application
    Filed: November 8, 2018
    Publication date: February 18, 2021
    Inventors: Dirk Achten, Thomas Buesgen, Roland Wagner, Florian Stempfle, Michael Ludewig, Christoph Tomczyk
  • Publication number: 20210047547
    Abstract: The present invention relates to the use of hydrophilized polyisocyanates for the production of water-diluted coating compositions which have a polymeric polyol content of not more than 10%.
    Type: Application
    Filed: December 14, 2018
    Publication date: February 18, 2021
    Inventors: Dirk Achten, Florian Golling, Frank Sicking, Olaf Fleck, Martin Melchiors, Christoph Thiebes