Patents by Inventor Wolfgang Arndt

Wolfgang Arndt 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: 11213999
    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: Grant
    Filed: July 12, 2019
    Date of Patent: January 4, 2022
    Assignee: Covestro Intellectual Property GmbH & Co. KG
    Inventors: Dirk Achten, Thomas Buesgen, Joerg Tillack, Fabian Schuster, Nicolas Degiorgio, Jonas Kuenzel, Joerg Buechner, Wolfgang Arndt, Martin Melchiors, Harald Kraus
  • 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: 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
  • 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: 20210031435
    Abstract: The invention relates to a method for applying a material containing a meltable polymer comprising the step of applying a filament of the at least partially molten material from a discharge opening of a discharge element onto a substrate. The meltable polymer has the following properties: —a melting point (DSC, differential scanning calorimetry; second heating with a heating rate of 5° C./min) in a range from ?40° C. to ?120° C.; —a glass transition temperature (DMA, dynamic mechanical analysis in accordance with DIN EN ISO 6721-1:2011) in a range from ??70° C. to ?30° C.; —a storage modulus G? (parallel plate oscillation viscometer in accordance with ISO 6721-10:2015 at a frequency of 1/s) at 20° C. above the melting point of ?1·104 Pa?—a storage modulus G? (parallel plate oscillation viscometer in accordance with ISO 6721-10:2015 at a frequency of 1/s) at 10° C. below the melting point with prior heating to a temperature of 20° C. above the melting point and subsequent cooling with a cooling rate of 1° C.
    Type: Application
    Filed: February 13, 2019
    Publication date: February 4, 2021
    Inventors: Dirk Achten, Thomas Buesgen, Joerg Tillack, Peter Reichert, Nicolas Degiorgio, Martin Melchiors, Wolfgang Arndt
  • Publication number: 20200339808
    Abstract: The invention relates to dispersion adhesives based on aqueous polyurethane or polyurethane-urea dispersions, which meet the requirements for industrial shoe manufacturing, in particular with simultaneous drying and activation at low temperatures, and also to the use of the dispersion adhesives for the production of adhesive composites.
    Type: Application
    Filed: January 15, 2019
    Publication date: October 29, 2020
    Inventors: Harald KRAUS, Wolfgang ARNDT, Evgeny AVTOMONOV
  • Patent number: 10745591
    Abstract: The present invention relates to a method for adhesively bonding substrates, said method comprising the following steps: I) at least one adhesive component (a) and at least one isocyanate component (b) are applied between at least two substrates; II) the substrates are pressed together. The method is characterized in that in step I), the adhesive component and the isocyanate component are applied separately to the substrate. The invention further relates to a composite obtained according to said method. In a preferred embodiment, an aqueous polyurethane dispersion or a polyurethane solution in organic solvents is used as the adhesive component.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: August 18, 2020
    Assignee: Covestro Deutschland AG
    Inventors: Jörg Tillack, Dirk Achten, Wolfgang Arndt, Roland Wagner, Martin Melchiors, Cornelia Steck
  • 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: 10213932
    Abstract: A hand tool (100, 200, 300) includes a working head (102), a handle (104) connected to the working head (102), and a handle protector (110, 302, 502) attached to the handle (104) proximate the working head (102). The handle protector (110, 302, 502) is manufactured from a metal sheet. Further, at least one portion of the handle protector (110, 302, 502) extends into the handle (104) to facilitate attachment of the handle protector (110, 302, 502) to the handle (104).
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: February 26, 2019
    Assignee: HUSQVARNA AB
    Inventors: Achim Brobeil, Patrick Missel, Wolfgang Arndt
  • Publication number: 20180105722
    Abstract: The present invention relates to a method for adhesively bonding substrates, said method comprising the following steps: I) at least one adhesive component (a) and at least one isocyanate component (b) are applied between at least two substrates; II) the substrates are pressed together. The method is characterized in that in step I), the adhesive component and the isocyanate component are applied separately to the substrate. The invention further relates to a composite obtained according to said method. In a preferred embodiment, an aqueous polyurethane dispersion or a polyurethane solution in organic solvents is used as the adhesive component.
    Type: Application
    Filed: April 7, 2016
    Publication date: April 19, 2018
    Inventors: Jörg Tillack, Dirk Achten, Wolfgang Arndt, Roland Wagner, Martin Melchiors, Cornelia Steck
  • Patent number: 9546490
    Abstract: A method for reinforcing a part of a building comprises the step of adhesively bonding a textile to the surface of the part of a building by means of an adhesive. The invention relates further to such a reinforced part of a building and to the use of a textile in combination with an adhesive for reinforcing a part of a building, wherein the textile is adhesively bonded to the surface of the part of a building by means of an adhesive.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: January 17, 2017
    Assignee: COVESTRO DEUTSCHLAND AG
    Inventors: Harald Kraus, Wolfgang Arndt, Matthias Wintermantel, Heinz-Werner Lucas, Dirk Dijkstra, Lothar Stempniewski, Moritz Urban
  • Patent number: 9475971
    Abstract: The present invention relates to novel waterborne adhesives which are polymerizable by UV light and are capable of being activated by heat, and which particularly display good adhesion to difficult substrates, such as ethylene vinyl acetate copolymers (EVA) with a low vinyl acetate content, or rubber. The invention further provides a novel method in which, after the application of the waterborne adhesive to an article and drying, irradiation with UV light and at the same time or thereafter activation by heat are performed. The adhesive film which is irradiated and activated in this way is then bonded to a further article. The invention also provides the use of the adhesives to make items such as shoes.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: October 25, 2016
    Assignee: Covestro Deutschland AG
    Inventors: Dirk Achten, Wolfgang Arndt, Harald Kraus, Jan Weikard
  • Patent number: 9453147
    Abstract: An aqueous dispersion comprising at least one polyurethane polymer with a melting temperature in the range of 30° C. to 50° C. and (cold contact) adhesives comprising such a polyurethane dispersion, a method for creating an adhesive bonding and the use of such (cold contact) adhesives for creating an adhesive bonding.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: September 27, 2016
    Assignee: Covestro Deutschland AG
    Inventors: Harald Kraus, Wolfgang Arndt, Matthias Wintermantel
  • Patent number: 8846198
    Abstract: The present invention relates to aqueous compositions based on crystalline or semicrystalline polyurethane polymers, processes for the preparation thereof and adhesive systems comprising these aqueous compositions and the use thereof.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: September 30, 2014
    Assignee: Bayer MaterialScience AG
    Inventors: Jörg Büchner, Dirk Achten, Harald Kraus, Wolfgang Arndt
  • Publication number: 20140249267
    Abstract: An aqueous dispersion comprising at least one polyurethane polymer with a melting temperature in the range of 30° C. to 50° C. and (cold contact) adhesives comprising such a polyurethane dispersion, a method for creating an adhesive bonding and the use of such (cold contact) adhesives for creating an adhesive bonding.
    Type: Application
    Filed: October 11, 2012
    Publication date: September 4, 2014
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Harald Kraus, Wolfgang Arndt, Matthias Wintermantel
  • Publication number: 20140215948
    Abstract: A method for reinforcing a part of a building comprises the step of adhesively bonding a textile to the surface of the part of a building by means of an adhesive. The invention relates further to such a reinforced part of a building and to the use of a textile in combination with an adhesive for reinforcing a part of a building, wherein the textile is adhesively bonded to the surface of the part of a building by means of an adhesive.
    Type: Application
    Filed: August 6, 2012
    Publication date: August 7, 2014
    Applicants: KARLSRUHER INSTITUT FÜR TECHNOLOGIE, BAYER INTELLECTUAL PROPERTY GMBH
    Inventors: Harald Kraus, Wolfgang Arndt, Matthias Wintermantel, Heinz-Werner Lucas, Dirk Dijkstra, Lothar Stempniewski, Moritz Urban
  • Publication number: 20140000116
    Abstract: A hand tool (100, 200, 300) includes a working head (102), a handle (104) connected to the working head (102), and a handle protector (110, 302, 502) attached to the handle (104) proximate the working head (102). The handle protector (110, 302, 502) is manufactured from a metal sheet. Further, at least one portion of the handle protector (110, 302, 502) extends into the handle (104) to facilitate attachment of the handle protector (110, 302, 502) to the handle (104).
    Type: Application
    Filed: March 24, 2011
    Publication date: January 2, 2014
    Applicant: HUSQVARNA AB
    Inventors: Achim Brobeil, Patrick Missel, Wolfgang Arndt
  • Patent number: 8586185
    Abstract: Aqueous polyurethane-polyurethane urea dispersions comprising a reaction product of: (i) an NCO prepolymer prepared from; (A) one or more di- or higher-functional polyols having a mean molecular weight of 400 to 5000 daltons, (B) optionally one or more di- or higher-functional polyol components having a molecular weight of from 62 to 399 daltons, (C) one or more compounds which are monofunctional within the scope of the isocyanate polyaddition reaction and have an ethylene oxide content of at least 50 wt. % and a molecular weight of at least 400 daltons, and (D) one or more di- or poly-isocyanate components; and (ii) a mixture (E) of primary and/or secondary monoamino compounds (E1) and primary and/or secondary diamino compounds (E2); wherein at least one of the amino compounds of the mixture (E) has a functional group selected from sulfonates and carboxylates; wherein mixture (E) has a mean amino functionality of 1.65 to 1.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: November 19, 2013
    Assignee: Bayer MaterialScience AG
    Inventors: Harald Kraus, Wolfgang Henning, Wolfgang Arndt
  • Publication number: 20130273359
    Abstract: The present invention relates to the use of aqueous UV-reactive primers for the coating of substrates based on ethylene vinyl acetate copolymers (EVA copolymers) or rubber. The present invention further provides a novel method for joining articles using an aqueous UV-reactive primer.
    Type: Application
    Filed: November 21, 2011
    Publication date: October 17, 2013
    Applicant: BAYER INTELLECTUAL PROPERTY GMBH
    Inventors: Wolfgang Arndt, Erhard Luehmann, Stefan Sommer, Jan Weikard, Lucy Bai, Jane Sum, Henry Zhao
  • Patent number: RE48584
    Abstract: A method for reinforcing a part of a building comprises the step of adhesively bonding a textile to the surface of the part of a building by means of an adhesive. The invention relates further to such a reinforced part of a building and to the use of a textile in combination with an adhesive for reinforcing a part of a building, wherein the textile is adhesively bonded to the surface of the part of a building by means of an adhesive.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: June 8, 2021
    Assignee: COVESTRO DEUTSCHLAND AG
    Inventors: Harald Kraus, Wolfgang Arndt, Matthias Wintermantel, Heinz-Werner Lucas, Dirk Dijkstra, Lothar Stempniewski, Moritz Urban