Patents by Inventor Thomas Rölle

Thomas Rölle 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: 11267943
    Abstract: The invention relates to a layer construction comprising a curable protective layer C and a photopolymer layer B, to a method for producing such a layer construction, to a method for producing a hologram using such a layer construction, to a sealed holographic medium and to the use of such a layer construction for producing a hologram.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: March 8, 2022
    Assignee: Covestro Deutschland AG
    Inventors: Serguei Kostromine, Benjamin Herzberg, Thomas Rölle, Dennis Hönel, Thomas Fäcke, Heinz-Guenter Auweiler
  • Patent number: 11242360
    Abstract: The invention relates to a process for the preparation of triaryl-organo borates from boronic ester and the use of these substances in photo initiator systems, photopolymer compositions comprising such photo initiator systems, a holographic medium comprising said photopolymer composition and the respective hologram.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: February 8, 2022
    Assignee: COVESTRO DEUTSCHLAND AG
    Inventors: Thomas Rölle, Ganugapati Satyanarayana, Sumana Roychowdhury, Ravindra Mahadev Patil, Anup Krishnnan Appukuttan Pillai
  • Publication number: 20220002321
    Abstract: The invention relates to a process for preparing triaryl organoborates proceeding from organoboronic esters in the presence of an n-valent cation 1/n Kn+, comprising the anhydrous workup of the reaction mixture and the use of the triaryl organoborates obtained as co-initiator in photopolymer formulations, holographic media and holograms.
    Type: Application
    Filed: November 18, 2020
    Publication date: January 6, 2022
    Inventors: Thomas RÖLLE, Horst BERNETH, Dennis HÖNEL, Friedrich-Karl BRUDER, Jürgen KINTRUP
  • Publication number: 20210292505
    Abstract: The invention relates to a layer construction comprising a curable protective layer C and a photopolymer layer B, to a method for producing such a layer construction, to a method for producing a hologram using such a layer construction, to a sealed holographic medium and to the use of such a layer construction for producing a hologram.
    Type: Application
    Filed: May 8, 2018
    Publication date: September 23, 2021
    Inventors: Serguei KOSTROMINE, Benjamin HERZBERG, Thomas RÖLLE, Dennis HÖNEL, Thomas FÄCKE, Heinz-Guenter AUWEILER
  • Publication number: 20210283941
    Abstract: A production method for a polymer laminate with at least one diffraction element is simplified. The method includes the following method steps: providing a diffraction element material with a carrier film and a light-sensitive layer located thereon, and also at least one polymer layer; producing the at least one diffraction element by creating a light-diffracting layer from the light-sensitive layer, in that a light-diffracting pattern is created in the light-sensitive layer of the at least one diffraction element material; bringing together the at least one diffraction element and at least one polymer layer to form a stack of layers; and surface bonding the at least one diffraction element and the at least one polymer layer 170 by way of a lamination process, thereby forming the polymer laminate.
    Type: Application
    Filed: July 21, 2017
    Publication date: September 16, 2021
    Inventors: ANDRE LEOPOLD, OLGA KULIKOVSKA, KATHRIN KLUENDER, MANFRED PAESCHKE, ENRICO ORSELLI, THOMAS ROELLE, WIELAND HOVESTADT, DENNIS HOENEL
  • Patent number: 11098066
    Abstract: Provided herein is a process for preparing triaryl organoborates of the formula 1/n Kn+R34B?—R1 (IV), where one equivalent of organoboronic ester of the formula B—R1(OR2)(OR3) (I) is initially charged together with 1/n equivalents of salt Kn+ nX? (II) and 3 equivalents of metal M in a solvent or a solvent mixture S1, 3 equivalents of a haloaromatic R4—Y (III) are added, an auxiliary L and optionally a second organic solvent or solvent mixture S2 is added and the compound 1/n Kn+ R34B?—R1 (IV) is separated off with the organic phase, and to the use of these substances as co-initiator in photopolymer formulations.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: August 24, 2021
    Assignee: Covestro Deutschland AG
    Inventors: Thomas Rölle, Horst Berneth, Dennis Hönel, Friedrich-Karl Bruder, Jürgen Kintrup
  • Publication number: 20210237499
    Abstract: To simplify the production of a security element 300 with a first security feature 310 and a second security feature 320, the following method is proposed: (a) Provision of a light-sensitive film 200, which comprises at least one carrier layer 210 and in surface-to-surface contact with this a light-sensitive function layer 220; (b) Exposure of the light-sensitive film 200 at least area by area, with the formation of a pattern in the light-sensitive function layer 220, wherein the security element (300) is formed with a first security feature (310); (b?) Optional fixing of the exposed light-sensitive film; and (c) Printing of the carrier layer 210 and, as appropriate, of the protective layer 230, wherein a second security feature 320 is produced.
    Type: Application
    Filed: May 9, 2019
    Publication date: August 5, 2021
    Applicants: Covestro Deutschland AG, Covestro Intellectual Property GmbH & Co. KG
    Inventors: Oliver Muth, Olga Kulikovska, Tatjana Sauer, Jörg Fischer, Arthur Mathea, Franziska Peinze, Enrico Orselli, Thomas Rölle, Wieland Hovestadt, Heinz Pudleiner, Dennis Hönel
  • Patent number: 11078218
    Abstract: Provided herein is a process for preparing triaryl organoborates proceeding from alkyl or cycloalkyl boronates in the presence of an n-valent cation 1/n Kn+ to obtain organoborates of the formula 1/n Kn+R34B?—R1 (IV), where one equivalent of organoboronic ester of the formula B—R1(OR2)(OR3) (I) is initially charged together with 1/n equivalents of salt Kn+ nX? (II) and 3 equivalents of metal M in a solvent or a solvent mixture, 3 equivalents of a haloaromatic R4—Y (III) are added, and optionally a second organic solvent water is added and the compound 1/n Kn+ R24B?—R1 (IV) is separated off with the organic phase, and to the use of these substances as co-initiator in photopolymer formulations.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: August 3, 2021
    Assignee: Covestro Deutschland AG
    Inventors: Thomas Rölle, Horst Berneth, Dennis Hönel, Friedrich-Karl Bruder
  • Patent number: 11059930
    Abstract: The invention relates to a protective layer comprising a photopolymer layer B and an at least partly cured protective layer C, to a process for producing the layer construction according to the invention, to a kit of parts, to the use of an at least partly cured protective layer C for protection of a photopolymer layer B and to optical displays and security documents comprising the layer construction according to the invention.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: July 13, 2021
    Assignee: Covestro Deutschland AG
    Inventors: Serguei Kostromine, Thomas Roelle, Wieland Hovestadt, Karl Vetterle, Therese Klobutowski
  • Publication number: 20210095064
    Abstract: The invention relates to a protective layer comprising a photopolymer layer B and and an at least partly cured protective layer C, to a process for producing the layer construction according to the invention, to a kit of parts, to the use of an at least partly cured protective layer C for protection of a photopolymer layer B and to optical displays and security documents comprising the layer construction according to the invention.
    Type: Application
    Filed: July 23, 2018
    Publication date: April 1, 2021
    Inventors: Serguei KOSTROMINE, Thomas ROELLE, Wieland HOVESTADT, Karl VETTERLE, Therese KLOBUTOWSKI
  • Patent number: 10901368
    Abstract: A method for integrating a hologram into the body of a security document that has a laminated body. The method includes: providing a holographic film having a backing substrate layer and a photo layer; providing additional substrate layers; carrying out a laminating process in order to form the laminated body, the holographic film together with the additional substrate layers being collated to form a substrate layer stack and being combined, together with the additional substrate layers, in a high-pressure, high-temperature laminating method to form the laminated body. There is also described a corresponding security document body.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: January 26, 2021
    Assignees: Bundesdruckerei GmbH, Covestro Deutschland AG
    Inventors: Michael Stasiak, Michael Knebel, Andre Leopold, Olga Kulikovska, Enrico Orselli, Thomas Roelle, Wieland Hovestadt, Dennis Hoenel
  • Publication number: 20200241471
    Abstract: The invention relates to a sealed holographic medium comprising a layer construction containing a photopolymer layer and a sealing layer, to a process for producing the sealed holographic medium, to a kit of parts, to a layer construction for sealing and to the use thereof.
    Type: Application
    Filed: May 8, 2018
    Publication date: July 30, 2020
    Inventors: Serguei KOSTROMINE, Thomas RÖLLE, Thomas FÄCKE, Enrico ORSELLI
  • Publication number: 20200166888
    Abstract: The invention relates to a holographic medium containing a layer construction comprising a curable protective layer C and a photopolymer layer B, to a method for producing such a holographic medium, to a method for producing a hologram using such a holographic medium, to a sealed holographic medium and to the use of such a holographic medium for producing a hologram.
    Type: Application
    Filed: May 7, 2018
    Publication date: May 28, 2020
    Inventors: Serguei KOSTROMINE, Benjamin HERZBERG, Thomas RÖLLE, Dennis HÖNEL, Thomas FÄCKE, Heinz-Günter AUWEILER
  • Publication number: 20200166889
    Abstract: The invention relates to a scaled holographic medium comprising a layer construction B?-C1?-C2?, to a process for producing the sealed holographic medium, to a kit of parts, to a layer construction comprising a protective layer and a substrate layer and to the use thereof.
    Type: Application
    Filed: May 7, 2018
    Publication date: May 28, 2020
    Applicant: Covestro Deutschland AG
    Inventors: Serguei KOSTROMINE, Thomas RÖLLE, Thomas FÄCKE, Karl VETTERLE
  • Patent number: 10606212
    Abstract: The invention relates to a method for selecting compounds which can be used as additives in photopolymer formulations for producing light holographic media, and to photopolymer formulations which contain at least one softener which are selected according to the claimed method. The invention also relates to the use of photopolymer formulations for producing holographic media.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: March 31, 2020
    Assignee: Covestro Deutschland AG
    Inventors: Thomas Roelle, Friedrich-Karl Bruder, Thomas Fäcke, Marc-Stephan Weiser, Dennis Hönel, Christian Diedrich
  • Publication number: 20200062786
    Abstract: The invention relates to a process for the preparation of triaryl-organo borates from boronic ester and the use of these substances in photo initiator systems, photopolymer compositions comprising such photo initiator systems, a holographic medium comprising said photopolymer composition and the respective hologram.
    Type: Application
    Filed: November 7, 2017
    Publication date: February 27, 2020
    Inventors: Thomas RÖLLE, Ganugapati SATYANARAYANA, Sumana ROYCHOWDHURY, Ravindra Mahadev PATIL, Anup Krishnnan Appukuttan PILLAI
  • Patent number: 10514657
    Abstract: The invention relates to a method for selecting compounds which can be used as additives in photopolymer formulations for producing light holographic media, and to photopolymer formulations which contain at least one softener which are selected according to the claimed method. The invention also relates to the use of photopolymer formulations for producing holographic media.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: December 24, 2019
    Assignee: Covestro Deutschland AG
    Inventors: Thomas Roelle, Friedrich-Karl Bruder, Thomas Fäcke, Marc-Stephan Weiser, Dennis Hönel, Christian Diedrich
  • Patent number: 10444420
    Abstract: The invention relates to an indirect lighting arrangement (2, 2.1, 2.2, 2.3, 2.4, 2.5) comprising at least one cylindrical waveguide (4). At least one end (12.1, 12.2) of the cylindrical waveguide (4) is designed to couple light from a first light source (1) into the cylindrical waveguide (4), and the lateral surface (10) of the cylindrical wave guide (4) has a coupling section (6) which is designed to optically couple the cylindrical waveguide (4) to an arrangeable plate-shaped waveguide (16). At least the coupling section (6) has at least one holographic optical element (8) which is designed to emit light from the cylindrical waveguide (4) into the arrangeable plate-shaped waveguide (16).
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: October 15, 2019
    Assignee: Covestro Deutschland AG
    Inventors: Rainer Hagen, Günther Walze, Thomas Fäcke, Friedrich-Karl Bruder, Dennis Hönel, Thomas Rölle, Horst Berneth, Marc-Stephan Weiser
  • Publication number: 20190276479
    Abstract: The invention relates to a process for preparing triaryl organoborates proceeding from alkyl or cycloalkyl boronates in the presence of an n-valent cation 1/n Kn+ and to the use of these substances as co-initiator in photopolymer formulations.
    Type: Application
    Filed: November 7, 2017
    Publication date: September 12, 2019
    Inventors: Thomas RÖLLE, Horst BERNETH, Dennis HÖNEL, Friedrich-Karl BRUDER
  • Publication number: 20190263761
    Abstract: The present invention provides aromatic 4,6-bis-trichloromethyl-s-triazin-2-yl compounds of formula (I), a process for producing para-disubstituted benzonitriles as precursor to give compounds of formula (I) and a process for the production thereof.
    Type: Application
    Filed: April 17, 2019
    Publication date: August 29, 2019
    Inventors: Thomas Roelle, Koichi KAWAMURA, Guiseppe CHIOVETTA