Patents by Inventor Reiner Delp

Reiner Delp 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).

  • Laser-markable pigments containing an absorber coated with a marker
    Patent number: 7202288
    Abstract: Laser-markable pigments which are distinguished by the fact that an absorber is coated with a marker and optionally with a diffusion barrier are described. Further, processes for the preparation of the laser-markable pigments and methods for using them are described. The absorber is preferably an inorganic pigment or a filler. The marker is preferably an intrinsically laser-markable polymer, particularly a polyethylene terephthalate, acrylonitrile-butadiene-styrene, polystyrene, polyphenylene ether, liquid-crystal polymer or polyphenylene sulfide.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: April 10, 2007
    Assignee: Merck Patent GmbH
    Inventors: Helge Bettina Kniess, Gerhard Pfaff, Matthias Kuntz, Hans-Juergen Brehm, Reiner Delp
  • Optically variable marking
    Patent number: 7081282
    Abstract: The invention relates to an optically variable marking comprising a semiopaque substrate with a first surface that is covered with an optically variable layer that is for example a liquid crystal polymer layer or a layer comprising pearlescent pigments, and a second surface that is partially covered with a metal layer in the shape of a pattern, to methods of its preparation and to its use for decorative or security applications.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: July 25, 2006
    Assignee: Merck Patent GmbH
    Inventors: Matthias Kuntz, Reiner Delp, Rodney Riddle, John Patrick, Robert Hammond-Smith
  • Colored inscription and marking of plastics and surface coatings
    Patent number: 6924077
    Abstract: The present invention relates to the colored inscription or marking of plastics and surface coatings, including powder coatings, in which a colorant is transferred into the plastic or surface coating by laser radiation with the aid of a laser light-absorbent substance.
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: August 2, 2005
    Assignee: Merck Patent GmbH
    Inventors: Reiner Delp, Matthias Kuntz
  • Luminescent plastics
    Publication number: 20050096420
    Abstract: The present invention relates to coloured plastics having improved luminescence properties comprising one or more luminescent colorants and one or more transparent and/or semitransparent effect pigments, to a process for the preparation of these plastics, and to mouldings produced therefrom.
    Type: Application
    Filed: November 3, 2004
    Publication date: May 5, 2005
    Inventors: Reiner Delp, Rainer Linzmeier
  • Laser-markable pigments
    Publication number: 20040157975
    Abstract: The present invention relates to laser-markable pigments which are distinguished by the fact that an absorber is coated with a marker and optionally with a diffusion barrier, to a process for the preparation of the laser-markable pigments, and to the use thereof.
    Type: Application
    Filed: November 5, 2003
    Publication date: August 12, 2004
    Inventors: Helge Bettina Kniess, Gerhard Pfaff, Matthias Kuntz, Hans-Juergen Brehm, Reiner Delp
  • Process for laser marking of a liquid crystal film
    Publication number: 20040126503
    Abstract: The invention relates to process for laser marking of a liquid crystal film. The invention further relates to a liquid crystal film obtained by this method and to its use in optical, decorative or security applications, for optical information storage or the preparation of liquid crystal pigments.
    Type: Application
    Filed: December 18, 2003
    Publication date: July 1, 2004
    Inventors: Matthias Kuntz, Reiner Delp, John Patrick, Rodney Riddle, Robert Hammond-Smith
  • Laser-markable plastics
    Patent number: 6727308
    Abstract: The present invention relates to laser-markable plastics of which a feature is that they comprise as dopant at least one metal powder and/or semimetal powder selected from the group consisting of aluminum, boron, titanium, magnesium, copper, tin, silicon and zinc and one or more effect pigments based on phyllosilicates.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: April 27, 2004
    Assignee: Merck Patent Gesellschaft mit beschränkter Haftung
    Inventors: Helge Kniess, Dieter Heinz, Reiner Delp, Gerhard Pfaff, Matthias Kuntz
  • Colored inscription and marking of plastics and surface coatings
    Publication number: 20040013969
    Abstract: The present invention relates to the colored inscription or marking of plastics and surface coatings, including powder coatings, in which a colorant is transferred into the plastic or surface coating by laser radiation with the aid of a laser light-absorbent substance.
    Type: Application
    Filed: July 26, 2002
    Publication date: January 22, 2004
    Applicant: Merck Patent GmbH
    Inventors: Reiner Delp, Matthias Kuntz
  • Optically variable marking
    Publication number: 20030012935
    Abstract: The invention relates to an optically variable marking comprising a semiopaque substrate with a first surface that is covered with an optically variable layer that is for example a liquid crystal polymer layer or a layer comprising pearlescent pigments, and a second surface that is partially covered with a metal layer in the shape of a pattern, to methods of its preparation and to its use for decorative or security applications.
    Type: Application
    Filed: July 1, 2002
    Publication date: January 16, 2003
    Applicant: Merck Patent GmbH
    Inventors: Matthias Kuntz, Reiner Delp, Rodney Riddle, John Patrick, Robert Hammond-Smith
  • Laser-markable plastics
    Patent number: 6376577
    Abstract: The present invention relates to laser-markable plastics which comprise, as dopant, graphite particles having one or more coatings.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: April 23, 2002
    Assignee: Merck Patentgesellschaft
    Inventors: Helge Kniess, Dieter Heinz, Reiner Delp, Gerhard Pfaff, Matthias Kuntz
  • Laser-markable plastics
    Publication number: 20010030179
    Abstract: The present invention relates to laser-markable plastics of which a feature is that they comprise as dopant
    Type: Application
    Filed: April 13, 2001
    Publication date: October 18, 2001
    Inventors: Helge Knieb, Dieter Heinz, Reiner Delp, Gerhard Pfaff, Matthias Kuntz
  • Laser-markable plastics
    Patent number: 6291551
    Abstract: The present invention relates to laser-markable plastics of which a feature is that they comprise as dopant anthracene- or pentaerythritol-coated effect pigments or a mixture comprising one or more effect pigments and anthracene and/or pentaerythritol.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: September 18, 2001
    Assignee: Merck Patent Gesellschaft mit Beschrankter Haftung
    Inventors: Helge Kniess, Dieter Heinz, Reiner Delp, Gerhard Pfaff, Matthias Kuntz
  • Laser-markable plastics
    Publication number: 20010021731
    Abstract: The present invention relates to laser-markable plastics which comprise, as dopant, graphite particles having one or more coatings.
    Type: Application
    Filed: December 18, 2000
    Publication date: September 13, 2001
    Inventors: Helge Kniess, Dieter Heniz, Reiner Delp, Gerhard Pfaff, Matthias Kuntz