Patents by Inventor Kurt Wannemacher

Kurt Wannemacher 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).

  • Method for producing a core card, and core card for a laminate
    Patent number: 9987829
    Abstract: The invention relates to a method for producing a core card (20) with at least the steps of a) providing a reprocessed fibrous mixture having at least the following properties: the Brecht-Holl fine fraction is at most 50% by weight; the Brecht-Holl long fiber fraction is at least 10% by weight; the Brecht-Holl short fiber fraction is at most 60% by weight; and the ISO 1762 ash fraction is at most 20% by weight, b) preparing at least one fibrous suspension, c) processing the at least one fibrous suspension by carrying out at least one de-ashing of the fibrous suspension until the ash fraction of the dry component of the fibrous suspension is at most 15% by weight, and by adding at least one additive to the at least one fibrous suspension d) producing the laminar system from the at least one fibrous suspension.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: June 5, 2018
    Assignee: MAYR-MELNHOF KARTON AG
    Inventors: Zakaria Announ, Martin Muhlhauser, Kurt Wannemacher, Christian Neumann
  • METHOD FOR PRODUCING A CORE CARD, AND CORE CARD FOR A LAMINATE
    Publication number: 20160059530
    Abstract: The invention relates to a method for producing a core card (20) with at least the steps of a) providing a reprocessed fibrous mixture having at least the following properties: the Brecht-Holl fine fraction is at most 50% by weight; the Brecht-Holl long fibre fraction is at least 10% by weight; the Brecht-Holl short fibre fraction is at most 60% by weight; and the ISO 1762 ash fraction is at most 20% by weight, b) preparing at least one fibrous suspension, c) processing the at least one fibrous suspension by carrying out at least one de-ashing of the fibrous suspension until the ash fraction of the dry component of the fibrous suspension is at most 15% by weight, and by adding at least one additive to the at least one fibrous suspension d) producing the laminar system from the at least one fibrous suspension.
    Type: Application
    Filed: March 27, 2014
    Publication date: March 3, 2016
    Inventors: Zakaria Announ, Martin Mühlhauser, Kurt Wannemacher, Christian Neumann