Patents by Inventor Knut Menke

Knut Menke 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 the production of paper, cardboard and card
    Patent number: 7918965
    Abstract: Process for the production of paper, board and cardboard by draining a paper stock with sheet formation in the presence of a retention aid system comprising (i) at least one polymer comprising vinylamine units, in the form of the free bases, of the salts and/or in quaternized form, as the sole cationic polymer, (ii) at least one linear, anionic polymer having a molar mass Mw of at least 1 million and/or at least one branched, anionic, water-soluble polymer and/or bentonite and/or silica gel and (iii) at least one particulate, anionic, crosslinked, organic polymer having a mean particle diameter of at least 1 ?m and an intrinsic viscosity of less than 3 dl/g, and use of the retention aid system comprising the components (i), (ii) and (iii) as an additive in the production of paper, board and cardboard.
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: April 5, 2011
    Assignee: BASF Aktiengesellschaft
    Inventors: Marc Leduc, Oliver Koch, Simon Champ, Rainer Blum, Andreas Merkel, Knut Menke
  • Method For the Production of Paper, Cardboard and Card
    Publication number: 20080196852
    Abstract: Process for the production of paper, board and cardboard by draining a paper stock with sheet formation in the presence of a retention aid system comprising (i) at least one polymer comprising vinylamine units, in the form of the free bases, of the salts and/or in quaternized form, as the sole cationic polymer, (ii) at least one linear, anionic polymer having a molar mass Mw of at least 1 million and/or at least one branched, anionic, water-soluble polymer and/or bentonite and/or silica gel and (iii) at least one particulate, anionic, crosslinked, organic polymer having a mean particle diameter of at least 1 ?m and an intrinsic viscosity of less than 3 dl/g, and use of the retention aid system comprising the components (i), (ii) and (iii) as an additive in the production of paper, board and cardboard.
    Type: Application
    Filed: September 5, 2006
    Publication date: August 21, 2008
    Applicant: BASF SE
    Inventors: Marc Leduc, Oliver Koch, Simon Champ, Rainer Blum, Andreas Merkel, Knut Menke