Patents by Inventor Juergen Kempkes

Juergen Kempkes 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).

  • Use of Raw Gel in Formulations on the Basis of Polyurethane Dispersions
    Publication number: 20240018293
    Abstract: The present invention relates to an aqueous dispersion at least containing (A) at least one polyurethane, (B) at least one fresh sol and (C) optionally further additives, wherein the at least one polyurethane is anionically hydrophilized, to a process for producing the dispersion, to the use of the dispersion for producing an adhesive composition, to a corresponding adhesive composition, to an adhesive laminate containing at least one substrate bonded with this adhesive composition, to a process for producing an adhesive laminate and to the use of a fresh sol for achieving a thickening effect in an aqueous polyurethane dispersion.
    Type: Application
    Filed: October 22, 2021
    Publication date: January 18, 2024
    Inventors: Peter Kueker, Christoph Thiebes, Udo Wipperfuerth, Juergen Kempkes, Dirk Dijkstra, Ruediger Musch
  • Low-viscosity aqueous adhesive polymer dispersions
    Patent number: 9040438
    Abstract: The invention relates to low-viscosity, low-monomer aqueous polymer dispersions based on polychloroprene, and a process for the preparation thereof and the use thereof as a contact adhesive.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: May 26, 2015
    Assignee: Bayer MaterialScience AG
    Inventors: Dirk Achten, Peter Kueker, Juergen Kempkes, Bianka Lorenz, Peter Reichert, Winfried Jeske, Jose Colinas-Martinez
  • Method for producing polymeric solids
    Patent number: 8765842
    Abstract: The invention relates to a method for producing polymeric solids free of auxiliary emulators starting from polymer latices (dispersion), wherein a polymer dispersion with a starting ph-value greater than 9 is set to a ph-value of 6 to 9 by adding gaseous carbon dioxide and the polymer dispersion is subsequently coagulated by shearing and/or freezing.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: July 1, 2014
    Assignee: LANXESS Deutschland GmbH
    Inventors: Dirk Achten, Peter Kueker, Jürgen Kempkes, Bianka Lorenz, Werner Obrecht, Annika Stobrawe
  • Formulations based on anionically stabilised, aqueous polymer dispersions
    Patent number: 8658760
    Abstract: Formulations based on anionically stabilized aqueous polymer dispersions, containing polychloroprene, to which carbon dioxide (CO2) has been added, to a process for their preparation, to a device for increasing the carbon dioxide content of formulations based on anionically stabilized aqueous polymer dispersions, and to the use thereof in the production of adhesives, sealants, large-volume parts or coatings.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: February 25, 2014
    Assignee: Bayer MaterialScience AG
    Inventors: Dirk Achten, Peter Kueker, Juergen Kempkes, Bianka Lorenz, Mathias Matner, Winfried Jeske, Jose Colinas-Martinez
  • METHOD FOR PRODUCING POLYMERIC SOLIDS
    Publication number: 20120101216
    Abstract: The invention relates to a method for producing polymeric solids free of auxiliary emulators starting from polymer latices (dispersion), wherein a polymer dispersion with a starting ph-value greater than 9 is set to a ph-value of 6 to 9 by adding gaseous carbon dioxide and the polymer dispersion is subsequently coagulated by shearing and/or freezing.
    Type: Application
    Filed: March 17, 2010
    Publication date: April 26, 2012
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Dirk Achten, Peter Kueker, Jürgen Kempkes, Bianka Lorenz, Werner Obrecht, Annika Stobrawe
  • FORMULATIONS BASED ON ANIONICALLY STABILISED, AQUEOUS POLYMER DISPERSIONS
    Publication number: 20110237696
    Abstract: Formulations based on anionically stabilised aqueous polymer dispersions, containing polychloroprene, to which carbon dioxide (CO2) has been added, to a process for their preparation, to a device for increasing the carbon dioxide content of formulations based on anionically stabilised aqueous polymer dispersions, and to the use thereof in the production of adhesives, sealants, large-volume parts or coatings.
    Type: Application
    Filed: August 26, 2009
    Publication date: September 29, 2011
    Applicant: Bayer MaterialScience AG
    Inventors: Dirk Achten, Peter Kueker, Juergen Kempkes, Bianka Lorenz, Mathias Matner, Winfried Jeske, Jose Colinas-Martinez
  • LOW-VISCOSITY AQUEOUS ADHESIVE POLYMER DISPERSIONS
    Publication number: 20090053949
    Abstract: The invention relates to low-viscosity, low-monomer aqueous polymer dispersions based on polychloroprene, and a process for the preparation thereof and the use thereof as a contact adhesive.
    Type: Application
    Filed: August 19, 2008
    Publication date: February 26, 2009
    Applicant: Bayer MaterialScience AG
    Inventors: Dirk Achten, Peter Kueker, Juergen Kempkes, Bianka Lorenz, Peter Reichert, Winfried Jeske, Jose Colinas-Martinez