Patents by Inventor Uwe Schümann

Uwe Schümann 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).

  • Double sided adhesive tape
    Patent number: 6958186
    Abstract: An adhesive tape comprising at least a three-layer product structure having the following layers A, B, and C with the layer sequence ABC: Layer A: heat activatable adhesive having a characteristic activation temperature TA of at least +30° C., Layer B: crosslinked polyurethane carrier material, Layer C: polyacrylate PSAs having a static glass transition temperature TG,C of not more than +15° C.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: October 25, 2005
    Assignee: tesa Aktiengesellschaft
    Inventors: Marc Husemann, Stephen Zöllner, Uwe Schümann
  • Process for producing an elastomer substrate web
    Patent number: 6689248
    Abstract: Process for producing an elastomer substrate web, comprising the following process steps: a) feeding in a polymer mixture, in particular into a mixer, b) conveying the ready-prepared polymer mixture to a calender, comprising at least two rollers, c) forming the polymer mixture out in the calender into a web, d) applying an auxiliary substrate in web form by means of a pressure-exerting roller, which is in contact with the last forming calender roller, for receiving the web, and e) if appropriate, cooling, crosslinking and/or winding up the web located on the auxiliary substrate.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: February 10, 2004
    Inventors: Jochen Stähr, Axel Burmeister, Hermann Neuhaus-Steinmetz, Uwe Schümann
  • Adhesive tape with thermally curable backing for masking a cathodic electrocoat primer
    Patent number: 6599624
    Abstract: An adhesive tape provided on one side with a self-adhesive composition and comprising a backing material comprising a polyester film coated with a crosslinked, thermally vulcanizable polyurethane.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: July 29, 2003
    Assignee: tesa AG
    Inventors: Uwe Schümann, Nicolai Böhm, Siegfried Krupke, Ulrike Wappler