Patents by Inventor Stephan Zöllner

Stephan Zöllner 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).

  • Patent number: 6512022
    Abstract: Structured polyacrylates obtainable by crosslinking, induced by UV irradiation, of a polymer mixture comprising the following components: a) polyacrylate copolymers of the following monomers a1) acrylic acid and/or acrylic esters of the following formula CH2=CH(R1)(COOR2),  where R1=H or CH3 and R2 is an alkyl chain having 1-20 carbon atoms, at 70-99% by weight, based on component (a), a2) olefinically unsaturated monomers containing functional groups, at 0-15% by weight, based on component (a), a3) tert-butyl acrylate, at 1-15% by weight, based on component (a), and b) a photocationic initiator at 0.01-25% by weight, based on the overall polymer mixture, the structuring of the polyacrylates comprising the presence in the polyacrylates of regions of high crosslinking alongside regions of low crosslinking and/or noncrosslinked regions.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: January 28, 2003
    Assignee: tesa AG
    Inventors: Marc Husemann, Stephan Zöllner
  • Patent number: 6432529
    Abstract: Non-fogging self-adhesive tape comprising a non-fogging backing to at least one side of which a non-fogging pressure-sensitive adhesive composition has been applied.
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: August 13, 2002
    Assignee: tesa AG
    Inventors: Christian Harder, Stephan Zöllner, Jürgen Sievers, Bernd Dietz, Frank Ganschow, Andreas Kummer
  • Patent number: 6402875
    Abstract: Repeated use of an adhesive-film laminate for bonds which can be redetached without residue by pulling on the laminate in the direction of the bond plane, the laminate employed comprising a) an elastic support with a resilience of at least 50% b) coated on at least one side with a solvent or hot-melt pressure-sensitive acrylate adhesive or dispersion pressure-sensitive acrylate adhesive.
    Type: Grant
    Filed: September 24, 1998
    Date of Patent: June 11, 2002
    Assignee: testa AG
    Inventors: Bernd Lühmann, Reinhard Storbeck, Christian Harder, Stephan Zöllner
  • Patent number: 6210796
    Abstract: Adhesive coating film consisting of a) a radiation-cured coat which comprises from 40 to 90% by weight, preferably from 50 to 60% by weight, of urethane acrylate, from 0 to 20% by weight, preferably from 10 to 15% by weight, of polyether acrylate, from 10 to 50% by weight, preferably from 25 to 40% by weight, of reactive diluent, from 0 to 30% by weight of pigments from 0 to 10% by weight, preferably from 2 to 5% by weight, of a carboxy-functional (meth)acrylic esther [sic], from 0 to 10% by weight of other customary coatings fillers, and in the case of curing with UV radiation, from 0 to 10% by weight, preferably from 3 to 6% by weight, of photoinitiator, and b) which carries on one side an adhesive composition which has free NCO groups in the freshly applied adhesive composition, can be plastified thermally, especially under the intended processing conditions, and has a markedly weak surface tack.
    Type: Grant
    Filed: May 1, 1998
    Date of Patent: April 3, 2001
    Assignee: BASF Coatings AG
    Inventors: Martin Lobert, Wolfgang Kranig, Werner Kluge-Paletta, Michael Kreitz, Stephan Zöllner, Christian Harder, Bodo Szonn