Patents by Inventor Christian Harders

Christian Harders 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: 6841241
    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: April 15, 2002
    Date of Patent: January 11, 2005
    Assignee: tesa AG
    Inventors: Bernd Lühmann, Reinhard Storbeck, Christian Harder, Stephan Zöllner
  • Patent number: 6613870
    Abstract: Acrylate hot melt-based self-adhesive composition, characterized by K value of at least 60, in particular 65-80, and obtainable by concentrating or devolatilizing a solution of such a composition in a devolatilizing extruder to give a system which can be processed as a hot melt.
    Type: Grant
    Filed: April 24, 1997
    Date of Patent: September 2, 2003
    Assignee: tesa AG
    Inventors: Christian Harder, Andreas B. Kummer, Klaus Biethahn, Robert Tiburg
  • Publication number: 20030138624
    Abstract: Pressure-sensitive self-adhesive tape, characterized in that the self-adhesive tape has a backing layer which
    Type: Application
    Filed: January 18, 2000
    Publication date: July 24, 2003
    Inventors: AXEL BURMEISTER, CHRISTIAN HARDER, CHRISTOPH NAGEL, WOLFGANG SCHACHT, JOCHEN STAHR
  • Patent number: 6541707
    Abstract: The use of an adhesive tape as a bandaging tape for cables, the cables having a PVC-free sheathing including a PVC-free backing to at least one side of which a pressure-sensitive, acrylate-based adhesive composition has been applied, the adhesive tape causing no damage to the sheathing when bonded to the cables at a temperature of at least 100° C. and for a duration of at least 240 h.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: April 1, 2003
    Assignee: tesa AG
    Inventors: Klaus Külper, Christian Harder, Bernd Höwe, Frank Lange
  • Publication number: 20030031861
    Abstract: A label with enhanced proof against counterfeiting, comprising at least one carrier layer with an adhesive layer on its underside, wherein the adhesive layer is composed of a pressure sensitive and/or hotmelt adhesive and a heat-activatable (reactive) adhesive.
    Type: Application
    Filed: May 8, 2002
    Publication date: February 13, 2003
    Inventors: Sven Reiter, Arne Koops, Christian Harder, Hans Karl Engeldinger
  • Patent number: 6485600
    Abstract: Process for the radiation crosslinking of double-sided adhesive tapes, in which a backing material coated on both sides with adhesives is irradiated asymmetrically from both sides with different doses in an irradiation means.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: November 26, 2002
    Assignee: tesa AG
    Inventors: Hermann Neuhaus-Steinmetz, Christian Harder, Maren Klose, Dietlind Thalacker, Werner Karmann
  • Publication number: 20020168516
    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
    Type: Application
    Filed: April 15, 2002
    Publication date: November 14, 2002
    Inventors: Bernd Luhmann, Reinhard Storbeck, Christian Harder, Stephan Zollner
  • Publication number: 20020157767
    Abstract: Process for the radiation crosslinking of double-sided adhesive tapes, in which a backing material coated on both sides with adhesives is irradiated asymmetrically from both sides with different doses in an irradiation means.
    Type: Application
    Filed: September 30, 1999
    Publication date: October 31, 2002
    Inventors: HERMANN NEUHAUS-STEINMETZ, DR. CHRISTIAN HARDER, MAREN KLOSE, DIETLIND THALACKER, DR. WERNER KARMANN
  • Publication number: 20020125037
    Abstract: The use of an adhesive tape as a bandaging tape for cables, the cables having a PVC-free sheathing comprising a PVC-free backing to at least one side of which a pressure-sensitive, acrylate-based adhesive composition has been applied, said adhesive tape causing no damage to the sheathing when bonded to the cables at a temperature of at least 100° C. and for a duration of at least 240 h.
    Type: Application
    Filed: February 28, 2001
    Publication date: September 12, 2002
    Inventors: Klaus Kulper, Christian Harder, Bernd Howe, Frank Lange
  • 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
  • Patent number: 5877261
    Abstract: The use of isocyanates which are free from blocking agent for the chemical/thermal crosslinking of hot-melt pressure-sensitive acrylate adhesives (hot-melts).
    Type: Grant
    Filed: September 4, 1997
    Date of Patent: March 2, 1999
    Assignee: Beiersdorf AG
    Inventors: Christian Harder, Axel Burmeister, Christiop Nagel, Wolfgang Schacht
  • Patent number: 5545457
    Abstract: Self-adhesive lidding film for packaging electronic components, whose adhesive layer is covered with a non-adhesive covering in the center, wherein the adhesive layer comprises a mixture of two acrylate adhesive compositions of different polarity, the first, highly polar component containing from 1 to 20%, in particular from 6 to 10%, especially about 8%, of acrylic acid in the monomer composition, and the other, nonpolar component containing from 5 to 50%, in particular from 10 to 30%, especially about 20%, of stearyl acrylate in the monomer composition, and where an adhesion promoter or primer is present between the adhesive layer and the film support of the lidding film.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: August 13, 1996
    Assignee: Beiersdorf Aktiengesellschaft
    Inventors: Christian Harder, Bernd Howe, Karl Kuhlmann
  • Patent number: 5525422
    Abstract: Radiation-crosslinkable self-adhesive tape (dicing tape) for the temporary fixing of wafers, having a support comprising a radiation-transparent film and a radiation-crosslinkable self-adhesive composition, characterized in that the polymeric self-adhesive composition contains copolymerized radiation initiators.
    Type: Grant
    Filed: October 27, 1994
    Date of Patent: June 11, 1996
    Assignee: Beiersdorf Aktiengesellschaft
    Inventors: Manfred Spies, Christian Harder, Gunter Guse, Claudia Feldt, Robert Meyer