Patents by Inventor Heiko Leydecker

Heiko Leydecker 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: 7226967
    Abstract: Hot-melt pressure-sensitive adhesive based one or more non-thermoplastic elastomers, at least comprising 100 parts by mass of the non-thermoplastic elastomer(s), from 1 to 200 parts by mass of one or more tackifying resins, from 1 to 100 parts by mass of one or more reactive phenolic resins whose methylol content is from 1 to 20% by weight, based on the reactive phenolic resin, from 1 to 100 parts by mass of accelerator substances.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: June 5, 2007
    Assignee: tesa AG
    Inventors: Axel Burmeister, Sven Hansen, Heiko Leydecker, Christian Kreft, Jochen Stahr
  • Publication number: 20060234047
    Abstract: Adhesive tape comprising a backing comprising an oriented thermoplastic film and a coating comprising a solventlessly prepared pressure-sensitive adhesive composition based on non-thermoplastic elastomers such as natural rubber and tackifying resins, characterized in that the pressure-sensitive adhesive composition comprises a thermally labile crosslinking system.
    Type: Application
    Filed: June 15, 2006
    Publication date: October 19, 2006
    Applicant: tesa Aktiengesellschaft
    Inventors: Dieter Wenninger, Werner Karmann, Gerhard Bir, Sven Hansen, Heiko Leydecker, Stefanie Kaprolat, Ralf Hirsch, Klaus Massow
  • Publication number: 20050004287
    Abstract: Hot-melt pressure-sensitive adhesive based one or more non-thermoplastic elastomers, at least comprising 100 parts by mass of the non-thermoplastic elastomer(s), from 1 to 200 parts by mass of one or more tackifying resins, from 1 to 100 parts by mass of one or more reactive phenolic resins whose methylol content is from 1 to 20% by weight, based on the reactive phenolic resin, from 1 to 100 parts by mass of accelerator substances.
    Type: Application
    Filed: July 29, 2004
    Publication date: January 6, 2005
    Applicant: Bayer AG
    Inventors: Axel Burmeister, Sven Hansen, Heiko Leydecker, Christian Kreft, Jochen Stahr
  • Patent number: 6822029
    Abstract: Hot-melt pressure-sensitive adhesive based one or more non-thermoplastic elastomers, at least comprising 100 parts by mass of the non-thermoplastic elastomer(s), from 1 to 200 parts by mass of one or more tackifying resins, from 1 to 100 parts by mass of one or more reactive phenolic resins whose methylol content is from 1 to 20% by weight, based on the reactive phenolic resin, from 1 to 100 parts by mass of accelerator substances.
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: November 23, 2004
    Assignee: tesa AG
    Inventors: Axel Burmeister, Sven Hansen, Heiko Leydecker, Christian Kreft, Jochen Stähr
  • Patent number: 6822048
    Abstract: Hot-melt pressure-sensitive adhesive based one or more non-thermoplastic elastomers, at least comprising 100 parts by mass of the non-thermoplastic elastomer(s), from 1 to 200 parts by mass of one or more tackifying resins, and also one or more polyfunctional isocyanates which are free from blocking agent, the hot-melt pressure-sensitive adhesive comprising from 8 mmol to 5 mol of the reactive isocyanate groups of the isocyanate per kilogram of the non-thermoplastic elastomer(s) used.
    Type: Grant
    Filed: August 11, 2000
    Date of Patent: November 23, 2004
    Assignee: tesa Aktiengesellschaft
    Inventors: Axel Burmeister, Sven Hansen, Heiko Leydecker, Christian Kreft, Jochen Stähr
  • Patent number: 6780271
    Abstract: Process for the continuous solvent-free and mastication-free production of self-adhesive compositions based on non-thermoplastic elastomers in a continuously operating apparatus having a filling section and a compounding section, comprising a) feeding the solid components of the self-adhesive composition, such as elastomers and resins, into the filling section of the apparatus, optionally feeding of fillers, colorants and/or crosslinkers, b) transferring the solid components of the self-adhesive composition from the filling section to the compounding section, c) adding the liquid components of the self-adhesive composition, such as plasticizers, crosslinkers and/or further tackifier resins to the compounding section, d) preparing a homogeneous self-adhesive composition in the compounding section, and e) discharging the self-adhesive composition.
    Type: Grant
    Filed: June 21, 2000
    Date of Patent: August 24, 2004
    Assignee: tesa AG
    Inventors: Axel Burmeister, Sven Hansen, Frank Henke, Ralf Hirsch, Heiko Leydecker, Klaus Massow, Jochen Stähr
  • Patent number: 6284328
    Abstract: Process for producing adhesive tapes in which adhesive tapes coated on one side with an adhesive composition are subjected to radiation crosslinking, the irradiation of the adhesive tape taking place through the backing material of the adhesive tape onto the adhesive composition in such a way that the backing material and that side of the adhesive composition facing the backing material receive a dose of from 30 to 200 kGy, in particular 100 kGy, and the acceleration voltage during the irradiation being chosen such that the dose on the open side of the adhesive composition has fallen from 0 to 60 kGy, in particular from 10 to 20 kGy.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: September 4, 2001
    Assignee: Beiersdorf AG
    Inventors: Heiko Leydecker, Manfred Spies, Hermann Neuhaus-Steinmetz
  • Patent number: 6150017
    Abstract: Pressure-sensitive hotmelt adhesive composition based on non-thermoplastic elastomers, obtained bya) preparing, as the preliminary batch, a composition comprising the elastomers and one or more of the following additives such as fillers, anti-ageing agents, plasticizers and tackifier resins in an intensively shearing, intensively cooling mixer and without solvent, the composition having a final temperature of from 100.degree. C. to 160.degree. C.,b) mixing and homogenizing the preliminary batch in a second mixer with one or more of the following additives such as fillers, anti-ageing agents, plasticizers and tackifier resins, without solvent, the composition having a final temperature of from 100.degree. C. to 160.degree. C.,where the total residence time of the composition at temperatures over 100.degree. C. does not exceed a figure of 6 minutes, so that the resulting hotmelt adhesive composition has a viscosity of more than 900 Pa*s, in particular from 900 Pa*s to 1200 Pa*s, at 130.degree. C.
    Type: Grant
    Filed: January 14, 1998
    Date of Patent: November 21, 2000
    Assignee: Beiersdorf AG
    Inventors: Axel Burmeister, Heiko Leydecker, Jochen Stahr
  • Patent number: 5804510
    Abstract: Fabric adhesive tape for wrapping cable harnesses, havinga) a permeable fabric base containing a halogen- and antimony-free flameproofing agent andb) a polar self-adhesive composition containing a halogen-and antimony-free flameproofing agent.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: September 8, 1998
    Assignee: Beiersdorf Aktiengesellschaft
    Inventors: Manfred Spies, Heiko Leydecker, Klaus Kulper