Patents by Inventor Dagmar Behn

Dagmar Behn 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).

  • Stabilized cyanoacrylate adhesives
    Patent number: 6642337
    Abstract: The problem addressed by the invention was to find an anionic polymerization inhibitor for cyanoacrylate adhesives containing one or more cyanoacrylates, stabilizers against anionic and radical polymerization and auxiliaries typically used in such adhesive systems which, besides a reliable inhibiting effect, would counteract any increase in the setting time after storage. This problem was solved by using 2-oxo-1,3,2-dioxathiolanes as inhibitors.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: November 4, 2003
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Hanns-Roland Misiak, Dagmar Behn
  • Fluorescent cyanoacrylate adhesive
    Patent number: 6204309
    Abstract: Cyanoacrylate adhesive containing a pyrylium salt as a fluorescent dye are useful for bonding various substrates, particularly transparent plastics. The pyrylium salt may be present in relatively large quantities in the adhesive without any adverse effect on the storage stability and adhesive properties, yet shows very little inherent coloration in visible light.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: March 20, 2001
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Hanns R. Misiak, Heinz C. Nicolaisen, Annette Schroeter, Dagmar Behn
  • Cyanoacrylate adhesive
    Patent number: 6201088
    Abstract: Cyanoacrylate adhesives which have increased heat resistance, yet also exhibit good storage stability and acceptable cure times, are obtained by using 2-cyanopentadienoic acid esters in combination with alkylene bis-(2-cyanopentadienoates).
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: March 13, 2001
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Werner Gruber, Yuri Gololobov, Hanns Misiak, Dagmar Behn