Patents Assigned to Citius Burotechnik
  • Patent number: 6162492
    Abstract: The description relates to a process for producing a multi-layer correcting and/or marking material. In said process, a film is applied to a substrate which can be released therefrom and in particular contains a dye and/or pigment. A further layer containing an adhesive is then applied over the film thus obtained. The removable film is applied in the form of an aqueous suspension containing a brittle and a film-forming binder. The process makes it possible to dispense with organic solvents. A correcting or marking agent thus produced exhibits good tear-off properties.
    Type: Grant
    Filed: July 21, 1998
    Date of Patent: December 19, 2000
    Assignee: Citius Burotechnik GmbH
    Inventor: Krishnamoorthy Narayanan
  • Patent number: D317127
    Type: Grant
    Filed: October 25, 1988
    Date of Patent: May 28, 1991
    Assignee: Citius Burotechnik
    Inventor: Dieter Zubek