Patents Assigned to Hiecgst Aktiengesellshat
  • Electret fibers having improved charge stability, process for the production thereof and textile material containing these electret fibers.
    Patent number: 5871845
    Abstract: Electret fibers having improved charge stability are described which are composed of a material which predominantly contains a fiber-forming polymer or polycondensate and 0.01 to 30% by weight (preferably 0.01 to 10, in particular 0.1 to 5%, by weight), based on the weight of the material, of organic or organometallic charge control compounds, as contained in toners for electrophotographic processes, and a process for the production thereof. In addition, textile materials containing these electret fibers are described.
    Type: Grant
    Filed: March 9, 1994
    Date of Patent: February 16, 1999
    Assignee: Hiecgst Aktiengesellshat
    Inventors: Jorg Dahringer, Werner Groh, Hans-Tobias Macholdt, Peter Boening