Patents by Inventor Gisbert Leuschner

Gisbert Leuschner 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).

  • Stabilizing leather against thermal and photochemical decomposition
    Patent number: 5705083
    Abstract: Water-emulsifiable or -dispersible physical forms of sterically hindered mines, UV absorbers and antioxidants and their use for thermal and photochemical stabilization of materials of plastics, textile coatings, imitation leather and leather are described. The physical forms comprisea) a sterically hindered amine,b) a UV absorber and/orc) an antioxidant andd) if appropriate, water and other additives.
    Type: Grant
    Filed: June 10, 1996
    Date of Patent: January 6, 1998
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Franz Wyss, Vladimir Arnold, Helena Dbaly, Gisbert Leuschner, Manfred Rembold, Alois Puntener