Patents Represented by Attorney Diderico van Eyle

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  • Process for preparing dicycloaliphatic amines
    Patent number: 6077975
    Abstract: A low-pressure process for the hydrogenation of aromatic amines to give the corresponding symmetrical dicycloaliphatic amines in the presence of rhodium catalysts which are unmodified or modified by Ir, Ru, Os, Pd and/or Pt or mixtures of these metals, on supports modified by oxides of Cr, Mo, W, Mn and/or Re or mixtures of these oxides.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: June 20, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Reinhard Langer, Gerd-Michael Petruck