Patents Represented by Attorney Nicenor A. Kohnoke

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  • Pure-coloured, readily dispersible iron oxide red pigments with high grinding stability
    Patent number: 7294191
    Abstract: The present invention relates to pure-coloured, readily dispersible iron oxide red pigments having high grinding stability, to a process for preparing them, and to their use.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: November 13, 2007
    Assignee: LANXESS Deutschland GmbH
    Inventors: Carsten Rosenhahn, Wilfried Burow, Volker Schneider