Patents by Inventor Werner Kullick

Werner Kullick 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).

  • Pigment preparations
    Patent number: 4217266
    Abstract: A pigment preparation containing a pigment, a nonionic surface-active agent and, as a thermoplastic finishing agent, a copolymer which has an average molecular weight of 80,000 to 160,000 and consists of 90-50% by weight of .alpha.-methylstyrene and 10-50% by weight of acrylonitrile, and its use for the mass coloring of thermoplastic moulding compositions.
    Type: Grant
    Filed: January 11, 1979
    Date of Patent: August 12, 1980
    Assignee: Bayer Aktiengesellschaft
    Inventors: Alfred Pischtschan, Karlheinz Wolf, Reinhold Hornle, Fritz Bremer, Bernhard Arnold, Werner Kullick