Patents by Inventor Nicolai Wickert

Nicolai Wickert 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).

  • Compositions for removing finishing agents containing silicone oil, aqueous dispersions prepared therefrom and their use
    Patent number: 5728179
    Abstract: A process for removing finishing agents containing silicone oil from textile substrates in an aqueous medium free of halogenated hydrocarbons, wherein the removing agent is a composition containing, as an essential ingredient, a surfactant carrying cationic groups on the surfactant framework structure, and which may also contain acids, non-ionic surfactants, water-soluble non-ionic polymers and solvents (free of halogenated hydrocarbons).
    Type: Grant
    Filed: November 20, 1995
    Date of Patent: March 17, 1998
    Assignee: Bayer Aktiengesellschaft
    Inventors: Matthias Gehling, Josef Pfeiffer, Rainer Tostmann, Nicolai Wickert