Patents by Inventor Jacobus T. M. Bakkum

Jacobus T. M. Bakkum 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).

  • Process for decolorizing polyethylene polyamines with a chlorinated hydrocarbon
    Patent number: 4609436
    Abstract: A process for decolorizing polyethylene polyamines using a chlorinated hydrocarbon. The discolored polyethylene polyamine and chlorinated hydrocarbon are contacted to form a decolorizing mixture, and the mixture is distilled. The decolored polyethylene polyamine is collected from the distillate.
    Type: Grant
    Filed: January 4, 1985
    Date of Patent: September 2, 1986
    Assignee: The Dow Chemical Company
    Inventor: Jacobus T. M. Bakkum