Patents by Inventor Amy S. Jensen

Amy S. Jensen 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).

  • Cationically stabilized slurries of calcined kaolin clay
    Patent number: 5537934
    Abstract: A method for preparing high solids suspensions of calcined clay which are stable without the necessity of adding a colloidal thickening agent and have minimal dilatancy. A calcined kaolin clay pigment, substantially free of anionic dispersant, is dispersed in water by addition of alkali to provide a neutral to mildly alkaline aqueous slurry. To the dispersed slurry, a water-soluble cationic organic polymer is added in minor amounts, to partially flocculate and thicken the slurry, thereby stabilizing the slurry against sedimentation.
    Type: Grant
    Filed: October 19, 1994
    Date of Patent: July 23, 1996
    Assignee: Engelhard Corporation
    Inventors: Amy S. Jensen, Paul R. Suitch, Sanjay Behl