Patents by Inventor Pamela G. Drage

Pamela G. Drage 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).

  • Patent number: 5384013
    Abstract: There is disclosed an aqueous paper coating composition which comprises at least 45% by weight of a particulate pigment dispersed with a dispersing agent, and an adhesive; characterized in that said dispersing agent comprises an anionic polyelectrolyte and a cationic polyelectrolyte, the cationic polyelectrolyte being present in an amount sufficient to render the particles cationic, in that said adhesive is a cationic or non-ionic adhesive and in that said particulate pigment is one which is not capable of being dispersed in water at high solids, and following vigorous mixing, in the sole presence of said cationic polyelectrolyte. Also disclosed is a method for making the paper coating composition, a method for coating a paper with a paper coating composition and the resulting coated paper. The coated paper of the invention is particularly suited to recycling.
    Type: Grant
    Filed: June 4, 1992
    Date of Patent: January 24, 1995
    Assignee: ECC International Limited
    Inventors: John C. Husband, Richard Bown, Pamela G. Drage