Patents by Inventor Michael L. Dematte

Michael L. Dematte 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).

  • Basecoated substrate for an inkjet recording sheet
    Patent number: 6468395
    Abstract: The inkjet recording sheet substrate of the present invention comprises a cellulosic sheet support, e.g., paper, having on at least one surface thereof a base coating comprising pigment and binder. The preferred pigment component is a 50/50 mixture of kaolin clay and calcined clay, and the preferred binder component is polyvinyl acetate. This combination of binder and pigment has been found to possess a high absorption capacity for the vehicle of an inkjet ink and good compatibility with ink receptive top coatings applied over the base coat.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: October 22, 2002
    Assignee: MeadWestvaco Corporation
    Inventors: Hung-Tai Chao, Michael L. DeMatte
  • Basecoated substrate for an inkjet recording sheet
    Patent number: 6203894
    Abstract: The inkjet recording sheet substrate of the present invention comprises a cellulosic sheet support, e.g., paper, having on at least one surface thereof a base coating comprising pigment and binder. The preferred pigment component is a 50/50 mixture of kaolin clay and calcined clay, and the preferred binder component is polyvinyl acetate. This combination of binder and pigment has been found to possess a high absorption capacity for the vehicle of an inkjet ink and good compatibility with ink receptive top coatings applied over the base coat.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: March 20, 2001
    Assignee: Westvaco Corporation
    Inventors: Hung-Tai Chao, Michael L. Dematte
  • Coated paper for inkjet printing
    Patent number: 5985424
    Abstract: The inkjet recording sheet of the present invention comprises a cellulosic sheet support, e.g., paper, having on at least one surface thereof an inkjet coating comprising, in combination, a porous base coat having a high absorption capacity for absorbing the vehicle of an inkjet ink, and an ink receiving coat having a superior capacity for keeping the dyes in the ink on the surface with minimal spreading, tailing or blurring, to provide a sharp image.
    Type: Grant
    Filed: February 9, 1998
    Date of Patent: November 16, 1999
    Assignee: Westvaco Corporation
    Inventors: Michael L. DeMatte, Sean T. Kelly
  • Paper coating composition
    Patent number: 5500191
    Abstract: Paper coating formulations comprising sulfated oleic acid as a lubricant additive thereto are disclosed and are characterized by improved healing properties which permit coating at higher solids levels over formulations containing prior art lubricants when applied to the paper with a blade coater.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: March 19, 1996
    Assignee: Westvaco Corporation
    Inventor: Michael L. DeMatte