Patents by Inventor Aurelia de las Cuestas Sheppard

Aurelia de las Cuestas Sheppard 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).

  • Low VOC aqueous compositions of phosphorus acid functional polymers and polyurethanes
    Patent number: 7919556
    Abstract: The present invention provides compositions that enable excellent hardness in coating applications, the compositions containing one or more copolymer having as copolymerized units one or more acrylic monomer with a phosphorus acid-functional group, a polymeric side chain containing multi-acid functional groups, a salt thereof, or a combination thereof, one or more polyurethane dispersion made from a high molecular weight polyol, and one or more coalescent having a normal boiling point of 190° C. or higher. The compositions may be ambient curable.
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: April 5, 2011
    Assignee: Rohm and Haas Company
    Inventors: Kathleen A. Koziski, Gary R. Larson, William J. Rosano, Aurelia de las Cuestas Sheppard
  • Low VOC aqueous compositions of phosphorus acid functional polymers and polyurethanes
    Publication number: 20090312469
    Abstract: The present invention provides compositions that enable excellent hardness in coating applications, the compositions containing one or more copolymer having as copolymerized units one or more acrylic monomer with a phosphorus acid-functional group, a polymeric side chain containing multi-acid functional groups, a salt thereof, or a combination thereof, one or more polyurethane dispersion made from a high molecular weight polyol, and one or more coalescent having a normal boiling point of 190° C. or higher. The compositions may be ambient curable.
    Type: Application
    Filed: June 8, 2009
    Publication date: December 17, 2009
    Inventors: Kathleen A. Koziski, Gary R. Larson, William J. Rosano, Aurelia de las Cuestas Sheppard