Patents by Inventor Heidi Rosalia Perez Hernandez

Heidi Rosalia Perez Hernandez 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).

  • Methods and compositions for pigmented self-stratifying coatings
    Patent number: 8044140
    Abstract: A coating composition may include a polyol, a silsesquioxane, a polyurethane dendrimer, a crosslinker, and a pigment in contact with a dispersing agent. A process for preparing a coating composition is further disclosed including the step of contacting a polyol, a silsesquioxane, a polyurethane dendrimer, and a crosslinker to form a coating mixture dispersed within a solvent. The process further includes adding a pigment in contact with a dispersing agent to the coating mixture, and forming a self-stratifying coating having at least one layer, wherein the pigment resides substantially within one of the at least one layer.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: October 25, 2011
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc, Eastern Michigan University
    Inventors: Jamil Baghdachi, Heidi Rosalia Perez Hernandez, Cynthia Gazepis Templeman, Halfeng He
  • Self-stratifying automotive topcoat compositions and processes
    Patent number: 7863375
    Abstract: A process for preparing a coating composition includes contacting a polyol, a silsesquioxane, a polyurethane dendrimer, and a crosslinker, wherein the polyol, the silsesquioxane, the polyurethane dendrimer, and the crosslinker are dispersed within a solvent and forming a self-stratifying coating. Further, a coating composition includes a polyol, a silsesquioxane, a polyurethane dendrimer and a crosslinker forming a mixture dispersed within a solvent.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: January 4, 2011
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Jamil Baghdachi, Heidi Rosalia Perez Hernandez, Cynthia Gazepis Templeman
  • Self-Stratifying Automotive Topcoat Compositions and Processes
    Publication number: 20100087596
    Abstract: A process for preparing a coating composition includes contacting a polyol, a silsesquioxane, a polyurethane dendrimer, and a crosslinker, wherein the polyol, the silsesquioxane, the polyurethane dendrimer, and the crosslinker are dispersed within a solvent and forming a self-stratifying coating. Further, a coating composition includes a polyol, a silsesquioxane, a polyurethane dendrimer and a crosslinker forming a mixture dispersed within a solvent.
    Type: Application
    Filed: October 8, 2008
    Publication date: April 8, 2010
    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Jamil Baghdachi, Heidi Rosalia Perez Hernandez, Cynthia Gazepis Templeman