Patents by Inventor Carol Zeszotarski

Carol Zeszotarski 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).

  • Thickener composition and method for thickening aqueous systems
    Patent number: 7741402
    Abstract: A composition and method whereby the same group that is attached to or within the backbone of an associative thickener is reversibly switched between being hydrophilic and hydrophobic in nature. When the group that is attached to or within the backbone is rendered hydrophilic, the aqueous thickener is pourable and readily incorporated into aqueous polymer compositions. When this group is rendered hydrophobic, the thickener performs its thickening function efficiently. Switching is readily accomplished by adjusting the pH of the associative thickener composition and the aqueous polymer composition being thickened.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: June 22, 2010
    Assignee: Rohm and Haas Company
    Inventors: Barrett Richard Bobsein, Melissa Merlau Johnson, John Joseph Rabasco, Carol Zeszotarski
  • Thickener composition and method for thickening aqueous systems
    Publication number: 20080234411
    Abstract: A composition and method whereby the same group that is attached to or within the backbone of an associative thickener is reversibly switched between being hydrophilic and hydrophobic in nature. When the group that is attached to or within the backbone is rendered hydrophilic, the aqueous thickener is pourable and readily incorporated into aqueous polymer compositions. When this group is rendered hydrophobic, the thickener performs its thickening function efficiently. Switching is readily accomplished by adjusting the pH of the associative thickener composition and the aqueous polymer composition being thickened.
    Type: Application
    Filed: October 11, 2007
    Publication date: September 25, 2008
    Inventors: Barrett Richard Bobsein, Melissa Merlau Johnson, John Joseph Rabasco, Carol Zeszotarski