Patents by Inventor Joseph Joseph Rabasco

Joseph Joseph Rabasco 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: 7985795
    Abstract: A polymer composition with blocks of hydrophobes attached to or within the backbone of an associative thickener. The blocks are composed of two or more units of the same or different hydrophobes whereby the hydrophobe is reversibly switched between being hydrophilic and hydrophobic in nature. When the hydrophobe is rendered hydrophilic, the aqueous thickener is pourable and readily incorporated into aqueous polymer compositions. When this hydrophobe is rendered hydrophobic, the thickener performs its thickening function efficiently, especially in tinted systems. Switching is readily accomplished by adjusting the pH of the associative thickener composition and the aqueous polymer composition being thickened.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: July 26, 2011
    Assignee: Rohm and Haas Company
    Inventors: Barrett Richard Bobsein, Melissa Merlau Johnson, Joseph Joseph Rabasco, Ling Li
  • Thickener composition and method for thickening aqueous systems
    Publication number: 20100076145
    Abstract: A polymer composition with blocks of hydrophobes attached to or within the backbone of an associative thickener. The blocks are composed of two or more units of the same or different hydrophobes whereby the hydrophobe is reversibly switched between being hydrophilic and hydrophobic in nature. When the hydrophobe is rendered hydrophilic, the aqueous thickener is pourable and readily incorporated into aqueous polymer compositions. When this hydrophobe is rendered hydrophobic, the thickener performs its thickening function efficiently, especially in tinted systems. Switching is readily accomplished by adjusting the pH of the associative thickener composition and the aqueous polymer composition being thickened.
    Type: Application
    Filed: September 18, 2009
    Publication date: March 25, 2010
    Inventors: Barrett Richard Bobsein, Melissa Merlau Johnson, Joseph Joseph Rabasco, Ling Li