Patents by Inventor Sandra L. Pratt

Sandra L. Pratt 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).

  • Silicone modified acrylic latex sealant
    Patent number: 5216057
    Abstract: The wet soak adhesion of acrylic latex sealants is improved by incorporating micelles of polysiloxane oil into the emulsion.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: June 1, 1993
    Assignee: General Electric Company
    Inventors: Sandra L. Pratt, Gary M. Lucas
  • Shelf stable curable silicone caulking compositions
    Patent number: 4814368
    Abstract: Curable silicone caulking compositions are provided, employing an ionically polymerized silicone emulsion, a tetrafunctional organosilane, a tin condensation catalyst, calcium carbonate and tetramethylbutylguanidine, as a shelf stabilizer.
    Type: Grant
    Filed: May 31, 1988
    Date of Patent: March 21, 1989
    Assignee: General Electric Company
    Inventors: Judith Stein, Tracey M. Leonard, Sandra L. Pratt
  • Non-corrosive silicone RTV compositions
    Patent number: 4578492
    Abstract: Stable, substantially acid-free, one package, moisture curable RTV compositions are provided having a scavenger for chemically combined hydroxy groups of the formula ##STR1## where x equals 1 or 2 and y equals 0 to 3 inclusive. A method for providing the aforesaid moisture curable RTV compositions is also provided. Novel compounds of the formula ##STR2## where x equals 1 or 2 and y equals 0 to 2 inclusive are provided as are methods for making such novel compounds.
    Type: Grant
    Filed: August 10, 1984
    Date of Patent: March 25, 1986
    Assignee: General Electric Company
    Inventors: Sandra L. Pratt, Gary M. Lucas, Michio Zembayashi
  • Non-corrosive silicone RTV compositions
    Patent number: 4499234
    Abstract: Stable, substantially acid-free, one package, moisture curable RTV compositions are provided having a scavenger for chemically combined hydroxy groups of the formula ##STR1## where x equals 1 or 2 and y equals 0 to 3 inclusive. A method for providing the aforesaid moisture curable RTV compositions is also provided. Novel compounds of the formula ##STR2## where x equals 1 or 2 and y equals 0 to 2 inclusive are provided as are methods for making such novel compounds.
    Type: Grant
    Filed: October 14, 1983
    Date of Patent: February 12, 1985
    Assignee: General Electric Company
    Inventors: Sandra L. Pratt, Gary M. Lucas, Michio Zembayashi