Patents by Inventor Tracey M. Leonard

Tracey M. Leonard 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 release coating compositions
    Patent number: 5138012
    Abstract: Organopolysiloxane for use in release coating compositions are modified to control release values by substitution with phenolic compounds.
    Type: Grant
    Filed: May 18, 1990
    Date of Patent: August 11, 1992
    Assignee: General Electric Company
    Inventors: Karen D. Riding, Judith Stein, Richard P. Eckberg, James L. Desorcie, Tracey M. Leonard
  • Curable silicone caulk compositions
    Patent number: 5034455
    Abstract: Curable silicone caulk compositions are provided using a nonionically stabilized silanol-terminated polydiorganosiloxane, water, a silane cross-linker, a tin condensation catalyst, and calcium carbonate.
    Type: Grant
    Filed: October 3, 1989
    Date of Patent: July 23, 1991
    Assignee: General Electric Company
    Inventors: Judith Stein, Tracey M. Leonard
  • Substantially odor free, UV curable organopolysiloxane release coating compositions and coating method
    Patent number: 4994299
    Abstract: UV curable epoxysilicone compositions are provided which can be used to impart improved release characteristics to plastic or paper substrates in an odor-free manner. Polyaryloniumhexafluorometalloid salts are used as photoinitiators. The UV curable compositions have condensed epoxyorganosiloxy units and haloarylalkylsiloxy units and have been found to be effective as control release agents when blended with epoxysiloxanes.
    Type: Grant
    Filed: June 22, 1989
    Date of Patent: February 19, 1991
    Assignee: General Electric Company
    Inventors: Judith Stein, Tracey M. Leonard
  • Method for coating substrates with UV curable epoxysilicone compositions
    Patent number: 4954364
    Abstract: A method is provided for enhancing the controlled release characteristics of paper or plastic substrates by applying onto the substrate, a UV curable mixture of an epoxysilicone, an arylonium salt catalyst, such as a diaryliodoniumhexafluoroantimonate and a controlled release additive such as a phenolpropyl-substituted methyldisiloxane or an alkylphenol, such as dodecylphenol. The treated plastic or paper substrate is then subjected to UV irradiation to effect a tack-free cure of the UV curable mixture on the substrate.
    Type: Grant
    Filed: June 22, 1989
    Date of Patent: September 4, 1990
    Assignee: General Electric Company
    Inventors: Judith Stein, Tracey M. Leonard, James L. Desorcie
  • Silicone release coating compositions
    Patent number: 4952657
    Abstract: Organopolysiloxane for use in release coating compositions arre modified to control release values by substitution with phenolic compounds.
    Type: Grant
    Filed: July 29, 1988
    Date of Patent: August 28, 1990
    Assignee: General Electric Company
    Inventors: Karen D. Riding, Judith Stein, Richard P. Eckberg, James L. Desorcie, Tracey M. Leonard
  • Shelf stable silicone caulking materials
    Patent number: 4888382
    Abstract: Curable silicon caulking compositions are provided having improved shelf stability as a result of the use of a neopentyl orthosilicate.
    Type: Grant
    Filed: May 31, 1988
    Date of Patent: December 19, 1989
    Assignee: General Electric Company
    Inventors: Judith Stein, Tracey M. Leonard
  • Self-bonding silicone caulking compositions
    Patent number: 4877828
    Abstract: Certain bissilyl ureas have been found useful as adhesion promoters for silicone latex compositions. Self-bonding silicone elastomers are provided which exhibit enhanced adhesion to a variety of substrates.
    Type: Grant
    Filed: May 31, 1988
    Date of Patent: October 31, 1989
    Assignee: General Electric Company
    Inventors: Judith Stein, Tracey M. Leonard
  • 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