Patents by Inventor Sarah Bridget Granzo

Sarah Bridget Granzo 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).

  • Method of treating precipitated calcium carbonate fillers
    Patent number: 6743509
    Abstract: Treating compositions for application to particles of a filler consist of 5-95 percent by weight of a silicon atom containing hydrophobic-type treating agent, and 5-95 percent by weight of a silicon atom containing functional-type treating agent, based on the weight of the composition. Useful functional-type treating agents include bis(alkoxysilylalkyl)polysulfides and mercaptoorganosilicon compounds. Useful hydrophobic-type treating agents include polyorganohydrogensiloxanes and silanol terminated silicone oligomers. The filler most preferred is precipitated (i.e., synthetic) calcium carbonate.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: June 1, 2004
    Assignee: Dow Corning Corporation
    Inventors: Debora Frances Bergstrom, Gary Thomas Burns, Sarah Bridget Granzo, Csilla Kollar, Clifford Carlton Reese
  • Method of treating precipitated calcium carbonate fillers
    Publication number: 20040063816
    Abstract: Treating compositions for application to particles of a filler consist of 5-95 percent by weight of a silicon atom containing hydrophobic-type treating agent, and 5-95 percent by weight of a silicon atom containing functional-type treating agent, based on the weight of the composition. Useful functional-type treating agents include bis(alkoxysilylalkyl)polysulfides and mercaptoorganosilicon compounds. Useful hydrophobic-type treating agents include polyorganohydrogensiloxanes and silanol terminated silicone oligomers. The filler most preferred is precipitated (i.e., synthetic) calcium carbonate.
    Type: Application
    Filed: October 1, 2002
    Publication date: April 1, 2004
    Inventors: Debora Frances Bergstrom, Gary Thomas Burns, Sarah Bridget Granzo, Csilla Kollar, Clifford Carlton Reese