Patents by Inventor Robert Augustine Ottaviani

Robert Augustine Ottaviani 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 for making nanocomposite materials
    Patent number: 7462666
    Abstract: A method for making a nanocomposite material includes introducing a solution including a nanofiller material and a supercritical fluid into a molten polymeric material within an extruder. The supercritical fluid is caused to substantially instantaneously convert to a gas phase, thereby forming the nanocomposite material having the nanofiller material substantially homogeneously dispersed therein.
    Type: Grant
    Filed: May 11, 2004
    Date of Patent: December 9, 2008
    Assignee: General Motors Corporation
    Inventors: Robert Augustine Ottaviani, William R. Rodgers, Paula D. Fasulo, David A. Okonski
  • Method for minimizing filler agglomeration
    Patent number: 7354967
    Abstract: A method for minimizing nanofiller agglomeration within a polymeric material includes the step of introducing the nanofiller at predetermined parameters into an extruder having the polymeric material therein. The nanofiller introduction is downstream of the area of the extruder wherein the polymeric material had been substantially melted and mixed. After the nanofiller introduction, the melted polymeric material has the nanofiller dispersed therewithin substantially without agglomerated nanofiller. Then the melted polymeric material having nanofiller dispersed therewithin exits the extruder before nanofiller agglomeration occurs.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: April 8, 2008
    Assignees: General Motors Corporation, Southern Clay Products, Inc.
    Inventors: Paula Diane Fasulo, William R. Rodgers, Robert Augustine Ottaviani, Douglas L. Hunter