Patents by Inventor Mark H. Giammattei

Mark H. Giammattei 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).

  • Methods of preparing a polymeric material
    Patent number: 7256225
    Abstract: A method is disclosed to prepare a polymeric material by filtering solutions of poly(arylene ether) and/or poly(alkenyl aromatic) through one or more filtration systems to provide a material having reduced levels of particulate impurities. The polymeric material prepared is suitable for use in data storage media applications.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: August 14, 2007
    Assignee: General Electric Company
    Inventors: Paul W. Buckley, Jiawen Dong, Mark H. Giammattei, Hua Guo, Norberto Silvi
  • Method of separating a polymer from a solvent
    Patent number: 7226989
    Abstract: A method of separating a polymer-solvent mixture is described wherein a polymer-solvent mixture is heated prior to its introduction into an extruder comprising an upstream vent and/or a side feeder vent to allow flash evaporation of the solvent, and downstream vents for removal of remaining solvent. The one-step method is highly efficient having very high throughput rates while at the same time providing a polymer product containing low levels of residual solvent.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: June 5, 2007
    Assignee: General Electric Company
    Inventors: Norberto Silvi, Mark H. Giammattei, Paul W. Buckley
  • Method of separating a polymer from a solvent
    Patent number: 7122619
    Abstract: A method of separating a polymer-solvent mixture is described wherein a polymer-solvent mixture is heated prior to its introduction into an extruder comprising an upstream vent and/or a side feeder vent to allow flash evaporation of the solvent, and downstream vents for removal of remaining solvent. The one-step method is highly efficient having very high throughput rates while at the same time providing a polymer product containing low levels of residual solvent.
    Type: Grant
    Filed: June 3, 2005
    Date of Patent: October 17, 2006
    Assignee: General Electric Company
    Inventors: Norberto Silvi, Mark H. Giammattei, Jan P. Keulen, David W. Woodruff, Paul R. Wilson, Paul W. Buckley, Norman Enoch Johnson
  • Methods of preparing a polymeric material composite
    Patent number: 7041780
    Abstract: Methods to prepare a poly(arylene ether) and poly(alkenyl aromatic) polymeric material having reduced levels of particulate impurities are described. The polymeric material prepared is suitable for use in data storage media applications.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: May 9, 2006
    Assignee: General Electric
    Inventors: Paul W. Buckley, Jiawen Dong, Mark H. Giammattei, Hua Guo, Robert John Hossan, Christian Lietzau, Norberto Silvi
  • Method of separating a polymer from a solvent
    Patent number: 6949622
    Abstract: A method of separating a polymer-solvent mixture is described wherein a polymer-solvent mixture is heated prior to its introduction into an extruder comprising an upstream vent and/or a side feeder vent to allow flash evaporation of the solvent, and downstream vents for removal of remaining solvent. The one-step method is highly efficient having very high throughput rates while at the same time providing a polymer product containing low levels of residual solvent.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: September 27, 2005
    Assignee: General Electric Company
    Inventors: Norberto Silvi, Mark H. Giammattei, Jan P. Keulen, David W. Woodruff, Paul R. Wilson, Paul W. Buckley, Norman Enoch Johnson
  • Method of separating a polymer from a solvent
    Patent number: 6924350
    Abstract: A method of separating a polymer-solvent mixture is described wherein a polymer-solvent mixture is heated prior to its introduction into an extruder comprising as upstream vent and/or a side feeder vent to allow flash evaporation of the solvent, and downstream vents for removal of remaining solvent. The one-step method is highly efficient having very high throughput rates while at the same time providing a polymer product containing low levels of residual solvent.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: August 2, 2005
    Assignee: General Electric Company
    Inventors: Jiawen Dong, Mark H. Giammattei, Norberto Silvi
  • Compatibilized blends of polyetherimides and liquid crystalline polyesters
    Patent number: 5633319
    Abstract: Non-delaminating resinous compositions are prepared by blending at least one polyetherimide, at least one liquid crystalline polyester in an amount to provide lower melt viscosity, and a compatibilizing amount of at least one polyepoxy compound. The compositions may also contain a minor proportion of at least one non-liquid crystalline polyester such as poly(ethylene terephthalate) or poly(ethylene 2,6-naphthalenedicarboxylate).
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: May 27, 1997
    Assignees: General Electric Company, E. I. Du pont de Nemours & Company
    Inventors: Norberto Silvi, Sterling B. Brown, Mark H. Giammattei, King L. Howe