Patents by Inventor Gerhard Franz Luft

Gerhard Franz Luft 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).

  • Polymer production at supercritical conditions
    Patent number: 7429634
    Abstract: This invention relates to a process to polymerize olefins comprising contacting, in a polymerization system, olefins having three or more carbon atoms with a catalyst compound, activator, optionally comonomer, and optionally diluent or solvent, at a temperature above the cloud point temperature of the polymerization system and a pressure no lower than 10 MPa below the cloud point pressure of the polymerization system, where the polymerization system comprises any comonomer present, any diluent or solvent present, the polymer product, where the olefins having three or more carbon atoms are present at 40 weight % or more.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: September 30, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Patrick Brant, Gerhard Franz Luft, John Richard Shutt, Lawrence Carl Smith, Douglas J. McLain, Terry J. Burkhardt
  • Polymer production at supercritical conditions
    Patent number: 7354979
    Abstract: This invention relates to a process to polymerize olefins comprising contacting, in a polymerization system, olefins having three or more carbon atoms with a catalyst compound, activator, optionally comonomer, and optionally diluent or solvent, at a temperature above the cloud point temperature of the polymerization system and a pressure no lower than 10 MPa below the cloud point pressure of the polymerization system, where the polymerization system comprises any comonomer present, any diluent or solvent present, the polymer product, where the olefins having three or more carbon atoms are present at 40 weight % or more.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: April 8, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Patrick Brant, Gerhard Franz Luft, John Richard Shutt, Lawrence Carl Smith, Douglas J. McLain, Terry J. Burkhardt
  • Polymer production at supercritical conditions
    Publication number: 20040127654
    Abstract: This invention relates to a process to polymerize olefins comprising contacting, in a polymerization system, olefins having three or more carbon atoms with a catalyst compound, activator, optionally comonomer, and optionally diluent or solvent, at a temperature above the cloud point temperature of the polymerization system and a pressure no lower than 10 MPa below the cloud point pressure of the polymerization system, where the polymerization system comprises any comonomer present, any diluent or solvent present, the polymer product, where the olefins having three or more carbon atoms are present at 40 weight % or more.
    Type: Application
    Filed: September 22, 2003
    Publication date: July 1, 2004
    Inventors: Patrick Brant, Gerhard Franz Luft, John Richard Shutt, Lawrence Carl Smith, Douglas J. McLain, Terry J. Burkhardt