Patents by Inventor Eric Barthel

Eric Barthel 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 the treatment of a catalytic component on a porous metal oxide support for the polymerization of olefins in the gas phase and method of polymerizing olefins
    Patent number: 5399638
    Abstract: The method of forming a catalytic component for use in the polymerization of ethylene or a copolymer of ethylene and a C.sub.3 to C.sub.12 alpha olefin in a gas-phase comprising impregnating a porous metal oxide support with at least one titanium compound, magnesium compound, and chlorine compound, and prepolymerizing ethylene or a copolymer of ethylene and a C.sub.3 to C.sub.12 alpha olefin, a least partially in suspension, in the presence of said porous metal oxide support and at least one alkylaluminum compound until a degree of prepolymerization is reached which is suitable for the subsequent gas-phase of fluidized bed polymerization, and the method of polymerizing olefins utilizing the catalysts formed by the prepolymerization.
    Type: Grant
    Filed: January 10, 1992
    Date of Patent: March 21, 1995
    Assignee: Atochem
    Inventors: Claude Brun, Auguste Cheux, Eric Barthel
  • Method for the treatment of a catalytic component on a porous metal oxide support for the polymerization of olefins in the gas phase and method of polymerizing olefins
    Patent number: 5112785
    Abstract: The method of forming a catalytic component for use in the polymerization of ethylene or a copolymer of ethylene and a C.sub.3 to C.sub.12 alpha olefin in a gas-phase comprising impregnating a porous metal oxide support with at least one titanium compound, magnesium compound, and chlorine compound, and prepolymerizing ethylene or a copolymer of ethylene and a C.sub.3 to C.sub.12 alpha olefin, a least partially in suspension, in the presence of said porous metal oxide support and at least one alkylaluminum compound until a degree of prepolymerization is reached which is suitable for the subsequent gas-phase of fluidized bed polymerization, and the method of polymerizing olefins utilizing the catalysts formed by the prepolymerization.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: May 12, 1992
    Assignee: Atochem
    Inventors: Claude Brun, Auguste Cheux, Eric Barthel