Patents by Inventor Virgil Rouyer

Virgil Rouyer 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).

  • Process for producing polyethylene pipe resins
    Publication number: 20060009584
    Abstract: A polyethylene resin comprising from 35 to 49 wt. % of a first polyethylene fraction of high molecular weight and from 51 to 65 wt. % of a second polyethylene fraction of low molecular weight, the first polyethylene having a density of up to 0.930 g/cm3, and an HLMI of less than 0.6 g/10 min and the second polyethylene fraction comprising a high density polyethylene having a density of at least 0.969 g/cm3 and an MI2 of greater than 10 g/10 min, and the polyethylene resin, having a density of greater than 0.946 g/cm3, an HLMI of from 1 to 100 g/10 min, a dynamical viscosity, measured at 0.01 radians/second, greater than 200,000 Pa.s and a ratio of the dynamical viscosities measured at, respectively 0.01 and 1 radians/second greater than 8.
    Type: Application
    Filed: September 7, 2005
    Publication date: January 12, 2006
    Inventors: Olivier Miserque, Jacques Michel, Marc Dupire, Fabian Sibendt, Jean-Louis Costa, Serge Bettonville, Virgil Rouyer, Eric Damme
  • Polyethylene pipe resins and production thereof
    Patent number: 6946521
    Abstract: A polyethylene resin comprising from 35 to 49 wt. % of a first polyethylene fraction of high molecular weight and from 51 to 65 wt. % of a second polyethylene fraction of low molecular weight, the first polyethylene having a density of up to 0.930 g/cm3, and an HLMI of less than 0.6 g/10 min and the second polyethylene fraction comprising a high density polyethylene having a density of at least 0.969 g/cm3 and an MI2 of greater than 10 g/10 min, and the polyethylene resin, having a density of great 0.946 g/cm3, an HLMI of from 1 to 100 g/10 min, a dynamical viscosity, measured at 0.01 radians/second, greater than 200,000 Pa.s and a ratio of the dynamical viscosities measured at, respectively 0.01 and 1 radians/second greater than 8.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: September 20, 2005
    Assignees: ATOFINA Research S.A., Solvay Polyolefins Europe-Belgium S.A.
    Inventors: Olivier Miserque, Jacques Michel, Marc Dupire, Fabian Siberdt, Jean-Louis Costa, Serge Bettonville, Virgil Rouyer, Eric Damme
  • Polyethylene pipe resins and production thereof
    Publication number: 20040157988
    Abstract: A polyethylene resin comprising from 35 to 49 wt. % of a first polyethylene fraction of high molecular weight and from 51 to 65 wt. % of a second polyethylene fraction of low molecular weight, the first polyethylene having a density of up to 0.930 g/cm3, and an HLMI of less than 0.6 g/10 min and the second polyethylene fraction comprising a high density polyethylene having a density of at least 0.969 g/cm3 and an MI2 of greater than 10 g/10 min, and the polyethylene resin, having a density of greater than 0.946 g/cm3, an HLMI of from 1 to 100 g/10 min, a dynamical viscosity, measured at 0.01 radians/second, greater than 200,000 Pa.s and a ratio of the dynamical viscosities measured at, respectively 0.01 and 1 radians/second greater than 8.
    Type: Application
    Filed: March 29, 2004
    Publication date: August 12, 2004
    Inventors: Olivier Miserque, Jacques Michel, Marc Dupire, Fabian Siberdt, Jean-Louis Costa, Serge Bettonville, Virgil Rouyer, Eric Damme