Patents Represented by Attorney Tenlev R. Krueger

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  • Polyethylene blends with good contact transparency
    Patent number: 7514504
    Abstract: This invention discloses the production and use of a polyethylene composition comprising a metallocene-produced linear low density polyethylene and a multi modal high density polyethylene prepared from either a Ziegler-Natta or a metallocene catalyst system. The resulting polyethylene composition is suitable for preparing articles having improved environmental stress crack resistance, rigidity, contact transparency, gloss as well as good processing capabilities.
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: April 7, 2009
    Assignee: Fina Technology, Inc.
    Inventors: Alain Van Sinoy, Christian Koulic
  • High ESCR glossy plastic containers
    Patent number: 7514130
    Abstract: Plastic containers including two or more layers wherein the external or the internal layer formed of of a metallocene-produced medium density polyethylene resin, said plastic container respectively an external or internal gloss of at least 40 and an environmental stress crack resistance, as measured by the time to rupture of at least 30 days.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: April 7, 2009
    Assignee: Fina Technology, Inc.
    Inventor: Eric Maziers
  • Polymer processability evaluation through on-line image processing
    Patent number: 7514032
    Abstract: This invention discloses the use of one or three cameras equipped with a charge coupled device (CCD) sensor and of laser detectors for characterizing respectively in two or three dimensions, the behavior of an extrudate at the exit of a die, said CCD camera(s) being synchronized with a flash by the laser detectors.
    Type: Grant
    Filed: July 1, 2003
    Date of Patent: April 7, 2009
    Assignee: Fina Technology, Inc.
    Inventors: Eric Maziers, Pierre Pestiaux