Patents by Inventor Roger Goris

Roger Goris 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).

  • HDPE polymer compostion
    Patent number: 6809154
    Abstract: HDPE compositions comprising a bimodal polymer and a nucleating agent, for producing moulded articles with increased E-modulus and high ESCR, and the use of such compositions in the production of moulded articles.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: October 26, 2004
    Assignee: Borealis Technology Oy
    Inventors: Ann Kristen Lindahl, Harry Oysaed, Roger Goris
  • Ethylene polymerization
    Patent number: 6632896
    Abstract: Ths invention provides a process for the preparation of a polyethylene, in particular an HDPE suitable for blow moulding of HIC, which comprises polymerizing ethylene and, optionally an ethylenically unsaturated comonomer copolymerizable therewith, in the presence of a catalyst comprising a first silica-supported chromium catalyst having a pore volume of at least 2 mL/g, a surface area of at least 350 m2/g and a chromium content of 0.1 to 1.0% by weight and a second silica-supported chromium catalyst having a pore volume of at least 2 mL/g, a surface area of at least 450 m2/g and a chromium content of 0.1 to 1.0% by weight, wherein the silica support of said first catalyst also comprises alumina and the silica support of said second catalyst also comprises titanium, and preferably a co-catalyst.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: October 14, 2003
    Assignee: Borealis Technology Oy
    Inventors: Vidar Almquist, Paul Allemeersch, Roger Goris, Ann Kristin Lindahl
  • Hdpe polymer composition
    Publication number: 20030153688
    Abstract: HDPE compositions comprising a bimodal polymer and a nucleating agent, for producing moulded articles with increased E-modulus and high ESCR, and the use of such compositions in the production of moulded articles.
    Type: Application
    Filed: February 6, 2003
    Publication date: August 14, 2003
    Inventors: Ann Kristen Lindahl, Harry Oysaed, Roger Goris