Patents by Inventor Lars Hojer

Lars Hojer 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).

  • Peroxide crosslinked ethylene polymer pressure pipe and a method for the preparation thereof
    Patent number: 8968851
    Abstract: A peroxide crosslinked ethylene polymer pressure pipe and a method for the preparation thereof are described. The pipe is characterized in that it comprises an ethylene polymer with a density of less than 950 kg/m3 obtained by polymerization with a single-site catalyst and having a shear thinning index, SHI5/300 of less than 20 and a MWD of <10. The method is characterized in that it comprises polymerizing ethylene, optionally together with at least one comonomer, with a single-site catalyst to provide the above defined ethylene polymer, forming the ethylene polymer into a pipe by extrusion and crosslinking it.
    Type: Grant
    Filed: March 8, 2005
    Date of Patent: March 3, 2015
    Assignee: Borealis Technology Oy
    Inventors: Philipp Walter, Anneli Pakkanen, Jeroen Oderkerk, Magnus Palmlof, Lars Hojer, Bill Gustafsson, Tore Dreng
  • Peroxide Crosslinked Ethylene Polymer Pressure Pipe and a Method for the Preparation Thereof
    Publication number: 20080226858
    Abstract: A peroxide crosslinked ethylene polymer pressure pipe and a method for the preparation thereof are described. The pipe is characterised in that it comprises an ethylene polymer with a density of less than 950 kg/m3 obtained by polymerisation with a single-site catalyst and having a shear thinning index, SHI5/300 of less than 20 and a MWD of <10. The method is characterised in that it comprises polymerising ethylene, optionally together with at least one comonomer, with a single-site catalyst to provide the above defined ethylene polymer, forming the ethylene polymer into a pipe by extrusion and crosslinking it.
    Type: Application
    Filed: March 8, 2005
    Publication date: September 18, 2008
    Applicant: Borealis Technology Oy
    Inventors: Philipp Walter, Anneli Pakkanen, Jeroen Oderkerk, Magnus Palmlof, Lars Hojer, Bill Gustafsson, Tore Dreng