Patents by Inventor Marc Bruggemann

Marc Bruggemann 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).

  • Semiconductive polymer compositions
    Patent number: 7767741
    Abstract: The present invention relates to a semiconductive polymer composition comprising an olefin homo- or copolymer wherein the composition has a direct current volume resistivity of less than 1000 Ohm·cm at 90° C., an elongation at break which after aging for 240 hours at 135° C. does not change by more than 25%, and a total number of structures of 20 or less in the SIED test. Furthermore, the present invention relates to an electric power cable comprising a conductor, a semiconducting layer and, adjacent to the semiconducting layer, an insulation layer, wherein the semiconducting layer is formed by said semiconductive polymer composition and to the use of said semiconducting polymer composition for the production of a semiconductive layer of an electric power cable.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: August 3, 2010
    Assignee: Borealis Technology Oy
    Inventors: Perry Nylander, Alfred Campus, Annika Smedberg, Karl-Michael Jäger, Ulf Nillson, Hans Eklind, Claes Broman, Wilfried Kalkner, Marc Brüggemann
  • Semiconductive Polymer Compositions
    Publication number: 20080157028
    Abstract: The present invention relates to a semiconductive polymer composition comprising a olefin homo- or copolymer wherein the composition has a direct current volume resistivity of less than 1000 Ohm.cm at 90 ° C., an elongation at break which after aging for 240 hours at 135 ° C. does not change by more than 25%, and a total number of structures of 20 or less in the SIED test. Furthermore, the present invention relates to an electric power cable comprising a conductor, a semicoducting layer and, adjacent to the semiconducting layer, an insulation layer, wherein the semiconducting layer is formed by said semiconductive polymer composition and to the use of said semiconducting polymer composition for the production of a semiconductive layer of an electric power cable.
    Type: Application
    Filed: June 21, 2005
    Publication date: July 3, 2008
    Applicant: BOREALIS TECHNOLOGY OY
    Inventors: Perry Nylander, Alfred Campus, Annika Smedberg, Karl-Michael Jager, Ulf Nillson, Hans Eklind, Claes Broman, Wilfried Kalkner, Marc Bruggemann