Patents by Inventor Hans-Jurgen Renner

Hans-Jurgen Renner 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).

  • Hollow polystyrene body obtained by injection stretch blow moulding
    Patent number: 8545953
    Abstract: A blow molding having capacity of at least 250 ml, having a shell which is composed of impact-resistant polystyrene and which is produced via injection stretch blow molding where an average aspect ratio of rubber particles derived from longitudinal section and an average aspect ratio of rubber particles derived from cross section measured in transmission electron micrographs is greater than 4 respectively, and a biaxial orientation of the rubber particles, given by the ratio of the aspect ratio derived from cross section to the aspect ratio derived from longitudinal section is smaller than 3.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: October 1, 2013
    Assignee: Styrolution GmbH
    Inventors: Stefan Burgdörfer, Walter Heckmann, Hans-Jürgen Renner, Christian Schade, Hans-Dieter Schwaben
  • HOLLOW BODY WITH IMPROVED BARRIER ACTION
    Publication number: 20110226723
    Abstract: The present invention relates to hollow bodies with improved barrier action, where the hollow bodies are composed of a three-layer sandwich structure with a shell made of polystyrene and with a middle layer as vapor barrier.
    Type: Application
    Filed: March 15, 2011
    Publication date: September 22, 2011
    Applicant: BASF SE
    Inventors: Christian Schade, Hans-Jürgen Renner, Stefan Burgdörfer, Klaus Wendel
  • HOLLOW POLYSTYRENE BODY OBTAINED BY INJECTION STRETCH BLOW MOULDING
    Publication number: 20100080874
    Abstract: The invention relates to a blow molding having capacity of at least 250 ml, its shell being composed of polystyrene and being produced via injection stretch blow molding. The invention moreover relates to the process for production of this blow molding and to the use of the blow moldings.
    Type: Application
    Filed: December 17, 2007
    Publication date: April 1, 2010
    Applicant: BASF SE
    Inventors: Stefan Burgdörfer, Walter Heckmann, Hans-Jürgen Renner, Christian Schade, Hans-Dieter Schwadben
  • COLD-FORMING OF POLYMERS COMPRISING STYRENE
    Publication number: 20090263585
    Abstract: The invention relates to a process for conversion of polymers selected from the group (A) of the polymers comprising styrene, with the exception of homopolystyrene, or from the group (B) of the polymers comprising maleimide to a condition of ductile deformability, which comprises the action of a force on the polymers below their respective glass transition temperature.
    Type: Application
    Filed: April 30, 2007
    Publication date: October 22, 2009
    Applicant: BASF SE
    Inventors: Christian Schade, Hans-Jurgen Renner
  • Shiny, impact-resistant polystyrol which is resistant to tension cracks
    Patent number: 7094834
    Abstract: A process for increasing the stress-cracking resistance of polystyrene molding compositions, stress-cracking-resistant, glossy polystyrene molding compositions, composite layered sheets or composite layered films with an outer layer of this type, and also processes for producing moldings for refrigeration equipment.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: August 22, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Daniel Wagner, Peter Weinkötz, Herbert Morgenstern, Hans-Jürgen Renner
  • Shiny, impact-resistant polystyrol which is resistant to tension cracks
    Publication number: 20040167279
    Abstract: A process for increasing the stress-cracking resistance of polystyrene molding compositions, stress-cracking-resistant, glossy polystyrene molding compositions, composite layered sheets or composite layered films with an outer layer of this type, and also processes for producing moldings for refrigeration equipment.
    Type: Application
    Filed: January 20, 2004
    Publication date: August 26, 2004
    Inventors: Daniel Wagner, Peter Weinkotz, Herbert Morgenstern, Hans-Jurgen Renner