Patents by Inventor Hansjorg Pramer

Hansjorg Pramer 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).

  • Talc containing polypropylene composition with excellent thermomechanical properties
    Patent number: 9139724
    Abstract: The invention pertains to a polypropylene composition consisting of: 55 to 79 wt % base polymer mix; 18 to 44.5 wt % talc; and 0.5 to 3 wt % additives based on the total weight of the polypropylene composition, the base polymer mix containing a XCU fraction and a XCS fraction and the XCU fraction being present in an amount of 91 to 98 wt % and the XCS fraction being present in an amount of 2 to 9 wt %; the base polymer mix containing a comonomer content of less than 5 wt % with respect to the base polymer mix; the talc having a d50 median particle size of 1.0 to 3.0 ?m when measured according to ISO 13317-3 15 using a Sedigraph; and the composition having a MFR (230° C./2.16 kg; ISO 1133) of 1 to 10 g/10 min. a process for the production of such a polypropylene composition and article comprising said polypropylene composition.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: September 22, 2015
    Assignee: Borealis AG
    Inventors: Rao Balakantha Kona, Stefan Schiesser, Andreas Hauer, Hansjorg Pramer
  • TALC CONTAINING POLYPROPYLENE COMPOSITION WITH EXCELLENT THERMOMECHANICAL PROPERTIES
    Publication number: 20140371371
    Abstract: The invention pertains to a polypropylene composition consisting of: 55 to 79 wt % base polymer mix; 18 to 44.5 wt % talc; and 0.5 to 3 wt % additives based on the total weight of the polypropylene composition, the base polymer mix containing a XCU fraction and a XCS fraction and the XCU fraction being present in an amount of 91 to 98 wt % and the XCS fraction being present in an amount of 2 to 9 wt %; the base polymer mix containing a comonomer content of less than 5 wt % with respect to the base polymer mix; the talc having a d50 median particle size of 1.0 to 3.0 ?m when measured according to ISO 13317-3 15 using a Sedigraph; and the composition having a MFR (230° C./2.16 kg; ISO 1133) of 1 to 10 g/10 min a process for the production of such a polypropylene composition and article comprising said polypropylene composition.
    Type: Application
    Filed: January 16, 2013
    Publication date: December 18, 2014
    Applicant: BOREALIS AG
    Inventors: Rao Balakantha Kona, Stefan Schiesser, Andreas Hauer, Hansjorg Pramer