Patents by Inventor Bjorn Rinker

Bjorn Rinker 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).

  • Process for producing high molecular weight polyethylene
    Patent number: 9212234
    Abstract: In a process for producing high molecular weight polyethylene, ethylene is contacted with a slurry of a catalyst composition comprising a Group 4 metal complex of a phenolate ether ligand under polymerization conditions comprising a temperature of about 20° C. to less than 90° C. and a pressure of about 4 bar to about 40 bar.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: December 15, 2015
    Assignee: TICONA GMBH
    Inventors: Dominique Robert, Julia Hufen, Kerstin Lüdtke, Bjorn Rinker, Jens Ehlers
  • POLYETHYLENE POWDERS AND POROUS ARTICLES MADE THEREFROM
    Publication number: 20140004339
    Abstract: A polyethylene powder is described having a molecular weight in the range of from 3,000,000 g/mol to less than 4,000,000 g/mol as determined by ASTM 4020 and a bulk density of 0.10 to 0.20 g/cm3. On sintering, the polyethylene powder produces a porous article having an elastic modulus of at least 90 MPa.
    Type: Application
    Filed: April 6, 2012
    Publication date: January 2, 2014
    Inventors: Jens Ehlers, Kerstin Lüdtke, Julia Hufen, Ramesh Srinivasan, Björn Rinker
  • PROCESS FOR PRODUCING HIGH MOLECULAR WEIGHT POLYETHYLENE
    Publication number: 20130072649
    Abstract: In a process for producing high molecular weight polyethylene, ethylene is contacted with a slurry of a catalyst composition comprising a Group 4 metal complex of a phenolate ether ligand under polymerization conditions comprising a temperature of about 20° C. to less than 90° C. and a pressure of about 4 bar to about 40 bar.
    Type: Application
    Filed: July 1, 2011
    Publication date: March 21, 2013
    Applicant: TICONA GMBH
    Inventors: Dominique Robert, Julia Hufen, Kerstin Lüdtke, Bjorn Rinker, Jens Ehlers
  • POLYETHYLENE POWDERS AND POROUS ARTICLES PRODUCED THEREFROM
    Publication number: 20130046040
    Abstract: A polyethylene powder has a molecular weight in the range of about 300,000 g/mol to about 2,000,000 g/mol as determined by ASTM-D 4020, an average particle size, D50, between about 300 and about 1500 ?m, and a bulk density between about 0.25 and about 0.5 g/ml. On sintering, the polyethylene powder produces a porous article having a porosity of at least 45% and a pressure drop less than 5 mbar. The porous article is useful in, for example, wastewater aeration and capillary and filtration applications.
    Type: Application
    Filed: May 3, 2011
    Publication date: February 21, 2013
    Applicant: TICONA LLC
    Inventors: Ramesh Srinivasan, Julia Hufen, Bernhard Forschler, Bjorn Rinker, Jens Ehlers, Louie Wang, Rajesh Bhor, Peter Burke, Meinhard Gusik, Yu Shen