Patents by Inventor Jens Panitzky

Jens Panitzky 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).

  • ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENE POWDER HAVING IMPROVED SWELLING PERFORMANCE
    Publication number: 20230085145
    Abstract: The present invention relates to an ultra-high molecular weight polyethylene (UHMWPE) powder having a BET specific surface area of ?0.50 m2/g as determined in accordance with ISO 9277 (2010). Such UHMWPE powder allows for preparation of a gel solution comprising the powder to a desired swelling ratio at moderate temperatures within a reduced swelling period.
    Type: Application
    Filed: May 10, 2021
    Publication date: March 16, 2023
    Inventors: Thomas LANGSTRAAT, Priya GARG, Shaneesh VADAKE KULANGARA, Jens PANITZKY
  • Process for manufacturing high to ultra high molecular weight polymers using novel bridged metallocene catalysts
    Patent number: 8034886
    Abstract: The present invention relates to a process of manufacturing high, very high, and ultra high molecular weight polymers comprising predominantly ethylene monomers. Ethylene is reacted in the presence of a catalyst system to produce a polymer having a viscosimetrically-determined molecular weight of at least 0.7×106 g/mol. The catalyst system generally includes a bridged metallocene catalyst compound, optionally with a co-catalyst. The catalyst is characterized by a zirconium dichloride central functionality and a dimethyl silandiyl bridge between five-membered rings of indenyl groups. Both rings of the metallocene compound are substituted at the 2-position with respect to the dimethyl silandiyl bridge with a C1-C20 carbonaceous group.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: October 11, 2011
    Assignee: Ticona GmbH
    Inventors: Tim Dickner, Jens Ehlers, Jörg Schottek, Jens Panitzky
  • Process for manufacturing high to ultra high molecular weight polymers using novel bridged metallocene catalysts
    Publication number: 20100056737
    Abstract: The present invention relates to a process of manufacturing high, very high, and ultra high molecular weight polymers comprising predominantly ethylene monomers. Ethylene is reacted in the presence of a catalyst system to produce a polymer having a viscosimetrically-determined molecular weight of at least 0.7×106 g/mol. The catalyst system generally includes a bridged metallocene catalyst compound, optionally with a co-catalyst. The catalyst is characterized by a zirconium dichloride central functionality and a dimethyl silandiyl bridge between five-membered rings of indenyl groups. Both rings of the metallocene compound are substituted at the 2-position with respect to the dimethyl silandiyl bridge with a C1-C20 carbonaceous group.
    Type: Application
    Filed: August 31, 2009
    Publication date: March 4, 2010
    Inventors: Tim Dickner, Jens Ehlers, Jörg Schottek, Jens Panitzky
  • Process for manufacturing ultra high molecular weight polymers using novel bridged metallocene catalysts
    Patent number: 7598329
    Abstract: The present invention relates to a process for manufacturing ultra high molecular weight polymers by means of polymerization and co-polymerization of olefins using novel bridged metallocene catalysts as well as their catalyst systems.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: October 6, 2009
    Assignee: Ticona GmbH
    Inventors: Jens Panitzky, Jens Ehlers, Tim Dickner, Jorg Schottek
  • Process for manufacturing ultra high molecular weight polymers using novel bridged metallocene catalysts
    Publication number: 20070105712
    Abstract: The present invention relates to a process for manufacturing ultra high molecular weight polymers by means of polymerization and co-polymerization of olefins using novel bridged metallocene catalysts as well as their catalyst systems.
    Type: Application
    Filed: November 3, 2006
    Publication date: May 10, 2007
    Inventors: Jens Panitzky, Jens Ehlers, Tim Dickner, Jorg Schottek