Patents by Inventor Rudolf Taube

Rudolf Taube 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).

  • Copolymerization of conjugated dienes with non-conjugated olefins by means of rare earth catalysts
    Patent number: 6706830
    Abstract: The present invention relates to a process for the copolymerization of conjugated diolefins with non-conjugated olefins in the presence of rare earth metal catalysts. The advantages of the process according to the invention are in particular the high selectivity, good space-time yield and the possibility of being able to vary the reaction conditions within a wide range.
    Type: Grant
    Filed: April 21, 2003
    Date of Patent: March 16, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Heike Windisch, Gerd Sylvester, Rudolf Taube, Steffen Maiwald, Jürgen Giesemann, Thomas Rosenstock
  • Copolymerisation of conjugated dienes with non-conjugated olefins by means of rare earth catalysts
    Publication number: 20030162920
    Abstract: The present invention relates to a process for the copolymerisation of conjugated diolefins with non-conjugated olefins in the presence of rare earth metal catalysts. The advantages of the process according to the invention are in particular the high selectivity, good space-time yield and the possibility of being able to vary the reaction conditions within a wide range.
    Type: Application
    Filed: April 21, 2003
    Publication date: August 28, 2003
    Inventors: Heike Windisch, Gerd Sylvester, Rudolf Taube, Steffen Maiwald, Jurgen Giesemann, Thomas Rosenstock
  • Compounds of the rare earths and their use as polymerization catalysts for unsaturated compounds
    Patent number: 6284697
    Abstract: The present invention relates to a new catalyst based on allyl complexes of the rare earths, of general formula [(C3R15)rM1(X)2−r(D)n]+[M2(X)p(C6H5−qR2q)4−p]−  (I), to the preparation of this new catalyst, and to its use for the polymerization of unsaturated compounds, particularly of conjugated dienes, in solution and in the gas phase.
    Type: Grant
    Filed: May 7, 1998
    Date of Patent: September 4, 2001
    Assignee: Bayer AG
    Inventors: Heike Windisch, Gerd Sylvester, Rudolf Taube, Steffen Maiwald
  • Gas-phase polymerisation of conjugated dienes in the presence of rare earth allyl compounds
    Patent number: 5958820
    Abstract: A process for polymerizing a gaseous conjugated diene by bringing it in contact with a catalyst consisting of a rare earth allyl compound, an organic aluminum compound, an inorganic support and optionally, the same or a different conjugated diene. The resulting polymers possess elevated proportions of cis-1,4 units.
    Type: Grant
    Filed: October 2, 1997
    Date of Patent: September 28, 1999
    Assignee: Bayer AG
    Inventors: Rudolf Taube, Steffen Maiwald, Thomas Ruhmer, Heike Windisch, Jurgen Giesemann, Gerd Sylvester