Patents by Inventor Iris Kullmer

Iris Kullmer 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).

  • Covalently fixed nonmetallocenes, process for preparing them and their use for the polymerization of olefins
    Patent number: 7157398
    Abstract: The invention relates to a method for producing special transition metal compounds, to novel transition metal compounds and to the use thereof for polymerizing olefins.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: January 2, 2007
    Assignee: Celanese Ventures GmbH
    Inventors: Jörg Schottek, Jörg Schulte, Tim Dickner, Iris Küllmer
  • Covalently fixed nonmetallocenes, process for preparing them and their use for the polymerization of olefins
    Publication number: 20050148461
    Abstract: The invention relates to a method for producing special transition metal compounds, to novel transition metal compounds and to the use thereof for polymerizing olefins.
    Type: Application
    Filed: February 26, 2003
    Publication date: July 7, 2005
    Inventors: Jorg Schottek, Jorg Schulte, Tim Dickner, Iris Kullmer
  • Method for producing mono-organoboranes or di-organoboranes
    Patent number: 6600066
    Abstract: A novel process for preparing perhalogenated monoorganoboranes or diorganoboranes which makes it possible to obtain these compounds under conditions which can readily be implemented in the industry is described.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: July 29, 2003
    Assignee: Basell Polyolefine GmbH
    Inventors: Jörg Schottek, Patricia Becker, Iris Küllmer
  • Process for producing tubular parts of high-T.sub.C superconductor material
    Patent number: 5478801
    Abstract: The invention relates to a process for producing cylindrical or round parts of high-T.sub.c superconductor material comprising bismuth, strontium, calcium, copper and oxygen. In this process, a pre-prepared finely-divided oxide mixture with organic additives is first introduced at room temperature into a casting mold. The shaped mixture is then converted into the superconducting shaped part by subsequent thermal treatment.
    Type: Grant
    Filed: June 21, 1994
    Date of Patent: December 26, 1995
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Christoph Lang, Iris Kullmer, Joachim Bock
  • Dense superconducting bodies with preferred orientation
    Patent number: 5378682
    Abstract: A description is given of a solid oxide-ceramic superconductor containing copper in the crystal lattice which is composed of crystals which are arranged essentially in parallel and intergrown with one another and which also contains, per 100 g of copper in the superconductor, 0.04 to 0.5 mol of CuF.sub.2 or KF, and of a sinter process for producing it. The copper-containing superconductor may be made up, for example, of bismuth, strontium, calcium or of bismuth, strontium, calcium, lead and also copper and oxygen.
    Type: Grant
    Filed: July 15, 1993
    Date of Patent: January 3, 1995
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Martin Schwarz, Iris Kullmer, Joachim Bock
  • Superconducting materials of high density and crystalline structure produced from a mixture of YBa.sub.2 Cu.sub.3 O.sub.7-x and CuO
    Patent number: 5200387
    Abstract: A compact superconductor of the empirical composition YBa.sub.2 Cu.sub.3 O.sub.7-x .times.zCuO, in which z is a number from 0.08 to 0.84, consists of elongated crystals grown together irregularly. It has a density of at least 5.9 g/cm.sup.3, in particular at least 6.02 g/cm.sup.3. It is prepared by mixing a fine-grained superconductor powder of the composition YBa.sub.2 Cu.sub.3 O.sub.7-x with 1 to 10% by weight of CuO, compressing the mixture under a pressure of at least 1 MPa to give a compact, and heating this compact at 940.degree.-985.degree. C. for at least 5 hours.
    Type: Grant
    Filed: July 17, 1990
    Date of Patent: April 6, 1993
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Martin Schwarz, Iris Kullmer