Patents by Inventor Eike Poetsch

Eike Poetsch 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).

  • Polymerizable, luminescent compounds and mixtures, luminescent polymer materials and their use
    Publication number: 20050244718
    Abstract: The invention relates to new polymerizable, luminescent compounds of formula I wherein R1, R2, A1, A2, A3, Z1, W and Q have the meanings given in claim 1. Furthermore the invention relates to polymerizable mixtures containing compounds according to the invention and pleferably at least one polymerizable mesogenic compound. Polymer materials obtainable by polymerizing such mixtures are also described. These compounds, mixtures and materials show advantageous photoluminescent and/or electroluminescent properties and may be used in light emitting devices and optical- or electrooptical display elements.
    Type: Application
    Filed: June 18, 2003
    Publication date: November 3, 2005
    Inventors: Eike Poetsch, Thomas Jacob, Jose Serrano, Milagros Pinol, Raquel Gimenez, Joachim Stumpe, Thomas Fischer, Regina Rosenhauer
  • Phenylcyclohexanes and a liquid-crystalline medium
    Patent number: 6955837
    Abstract: Novel phenylcyclohexanes of the formula I in which n is 0 to 7, Q1 and Q2 are H, or one of these radicals is alternatively CH3, r is 0, 1, 2, 3, 4 or 5, A is trans-1,4-cyclohexylene, 1,4-phenylene, 3-fluoro-1,4-phenylene or a single bond, X is F, Cl, —CF3, —CN, —OCF3 or —OCHF2, and Y and Z are each, independently of one another, H or F, with the proviso that, in the case where A is a single bond, Q1=Q2=H and simultaneously X=CN, Y and/or Z are F.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: October 18, 2005
    Assignee: Merck Patent GmbH
    Inventors: Andreas Wachtler, Reinhard Hittich, Eike Poetsch, Herbert Plach, David Coates, Bernhard Rieger, Joachim Krause
  • Liquid-crystalline phenol esters
    Publication number: 20050205843
    Abstract: The invention relates to liquid-crystalline phenol esters of the formula I in which R, A1, Z1, m, L and Y are as defined in Claim 1, to liquid-crystalline media comprising at least one phenol ester of the formula I, and to electro-optical displays containing such a liquid-crystalline medium.
    Type: Application
    Filed: May 13, 2005
    Publication date: September 22, 2005
    Inventors: Volker Reiffenrath, Michael Heckmeier, Eike Poetsch, Joachim Krause, Werner Binder, Brigitte Schuler, Achim Gotz
  • Liquid-crystalline medium
    Publication number: 20050205842
    Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, comprising at least one pyran compound of the formula I and one or more compounds selected from the group consisting of the compounds C1 to C9 in which R, R1, the rings A, B and P, L1, L2, X, X1, Z1, Z2, m and n are as defined in Claim 1, and to electro-optical displays containing a liquid-crystalline medium of this type.
    Type: Application
    Filed: December 17, 2004
    Publication date: September 22, 2005
    Inventors: Michael Heckmeier, Melanie Klasen-Memmer, Georg Luessem, Eike Poetsch, Peer Kirsch, Marcus Reuter, Brigitte Schuler, Izumi Saito
  • Liquid-crystalline medium
    Publication number: 20050179007
    Abstract: The invention relates to a liquid-crystalline medium comprising at least one pyran compound of the formula I and one or more compounds selected from the group consisting of the compounds C-1 to C-5 in which the R, R1, the rings A, B and P, L1-6, X, X1, Z1, Z2, m and n are as defined above and to electro-optical displays containing a liquid-crystalline medium of this type.
    Type: Application
    Filed: December 17, 2004
    Publication date: August 18, 2005
    Inventors: Atsutaka Manabe, Peer Kirsch, Eike Poetsch, Georg Luessem, Michael Heckmeier, Melanie Klasen-Memmer
  • Liquid-crystalline medium
    Patent number: 6929833
    Abstract: Liquid-crystalline mediums based on a mixture of polar compounds having positive dielectric aniostropy, characterized in that they comprise one or more compounds of the general formula I in which R, A1, Z1, Y and L are as defined herein, are suitable for use in MLC, TN and STN dispalys.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: August 16, 2005
    Assignee: Merck Patent GmbH
    Inventors: Kazuaki Tarumi, Brigitte Schuler, Eike Poetsch, Volker Reiffenrath, Yukiomi Tanaka
  • PYRANS AS LIQUID CRYSTALS
    Publication number: 20050142300
    Abstract: Tetrahydropyran derivatives having at least one ester group (—CO—O—) and at least one group —CN, —NCS, —F, —Cl, —OCHF2, —OCF3, —CF3, —OCHFCF3, —OCF2CHFCF3, SF5, or —OCF2CF3; a process for preparing said tetrahydropyran derivatives, and the use of said tetrahydropyran derivatives as a component in a liquid crystal composition.
    Type: Application
    Filed: May 27, 2004
    Publication date: June 30, 2005
    Applicant: Rambus, Inc.
    Inventors: Mark Goulding, Warren Duffy, Kevin Adlem, Peer Kirsch, Alexander Hahn, Eike Poetsch, Werner Binder, Volker Meyer, Melanie Klasen-Memmer, Michael Heckmeier, Georg Lussem
  • Phenylcyclohexanes and a liquid-crystalline medium
    Publication number: 20050133763
    Abstract: Novel phenylcyclohexanes of the formula I in which n is 0 to 7, Q1 and Q2 are H, or one of these radicals is alternatively CH3, r is 0, 1, 2, 3, 4 or 5, A is trans-1,4-cyclohexylene, 1,4-phenylene, 3-fluoro-1,4-phenylene or a single bond, X is F, Cl, —CF3, —CN, —OCF3 or —OCHF2, and Y and Z are each, independently of one another, H or F, with the proviso that, in the case where A is a single bond, Q1=Q2=H and simultaneously X=CN, Y and/or Z are F.
    Type: Application
    Filed: January 21, 2005
    Publication date: June 23, 2005
    Inventors: Andreas Wachtler, Reinhard Hittich, Eike Poetsch, Herbert Plach, David Coates, Bernhard Rieger, Joachim Krause
  • Liquid-crystalline medium
    Patent number: 6902777
    Abstract: A liquid-crystalline mediums which contain one or more compounds of the formula A and at least one compound of the formula B wherein compounds of formula A contain at least one ring selected from and in which Ra, Rb, ring A and ring B, Y, Z1, Z2, a, L1, L2, L3, L4, L5, L6, L7, L8 and L9 are as defined herein, are suitable for use in twisted nematic (TN) and supertwisted nematic (STN) liquid-crystal displays. Such displays have very short response times and good steepnesses and angle dependencies.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: June 7, 2005
    Assignee: Merck Patent GmbH
    Inventors: Harald Hirschmann, Eike Poetsch, Peer Kirsch, Sabine Schoen
  • Heterogenisation of catalytic components
    Publication number: 20050085374
    Abstract: The present invention relates to a process for the refunctionalisation of chemically inert, thermally pre-treated metal oxides having an increased number of co-reactive groups on the oxide surface, without producing by-products which have a deactivating effect on catalytic components. The invention furthermore relates to the use of the refunctionalised metal oxides as catalyst supports for the polymerisation of olefins.
    Type: Application
    Filed: December 4, 2002
    Publication date: April 21, 2005
    Inventors: Katrin Koehler, Eike Poetsch, Herbert Schumann, Birgit Wassermann, Katharina Lange, Ralf Widmaier
  • Pyran derivatives containing an exocyclic double bond
    Publication number: 20050038267
    Abstract: The invention relates to pyran derivatives of formula I and processes and intermediates for their preparation and derivatisation, and the use thereof in liquid-crystalline media.
    Type: Application
    Filed: May 25, 2004
    Publication date: February 17, 2005
    Inventors: Eike Poetsch, Volker Meyer, Werner Binder, Michael Heckmeier, Georg Luessem, Stephan Guertler
  • Pyran compound or at least one derivative thereof
    Publication number: 20050017216
    Abstract: The invention relates to pyran derivatives of the formula I and to a process and intermediates for their preparation and derivatisation, and to the use thereof in liquid-crystalline media.
    Type: Application
    Filed: May 27, 2004
    Publication date: January 27, 2005
    Inventors: Eike Poetsch, Werner Binder, Volker Meyer, Michael Heckmeier, Georg Luessem
  • Pyrans as liquid crystals
    Publication number: 20050012073
    Abstract: A tetrahydropyran derivative comprising at least three cyclic rings and one aromatic endgroup of the formula A a process for preparing said tetrahydropyran derivatives, and the use of said tetrahydropyran derivatives as a component in a liquid crystal composition.
    Type: Application
    Filed: May 27, 2004
    Publication date: January 20, 2005
    Inventors: Mark Goulding, Warren Duffy, Kevin Adlem, Peer Kirsch, Alexander Hahn, Eike Poetsch, Werner Binder, Volker Meyer, Melanie Klasen-Memmer, Michael Heckmeier, Georg Lussem
  • Aldehydes containing a difluorooxymethylene bridge
    Publication number: 20040242905
    Abstract: Aldehydes containing a difluorooxymethylene bridge, of the general formula I
    Type: Application
    Filed: May 27, 2004
    Publication date: December 2, 2004
    Inventors: Eike Poetsch, Werner Binder, Volker Meyer, Stephen Gurtler, Juergen Eckstein, Michael Schwarz
  • Electrooptical liquid crystal display
    Patent number: 6815017
    Abstract: The invention relates to an electrooptical liquid crystal display comprising a reorientation layer for reorientation of the liquid crystals. The field of said reorientation layer has a component parallel to the liquid crystal layer, said component being crucial for the reorientation. Said component comprises a liquid-crystalline medium having a positive dielectric anisotropy and contains at least one mesogenic compound of the formula (I), wherein R1 and L are delined as in claim 1.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: November 9, 2004
    Assignee: Merck Patent GmbH
    Inventors: Michael Heckmeier, Eike Poetsch
  • Liquid-crystalline medium
    Patent number: 6805923
    Abstract: A liquid-crystalline medium based on a mixture of polar compounds having positive dielectric anisotropy, characterized in that it comprises one or more compounds of the general formula I in which R, A, L1, L2 and Y are as defined herein are suitable for use in liquid crystal displays such as MLC, TN or STN displays.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: October 19, 2004
    Assignee: Merck Patentgesellschaft Mit
    Inventors: Michael Heckmeier, Brigitte Schuler, Peer Kirsch, Eike Poetsch
  • Liquid-crystalline medium
    Patent number: 6790489
    Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of negative dielectric anisotropy which comprises at least one compound of the formula I in which R11, R12, A1, Z1, ring A and m are as defined in claim 1, and to the use thereof for an active matrix display based on the ECB or IPS effect.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: September 14, 2004
    Assignee: Merck Patent GmbH
    Inventors: Melanie Klasen-Memmer, Eike Poetsch, Volker Reiffenrath
  • Phenylcyclohexanes and a liquid-crystalline medium
    Publication number: 20040169159
    Abstract: Novel phenylcyclohexanes of the formula I 1
    Type: Application
    Filed: September 28, 2001
    Publication date: September 2, 2004
    Applicant: MERCK KGAA
    Inventors: Andreas Wachtler, Reinhard Hittich, Eike Poetsch, Herbert Plach, David Coates, Bernhard Rieger, Joachim Krause
  • Liquid-crystalline medium
    Publication number: 20040140452
    Abstract: A liquid-crystalline mediums which contain one or more compounds of the formula A 1
    Type: Application
    Filed: December 22, 2003
    Publication date: July 22, 2004
    Inventors: Harald Hirschmann, Eike Poetsch, Peer Kirsch, Sabine Schoen
  • Electro-optical liquid-crystal display
    Patent number: 6749907
    Abstract: An electro-optical liquid-crystal display having a realignment layer for realigning the liquid crystals whose field has a component, which is crucial for the realignment, parallel to the liquid-crystal layer, containing a liquid-crystalline medium of positive dielectric anisotropy, where the medium comprises at least one mesogenic compound and at least one compound of the formula I in which the substituents are as defined herein.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: June 15, 2004
    Assignee: Merck Patent Gesellschaft Mit Beschränkter Haftung
    Inventors: Michael Heckmeier, Marcus Reuter, Matthias Bremer, Eike Poetsch