Merck Patent Gesellschaft MIT Beschrankter Haftung

Merck Patent Gesellschaft MIT Beschraenkter Haftung

Merck Patent Gmbh

Hitachi, Ltd.

Hoechst Aktiengesellschaft

Merck Patent Gesellschaft

Siemens Aktiengesellschaft

Merck Patent Gesellschaft MIT

Merck Kgaa

Tetragon-chemie Ag

Ludwig Pohl

Rudolf Eidenschink

Georg Weber

Bernhard Scheuble

Joachim Krause

Reinhard Hittich

Herbert Schumann

Hans A Kurmeier

Michael Romer

Dietrich Erdmann

Herbert Plach

Bernhard Rieger

Ekkehard Bartmann

Takamasa Oyama

Eike Poetsch

Martin Hostalek

Uwe Hartmann

Holger Jurgensen

Meino Heyen

Karin Weiss

Wilfried Wassermann

Matthias Lokai

Kurt Marquard

Gunther Haas

Fernando Del Pino

Max E Van Ghemen

Hans-Ludwig Hirsch

Andreas Wachtler

Shinji Hasegawa

Joachim Kinkel

Kazuhisa Toriyama

Birgit Sauerbrey

Karl-Heinz Thiele

Werner Theysohn

Richard Unger

Max Van Ghemen

Peter Sartori

Hermann Dallmann

Volker Hilarius

Ernst Wipfelder

Ulrike Reeh

Stefan Schutte

Peter Fuss

Rainer Klink

Thomas Metzner

Michael Frick

Thomas Seuss

Corinna Wassermann

Fike Poetsch

Ulf D&uuml;michen

Christian Marschall

Elmar Hecht

G Unter Waitl

Eva Maria Auth

Ralf Streinstrasser

Bernd Heymer

Ralf Jueschke

Henning Hopf

Zakir Hussain

The invention relates to a matrix liquid crystal display containing integrated non-linear elements and a liquid crystal mixture which has a particularly high resistivity.

Matrix liquid crystal display

Described are matrix liquid crystal displays having two plane parallel support plates which together with a frame form a cell, integrated non-linear elements for switching individual picture elements on the support plates and a nematic liquid crystal mixture which is present in the cell and has a positive dielectric anisotropy and high resistivity. The liquid crystal mixture has a nematic phase range of at least 60&#xb0; C., a maximum viscosity at 20&#xb0; C. of 30 mPa&#xb7;s and a mean dielectricity constant &#x3b5;&#x2266;8. The liquid crystal mixture contains: a) at least 10% by weight of a liquid-crystalline component B having one or more compounds of the following formulae: and b) up to 90% by weight of a liquid-crystalline component A having one or more compounds with a dielectric anisotropy of &#x2212;1.5 to 1.5 of the formula I: 

Aluminum alkyl complexes as cocatalysts

Preparation of cyclic perfluoroalkanebis (sulfonyl) imides

The invention relates to a process for preparing lithium intercalation compounds by thermal solid state reaction of mixtures of lithium hydroxide or lithium oxide and oxides or oxide precursors of transition metals. A significant step of this process is the treatment of an aqueous suspension of the raw material components lithium hydroxide or lithium oxide and metal oxide or metal oxide precursors with hydrogen peroxide, resulting in the lithium compound going into solution. In the drying of the mixture, the lithium hydroxide is very uniformly absorbed onto the metal oxide. Calcination at temperatures between 450.degree. C. and 700.degree. C. results in complete reaction to form the lithium intercalation compound in less than 5 hours.

Process for preparing lithium intercalation compounds

Coordination catalyst systems comprising intramolecularly stabilized

The invention relates to the use of cyclic organometallic compounds as components in coordination catalyst systems, to corresponding coordination catalyst systems and also to processes for the preparation of polymers by coordination polymerization and of unsaturated hydrocarbons by catalyzed metathesis of alkenes and alkynes using such coordination catalyst systems.

Coordination catalyst systems

Molded bodies made of polyester containing covalent-bonded oxide

Inorganic fillers and organic matrix materials with refractive index

Surface-modified oxide particles and their use as fillers and modifying

Growing community of inventors

Darmstadt, Germany

Ludwig Pohl