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Merck Patent Gesellschaft MIT Beschrankter Haftung

Merck Patent Gesellschaft MIT Beschr&auml;nkter Haftung

Merck Patent Gesellschaft

Merck Patent Gesellschaft MIT

Merck Patent Gesellschaft MIT Beschraenkter Haftung

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Sabine Schoen

Harald Hirschmann

Gerhard Pfaff

Melanie Klasen-Memmer

Peer Kirsch

Christoph Schmidt

Volker Reiffenrath

Michael Heckmeier

Matthias Bremer

Kazuaki Tarumi

Marcus Reuter

Reiner Vogt

Katsuhisa Nitta

Detlef Pauluth

Brigitte Schuler

Rocco Fortte

Karl Osterried

Martina Windhorst

Ekkehard Bartmann

Constanze Brocke

Stephanie Andes

Ralf Anselmann

Eike Poetsch

Satoru Kobayashi

Achim Goetz

Michael Junge

Izumi Saito

Ursula Patwal

Christian Hock

Stephan Derow

Gerhard Herget

Johann Dietz

Klaus Ambrosius

Klaus Bernhardt

Joachim Krause

Rudolf Eidenschink

Herbert Plach

Reinhard Hittich

Michael Wittek

Lars Lietzau

Matthias Kuntz

Hideo Ichinose

Volker Meyer

Tamio Noguchi

Ralf Petry

Graziano Archetti

Wolfgang Hechler

Mark Goebel

Dagmar Klement

Rodney Riddle

Sylke Klein

Ryuta Suzuki

Monika Bauer

Norbert Sch&uuml;l

Thomas Rathschlag

Michael Jungnitz

Fumiko Sasaki

Ulrich Schoenefeld

Noriyuki Matsuda

Koshiro Kunii

Kirsten Fritsche

Carsten Griessmann

Dieter Heinz

Clarissa Weller

Andreas Pohle

Doreen Warthe

Juliane Suermann

Sven Christian Laut

Lilia Heider

Yukitaka Watanabe

Yasushi Sugiyama

Yuji Takenaka

Peter Best

Sven Sch&uuml;pfer

Martina Weidner

Georg Lüssem

Kaja Christina Deing

Sabine Melson

Carsten Plueg

Stefan Schlueter

Sven Schupfer

Dagmar Zimmermann

Veronika Hochstein

Johann Munz

Kaiman Shimizu

Peter Reynders

Georg L&uuml;ssem

Christina Schank

Brigitte Husseini

Wolf-Dietrich Weber

Uwe Lenz

Tanja Delp

Uta Hillg&auml;rtner

Philipp Wucher

Masahiro Iijima

Klaus Boehm

Carsten Lorenz

Antje Mühlfeld

Melanie Klassen-Memmer

Antje M&uuml;hlfeld

A pigment mixture comprising at least two or three interference pigments of different interference colours selected from the colours red, green and blue, suitable for use in paints, coatings, printing inks, security printing inks, plastics, ceramic materials, glasses and in the preparation of pigment preparations, dry preparations and in particular cosmetic formulations.

Pigment mixture

A liquid-crystal (LC) medium based on a mixture of polar compounds, its use for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the vertically aligned mode, to an LC display of the vertically aligned mode containing the LC medium, especially an energy-saving LC display and a process of manufacturing the LC display.

Liquid-crystal medium

The present invention relates to a liquid-crystalline medium (LC medium), to the use thereof for electro-optical purposes, and to LC displays containing this medium.

Alpha-Alumina flakes having a particle thickness of 130-400 nm, a D-value of 15-30 μm, a D-value of 30-45 μm and a D-value of <9.5 μm. Use of the alumina flakes in varnishes, paints, automotive coatings printing inks, masterbatches, plastics and cosmetic formulations. Also, use of the alumina flakes as a substrate for effect pigments and in organic dyes.

Alpha-alumina flakes

α-alumina flakes

A liquid-crystalline medium having least one compound of the formula I, and at least one compound of the formulae ST-1 to ST-17, in which Rand R*, Aand A*, Zand Z*, X, Land L, R, ring A, Z, p and q have the meanings indicated in claim, and the use thereof for an active-matrix display, in particular based on the VA, PSA, PA-VA, SS-VA, SA-VA, PS-VA, PALC, IPS, PS-IPS, UB-FFS, U-IPS, FFS or PS-FFS effect.

Liquid-crystalline medium

The present invention relates to effect pigments which are based on flake-form substrates having a circular form factor of 1.2-2 and are coated with at least one high-refractive-index layer, and to the use thereof, inter alia in paints, coatings, printing inks, plastics and in cosmetic formulations.

Effect pigments

Effect pigments based on AlOflakes with high weather resistance and less photoactivity and to their use thereof in paints, industrial coatings, automotive coatings, printing inks, cosmetic formulations. The effect pigments have a ratio of the amount by weight of AlOof the AlOflake and the amount by weight of the metal oxide(s) of the coating layer(s) in the range of from 27:73 to 83:17 based on the total weight of the effect pigment.

The invention relates to a liquid-crystalline medium, characterised in that it comprises one or more compounds of the formula IA, andone or more compounds of the formula IB, in which R, R, X, Xand Yhave the meanings indicated in Claim, and to the use thereof for electro-optical purposes, in particular for shutter glasses, 3D applications, in TN, PS-TN, STN, TN-TFT, OCB, IPS, PS-IPS, FFS, PS-FFS and PS-VA-IPS displays.

A blended composition containing uncoated AlOflakes having a thickness of &#x2265;500 nm and a D-value of 15-30 &#x3bc;m and a D-value of 30-45 &#x3bc;m, and/or coated AlOflakes having a thickness of &#x2265;500 nm and a D-value of 15-30 &#x3bc;m and a D-value of 30-45 &#x3bc;m, which have been coated with at least one layer of a metal oxide, mixtures of at least two metal oxides, metal, metal sulphide, titanium suboxide, titanium oxynitride, FeO(OH), metal alloys and/or rare earth compounds, and their use in various formulations.

The present invention relates to alumina flakes having a defined thickness and particle size distribution and to their use in varnishes, paints, automotive coatings printing inks, masterbatches, plastics and cosmetic formulations and as substrate for effect pigments.

&#x3b1;-alumina flakes

The present invention relates to interference pigments based on transparent, low-refractive-index, flake-form substrates which have a high-refractive-index coating consisting of TiOhaving a layer thickness of 20-200 nm and optionally an outer protective layer, and to the use thereof in paints, coatings, printing inks, security printing inks, plastics, button pastes, ceramic materials, glasses, for seed coloring, as dopants in the laser marking of plastics and papers, as additive for the laser welding of plastics, as additive for coloring in the foods and pharmaceuticals sectors, and in cosmetic formulations and for the preparation of pigment compositions and dry preparations.

Interference pigments

Alpha-Alumina flakes having a particle thickness of 130-400 nm, a D-value of 15-30 &#x3bc;m, a D-value of 30-45 &#x3bc;m and a D-value of &#x3c;9.5 &#x3bc;m. Use of the alumina flakes in varnishes, paints, automotive coatings printing inks, masterbatches, plastics and cosmetic formulations. Also, use of the alumina flakes as a substrate for effect pigments and in organic dyes.

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Herten, Germany

Sabine Schoen