Merck Patent Gmbh

Merck Patent Gesellschaft MIT Beschrankter Haftung

Merck Patent Gesellschaft

Merck Patent Gesellschaft MIT Beschr&auml;nkter Haftung

Bundesdruckerei Gmbh

Merck Patent Gesellschaft MIT Beschraenkter Haftung

Matthias Kuntz

Gerhard Pfaff

Rodney Riddle

Gerd Bauer

John Patrick

David Coates

Reinhold Rueger

Karl Osterried

Michael Schmelz

Andrea Heyland

Burkhard Krietsch

Reiner Delp

Dieter Heinz

Robert Hammond-Smith

Helge Bettina Kniess

Stephanie Andes

Dieter Br&uuml;ckner

Reiner Vogt

G&uuml;nter Brenner

Dieter Bruckner

Gunter Brenner

Stefanie Andes

Eike Poetsch

Manfred Paeschke

Simon Greenfield

Oliver Muth

Stephan Derow

Christina Schank

Jakob Kuen

Sabine Hock

Hans-Dieter Brueckner

Dietmar Raulin

Sabine Schoen

Mark John Goulding

Junyou Pan

Mark Andrew Verrall

Volker Hilarius

Peter Schmitt

Martin Friz

Susanne Rudolph

Donald Gordon Graham

Gerald Fuchs-Pohl

Michael Ukelis

Wolf-Dietrich Weber

Helmuth Krauss

Guy Gregory

Ute Honeit

Hans-Juergen Brehm

Klaus Bernhard

Bernd Muller

Reinhold Rüger

Christina Maggakis-Kelemen

Tony Bleasdale

Peter Howarth

Allan Marshall

André Salie

Max-Emanuel Van Ghemen

Gunter Nimtz

Dirk Reyermann

Andreas Walter

Ingrid Grobelsek

Bianca Katzenmeier

Hans J Bauer

Bernd M Uller

Siegfried Schmitzer

G Unther Feldmann-Schlobohm

Gunther Feldmann-Schlobohm

Sylvia Schmidt

The present invention relates to dielectric coatings and articles having high, but precisely defined specific surface resistances.

Dielectric coatings and articles

The present invention relates to thermally conductive pigments which consist of a substrate and a coating applied thereto comprising aluminum oxide and/or aluminum oxide hydrate, to a process for the preparation of these pigments, and to the use thereof.

Thermally conductive, plate-shaped pigment coated with aluminium oxide

The present invention relates to an electronic apparatus which contains an electronically active material and an oxygen ion pump for removing oxygen from the apparatus. Furthermore, the present invention also relates to the use of an oxygen ion pump for removing oxygen from an electronic apparatus.

Electronic apparatus having an oxygen ion pump

The present invention relates to semiconducting pigments based on flake-form substrates which have a doped tin dioxide layer on the surface and to the use of the pigments in paints, coatings, printing inks, plastics, security applications, floorcoverings, films, formulations, ceramic materials, glasses, paper, for laser marking, in thermal protection, in dry preparations, in pigment preparations and in particular as varistor pigment.

Pigments

The present invention relates to intensely colored and/or optically variable pigments which have a flake-form transparent or semitransparent electrically conductive core and at least one coloring dielectric layer surrounding the core, to a process for the preparation of such pigments, and to the use thereof.

Intensely coloured and/or optically variable pigments having an electrically conductive core

The present invention relates to a transparent, electrically conductive floor care composition, in particular for antistatic flooring, which is distinguished by the fact that it comprises one or more conductive pigments.

Electrically conductive floor care compositions

The present invention relates to an optically variable security element for protecting articles against counterfeiting, to a process for the production of a security element of this type, and to the use thereof.

Optically variable security element

The present invention relates to a machine-readable security element for security products which comprises at least one particulate substance having electroluminescent properties and a transparent, electrically conductive pigment, to a priming ink for the production of a security element of this type, and to a security product which includes the security element.

Machine-readable security element for security products

The present invention relates to optically variable pigments of high electrical conductivity which comprise a flake-form substrate, which essentially consists of silicon dioxide and/or silicon oxide hydrate, and an electrically conductive layer surrounding the substrate, to a process for the preparation thereof, and to the use of pigments of this type.

Optically variable pigments of high electrical conductivity

The present invention relates to photocatalytically active coatings for surfaces of buildings, vehicles, equipment, paths and the like which comprise interference pigments as photocatalytically active material and optionally an infrared light-absorbent material, to processes for the production of such surfaces, and to objects coated therewith.

Photocatalytically active coating

The invention relates to a machine-readable security element for security products, containing at least one particulate substance that has electroluminescent properties and a transparent, electrically conductive pigment. Also disclosed are a printing ink for producing such a security element and a security product comprising said security element.

The invention relates to a flat dual security feature which comprises two different security components, one of which can be verified in the visible spectral region and one of which can be verified in the ultraviolet spectral region of light, and which comprises flake-form effect pigments and luminescent pigments in such a low concentration that the latter are evident to the naked eye as individual particles under the action of UV light; to a process for the production thereof, and to the use thereof.

Dual security mark

The invention relates to a method of preparing a birefringent marking by printing a polymerisable liquid crystal material onto at least one side of a substrate and polymerising the liquid crystal material, to a birefringent marking obtained by this method, and to the use of the birefringent marking for decorative, security, authentification and identification applications.

Birefringent marking

Laser-markable pigments which are distinguished by the fact that an absorber is coated with a marker and optionally with a diffusion barrier are described. Further, processes for the preparation of the laser-markable pigments and methods for using them are described. The absorber is preferably an inorganic pigment or a filler. The marker is preferably an intrinsically laser-markable polymer, particularly a polyethylene terephthalate, acrylonitrile-butadiene-styrene, polystyrene, polyphenylene ether, liquid-crystal polymer or polyphenylene sulfide.

Laser-markable pigments containing an absorber coated with a marker

An anisotropic polymer film with improved alignments prepared by coating onto a substrate with a structured surface. The polymer films thereby obtained are useful in optical and electrooptical devices for decorative and security applications.

Method of preparing an anisotropic polymer film on a substrate with a structured surface

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Seeheim-Jugenheim, Germany

Matthias Kuntz