Merck Patent Gmbh

Merck Patent Gesellschaft MIT Beschrankter Haftung

Reinhold Rueger

Matthias Kuntz

Holger Winkler

Ralf Petry

Tim Vosgroene

Bjoern Kleist

Burkhard Krietsch

Ulrich Quittmann

Gerhard Pfaff

Walter Tews

Helge Bettina Kniess

Klaus Ambrosius

Otto Stahlecker

Michael Jungnitz

Marcus Mathias

Gerald Fuchs-Pohl

Silvia Rosenberger

Frank Ott

Christina Maggakis-Kelemen

Anke Geisen

Gerald Karn

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 colored laser-markable and laser-weldable polymeric materials which are distinguished by the fact that they comprise, as absorber, at least one doped tin oxide or indium oxide having a large specific surface area.

Laser-markable and laser-weldable polymeric materials

The present invention relates to laser-markable and laser-weldable polymeric materials which are distinguished by the fact that they comprise, as laser absorber, at least one copper-doped zinc sulfide.

The present invention relates to electrically conductive, colored interference pigments, in particular flake-form interference pigments, which have an outermost layer which comprises crystalline carbon in the form of graphite and/or graphene, to a process for the preparation of such pigments, and to the use of the pigments prepared in this way.

Electrically conductive, colored interference pigments

The present invention relates to non-metallic interference pigments, in particular laminar interference pigments, which comprise a thin high-refractive layer and an outermost layer that contains crystalline carbon in the form of graphite and/or graphene. The invention also relates to a method for producing such pigments and the use of the thus produced pigments.

Non-metallic pigments having metal properties

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 electrically conductive pigments, to a process for the preparation thereof and to the use thereof, in particular in antistatic or dissipative articles or surfaces, for example in paints, coatings, printing inks or floorcoverings.

Electrically conductive pigment

The present invention relates to transparent, electrically semiconducting interference pigments having high color strength, and in particular to flake-form interference pigments which comprise an oxygen-deficient layer of TiO, to a process for the preparation of such pigments, and to the use of the pigments prepared in this way.

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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 invention relates to surface-modified phosphor particles based on luminescent particles of (Ca,Sr,Ba)SiOand/or other silicates, in each case individually or mixtures thereof with one or more activator ions, such as Eu, Mn, Ce and/or Mg and/or Zn, where at least one metal, transition-metal or semimetal oxide coating and an organic coating are applied to the luminescent particles, and to a preparation process.

Surface-modified phosphors

The invention relates to coated phosphor particles comprising luminescent particles and at least one, preferably substantially transparent, metal, transition-metal or semimetal oxide coating, and to a process for the production thereof.

Coated phosphor particles with refractive index adaption

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 invention relates to surface-modified phosphor particles based on luminescent particles which comprise at least one luminescent compound, where (Ca,Sr,Ba)SiOand other silicates having one or more activator ions, such as Eu, Ce and Mn, are excluded as luminescent compounds, and where at least one inorganic layer comprising oxides/hydroxides of Si, Al, Zr, Zn, Ti and/or mixtures thereof and an organic coating of organosilanes or polyorganosiloxanes (silicones) and/or mixtures thereof are applied to the luminescent particles, and to a production process.

Surface-modified conversion phosphors

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 a glass composition comprising crystalline phases, and to glass flakes produced therefrom. These glass flakes can be used as base substrate for effect pigments. The glass flakes can furthermore be used in paints, coatings, printing inks, plastics and in cosmetic formulations. The glass flakes are converted into glass-ceramics, and are present in one of the following composition ranges I or II in % by weight: I: 40-50 SiO, 10-20 BO, 10-20 NaO, 15-30 TiO; II: 10-60 SiO, 5-30 BO, 5-40 TiO, 2-20 NbO, 2-20 FeO, 5-40 NaO+KO+CaO+SrO+BaO.

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Roedermark, Germany

Reinhold Rueger