Merck Patent Gesellschaft MIT Beschrankter Haftung

Merck Patent Gmbh

Merck Patent Gesellschaft MIT Beschr&auml;nkter Haftung

Merck Patent Gesellschaft

Merck Patent Gesellschaft MIT

Reiner Vogt

Gerhard Pfaff

Karl Osterried

Sabine Schoen

Norbert Sch&uuml;l

Matthias Kuntz

Johann Dietz

Stephanie Andes

Katsuhisa Nitta

Klaus Bernhardt

Hans-Dieter Br&uuml;ckner

Michael Uhlig

Klaus Bernhard

Johann Munz

Christoph Schmidt

Gerhard Herget

Helge Bettina Kniess

Ralf Glausch

Gerd Bauer

Rodney Riddle

Martin Friz

Susanne Rudolph

Klaus D Franz

Peter Reynders

Gerald Fuchs-Pohl

Wolf-Dietrich Weber

Dieter Br&uuml;ckner

Margarete Herbski

Elke Steudel

Norbert Schul

Sylvia Schmidt

Sabine George

Helge-Bettina Kniess

G&uuml;nther Brenner

Uta Maurer

Wilhelm Goebel

Eva-Maria Neugebauer

Nitta Katsuhisa

A pigment with a metallic luster, comprising a wafer-like substrate made of aluminium dioxide having a thickness of more than 250 nm and less than 1 &#x3bc;m, which is fully enveloped by a metal layer.

Pigment with a metallic luster

The present invention relates to multilayer pigments based on platelet-shaped metal substrates coated with two or more metal oxide layers by a one-pot process in an exclusively aqueous medium. The invention further relates to the use of the multilayer pigments in paints, varnishes, printing inks, including security printing inks, plastics, ceramic materials and cosmetic and for the laser formulations marking of plastics.

Multilayer pigments based on coated metal platelets

The present invention relates to pigment mixtures consisting of at least two components, component A being SiO flakes coated with one or more metal oxides and/or metals and component B being special-effect pigments, and to their use in varnishes, paints, printing inks, masterbatches, plastics and cosmetic formulations.

Pigment mixture

The present invention relates to a pigment preparation comprising a mixture of coated and/or uncoated SiO flakes, one or more special-effect pigments, and a phosphate derivative, and to the use thereof, especially in printing inks.

Pigment preparation and its use especially in printing inks

The invention relates to electrically conductive pigments which have, as conductive layer on a substrate, a tin oxide layer doped with phosphorus.

Conductive pigments

The present invention relates to pigment mixtures consisting of at least two components, component A being Sio flakes coated with one or more metal oxides and/or metals and component B being special-effect pigments, and to their use in varnishes, paints, printing inks, masterbatches, plastics and cosmetic formulations.

The invention relates to a platelet-shaped pigment having high luster and high covering power or high transparency, consisting of a transparent, inorganic, platelet-shaped matrix which can contain an additional constituent, characterized in that the additional constituent is a soluble or insoluble colorant and in that the matrix is coated at least on one side with one or more thin, transparent or semi-transparent reflective layers of metal oxides or metals to achieve the luster.

Colored and coated plateletlike pigments

A colored interference pigment having a platelet-shaped layer as substrate, a coating of at least one metal oxide layer and, optionally, a further layer, at least two layers comprising or consisting of colorants.

Colored interference pigment

The present invention relates to pigment mixtures consisting of at least two components, component A being SiO flakes coated with one or more metal oxides and/or metals and component B being platelet-shaped, acicular or spherical colorants or fillers, and to their use in particular in varnishes, paints, printing inks, powder coating materials, plastics and cosmetic formulations.

The present invention relates to rare earth metal sulfide or oxysulfide pigments and yttrium sulfide or oxysulfide pigments based on platelet-shaped substrates.

Sulfide and oxysulphide pigments

Multilayer pearl luster pigment based on an absorbing platelet-shaped substrate which is coated with alternating layers of a material of low refractive index and a material of high refractive index, or with a metal, the difference in the refractive indices being at least 0.1.

Multilayer pearl luster pigment based on an opaque substrate

Interference pigments having a blue mass tone

A pale electrically conductive pigment consisting of a substrate and an electrically conductive layer formed of phosphorus- and/or fluorine-doped tin oxide. There may be an interlayer disposed between the substrate and the conductive layer.

The present invention relates to pigment mixtures consisting of at least two components, component A being SiO.sub.2 flakes coated with one or more metal oxides and component B being one or more electrically conductive pigments, and to their use in varnishes, paints, printing inks and plastics.

Electrically conductive pigment mixture

The invention relates to electrically conductive pigments which as a conductive layer on a platelet-shaped or needle-shaped substrate have a niobium- and/or tantalum-doped tin oxide or titanium dioxide layer.

Growing community of inventors

Kranichstein, Germany

Reiner Vogt