Merck Patent Gesellschaft MIT Beschrankter Haftung

Merck Patent Gmbh

Merck Patent Gesellschaft MIT Beschr&auml;nkter Haftung

Merck Patent Gesellschaft

Merck Patent Gesellschaft MIT

Karl Osterried

Reiner Vogt

Gerhard Pfaff

Matthias Kuntz

Michael Schmelz

Andrea Heyland

Sabine Schoen

Gerd Bauer

Norbert Sch&uuml;l

Wolfgang Hechler

Gerhard Herget

Stephanie Andes

G&uuml;nter Brenner

Dieter Br&uuml;ckner

Stefanie Andes

Dieter Bruckner

Gunter Brenner

Manfred Weigand

Johann Munz

Sabine Hock

Ian Charles Sage

Christoph Schmidt

Roland Martin

Johann Dietz

Ralf Glausch

Klaus Bernhardt

Hans-Dieter Bruckner

Hans-Dieter Br&uuml;ckner

Michael Uhlig

Margarete Herbski

Roman Maisch

Helge-Bettina Kniess

G&uuml;nther Brenner

Uta Maurer

Eva-Maria Neugebauer

Norbert Schul

Magarete Herbski

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 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

Multilayer interference pigment consisting of plateletlike titanium dioxide as carrier material, coated with alternating layers of metal oxides of low and high refractive index, the difference in the refractive indices being at least 0.1, which is obtainable by solidification and hydrolysis of an aqueous solution of a thermally hydrolyzable titanium compound on a continuous belt, detachment of the resulting coat, coating of the resulting titanium dioxide platelets, with or without drying in between, by a wet method with, alternately, a metal oxide hydrate of high refractive index and a metal oxide hydrate of low refractive index by hydrolysis of the corresponding, water-soluble metal compounds, separation, drying and, if desired, calcining of the material obtained.

Multi-coated interference 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 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.

Multilayer interference pigment consisting of plateletlike titanium dioxide as carrier material, coated with alternating layers of metal oxides of low and high refractive index, the difference in the refractive indices being at least 0.1, which is obtainable by solidification and hydrolysis of an aqueous solution of a thermally hydrolysable titanium compound on a continuous belt, detachment of the resulting coat, coating of the resulting titanium dioxide platelets, with or without drying in between, by a wet method with, alternately, a metal oxide hydrate of high refractive index and a metal oxide hydrate of low refractive index by hydrolysis of the corresponding, water-soluble metal compounds, separation, drying and, if desired, calcining of the material obtained.

Multilayer interference pigments

Colored pearl luster pigment consisting of a core of platelet shaped titanium dioxide and one or more layers of other metal oxides or metal oxide hydrates obtainable by solidifying an aqueous solution of a thermally hydrolyzable titanium compound on a continuous belt, detaching the resulting layer, coating the resulting titanium dioxide platelets, with or without drying in between, with one or more other metal oxides or metal oxide hydrates, for example Fe,O,, Fe,O,, FeOOH or Cr,O,, by a wet method, separating, drying and, if desired, calcining the material obtained.

Metal oxide coated titanium dioxide lamellas

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

Plate-like titanium dioxide reduction pigment

Titanate-containing pearlescent pigments

Plateletlike, substrate-free titanium dioxide pigment obtainable by solidifying an aqueous solution of a thermally hydrolyzable titanium compound on a continuous belt, detaching the resulting layer, coating the resulting titanium dioxide platelets, with or without drying in between, with further titanium dioxide by a wet method, and separating off, drying and calcining the material obtained.

Platelet-shaped titanium dioxide pigment

Thermochromic effect pigment and process for producing the same

The present invention relates to surface-modified pigments based on flaky substrates having improved settling and redispersing characteristics and to the preparation and use thereof.

Surface-modified flaky substrates having improved settling and

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Dieburg, Germany

Karl Osterried