Eckart Gmbh

Eckart Gmbh & Co. Kg

Frank Henglein

Ulrich Schmidt

Stefan Trummer

Günter Kaupp

Ralph Schneider

Klaus Greiwe

Peter Krüger

Werner Ostertag

Michael Grüner

Wolfgang Herzing

Bernhard Geissler

Martin Fischer

Mariel Brauer

Thomas Schuster

Katrin Steinbach

Jasmin Bleisteiner

Christian Schramm

Michael Gruener

Harald Weiss

Jens Depner

Peter Krueger

Alexander Albrecht

Hermann Birner

Bernhard GEIßLER

Günther Kaupp

Pearlescent pigments including a largely transparent platelet-shaped substrate having a density &#x3c1;and at least one optically active coating having a density &#x3c1;, the substrate having an average size dof 3 to 8 &#x3bc;m and an average height hof 40 to 110 nm. The disclosure further relates to a method for producing the pearlescent pigments, and also to the use thereof.

Pearlescent pigments based on fine and thin substrates

The invention relates to a pigment which reflects IR radiation, comprising an IR-reflecting core, the IR-reflecting core being provided with a substantially enveloping coating which is transparent to IR radiation, and in that the IR-reflecting pigment is substantially white. The invention further relates to a process for producing these pigments and also to their use.

White pigment reflecting IR radiation, production and use thereof

The invention relates to metallic effect pigments with coating, comprising a platelet-shaped substrate, where the coating comprises at least one hybrid inorganic/organic layer, the hybrid layer having at least partly an inorganic network that has one or more inorganic oxide components, and having at least one organic component, the organic component being at least partly an organic oligomer and/or polymer which is covalently bonded at least partly to the inorganic network via one or more organic network formers. The invention further relates to a method of producing these metallic effect pigments, and to their use.

Metal effect pigments comprising a mixed inorganic/organic layer, method for the production of such metal effect pigments, and use thereof

The invention relates to platelet-shaped pearlescent pigments that are coated with at least one mixed inorganic/organic layer for improving their application properties, and of these, particularly their mechanical properties, and to methods for the production thereof and to the use thereof. The said mixed inorganic/organic layer comprises at least one at least partially crosslinked inorganic metal-oxide component and an organic component. The organic component is at least one organic oligomer and/or polymer, which is covalently bonded, at least in part, to the inorganic network via network formers, wherein the coating comprises at least one mixed inorganic/organic layer, which mixed mixed layer comprises, at least in part, an inorganic network having one or more inorganic oxide component(s) and at least one organic component, the organic component being, at least in part, an organic oligomer and/or polymer covalently bonded, at least in part, to the inorganic network via one or more organic network formers. The invention also relates to a method for the production of such pearlescent pigments.

Pearlescent pigments coated with mixed inorganic/organic layers and method for the production thereof

The invention relates to metallic effect pigment, the metallic effect pigment having at least one diffractive structure and at least one layer which comprises metal nanoparticles and metal oxide phase, the metal of the metal oxide phase and the metal of the metal nanoparticles in this at least one layer being identical. The invention further relates to a process for preparing these metallic effect pigments, to a coating composition, and to a coated article.

PVD-metallic effect pigments with diffractive structure and metal nanoparticles, process for preparing them and use thereof

The invention relates to platelet-shaped pearlescent pigments that are coated with at least one mixed inorganic/organic layer for improving their application properties, and of these, particularly their mechanical properties, and to methods for the production thereof and to the use thereof. The said mixed inorganic/organic layer comprises at least one at least partially crosslinked inorganic metal-oxide component and an organic component. The organic component is at least one organic oligomer and/or polymer, which is covalently bonded, at least in part, to the inorganic network via network formers, wherein the coating comprises at least one mixed inorganic/organic layer, which mixed layer comprises, at least in part, an inorganic network having one or more inorganic oxide component(s) and at least one organic component, the organic component being, at least in part, an organic oligomer and/or polymer covalently bonded, at least in part, to the inorganic network via one or more organic network formers. The invention also relates to a method for the production of such pearlescent pigments.

The invention relates to a cosmetic composition for creating a cosmetic coating having a metallic and multicolored iridescent appearance, comprising a liquid phase and a PVD aluminum pigment, wherein said PVD aluminum pigment has diffractive structures containing from approximately 5,000 to approximately 20,000 structural elements per cm and a metallic aluminum content of from 90% to 100% by weight, based on the weight of the aluminum pigment, and is present in the cosmetic composition at a pigmentation level of from 1.0 to 8.0% by weight, based on the total weight of the cosmetic composition. The invention further relates to an artificial fingernail.

Cosmetic composition for the creation of a cosmetic coating having a metallic, multicolored iridescent appearance; and artificial fingernail

A platelet-shaped PVD metallic effect pigment having first and second outer faces, the platelet-shaped PVD metallic effect pigment having at least one PVD layer, the at least one PVD layer including elemental metal with clusters of elemental metal and metal oxide. The amounts of elemental metal in the first outer face and in the second outer face of the PVD metallic effect pigment are different from one another and they differ by at least 10 atom %. The disclosure further relates to a method for producing these platelet-shaped PVD metallic effect pigments, and to their use.

PVD metal effect pigment having gradient on nanoscale metal particles, method for the production thereof and use thereof

The invention relates to effect pigments having an aluminum core or aluminum alloy core and an aluminum oxide-containing or aluminum oxide/hydroxide-containing layer enveloping said aluminum core or aluminum alloy core, obtained by chemical wet-process oxidation of lamellar aluminum pigments or aluminum alloy pigments, the content of metallic aluminum in the aluminum core or aluminum alloy core being not more than 90% by weight, based on the total weight of the pigment, wherein the oxidized aluminum pigments or aluminum alloy pigments exhibit at least one highly refractive metal chalcogenide layer having a refractive index of &#x3e;1.95, and a mixed layer is formed between the highly refractive metal chalcogenide layer and the enveloping aluminum oxide-containing or aluminum oxide/hydroxide-containing layer. The invention further relates to a process for the production of such effect pigments and to the use thereof.

Effect pigments having an aluminum or an aluminum aloy core, process for the production thereof and use thereof

The invention relates to pearlescent pigments comprising platelet-shaped substrate, comprising metal oxide, and protective layer, said metal oxide having a refractive index of more than 1.8, where the protective layer is composed of an organic chemically surface modified SiOlayer, the organic chemical surface modification being applied on the SiOlayer. The invention further relates to a process for preparing these pearlescent pigments and to their use.

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The invention relates to pearlescent pigments with a platelet-shaped substrate comprising metal oxide and having a first and a second protective layer, said metal oxide having a refractive index of greater than 1.8, there being on the platelet-shaped substrate a first protective layer comprising cerium oxide and/or cerium hydroxide and a second protective layer of SiO, applied to which is an organic chemical aftercoat comprising at least one silane having at least one functional bond group and at least one silane without a functional bond group, it being possible for metal oxide layers other than cerium oxide and SiOto be disposed between the first and the second protective layer. The invention further relates to a process for preparing these pigments, and to the use thereof.

The present invention is concerned with soft-magnetic iron effect pigments with metallic luster, which are produced by grinding reductively treated carbonyl iron powder, and which are passivated either during grinding or subsequent to the grinding. The products find application in the decorative and functional fields in paint and lacquer coatings, coloring of plastics, in printing, cosmetics, and glass and ceramics.

Iron effect pigments

The present invention deals with metal oxide coated, flake shaped soft iron pigments. The characteristic feature is a reflector substrate, which is produced by deformation of reduced carbonyl iron powder. The pigments are colorful, display metallic luster and a high magnetic permeability. They can be oriented in the medium by means of an external magnetic field. The novel pigments find use in the decorative and/or functional field, particularly in lacquers, paints, plastics, in printing, in glass, ceramics and in cosmetics.

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Nürnberg, Germany

Frank Henglein