Eckart Gmbh

Glassflake Limited

Eckart Gmbh & Co. Kg

Sudarshan Chemical Industries Ltd.

Ulrich Schmidt

Günter Kaupp

Dirk Schumacher

Frank Henglein

Christine Schilling

Ann-Katrin Gebhard

Stefan Trummer

Peter Krüger

Barbara Mendler

Katrin Steinbach

Michael Grüner

Oliver Struck

Ralph Schneider

Stefan Engel

Thomas Schuster

Christina Pippinger

Christian Wolfrum

Michaela Gerstacker

Jasmin Bleisteiner

Christian Schramm

Michael Gruener

Harald Weiss

Jens Depner

Peter Krueger

Sonja Kurz

Alexander Albrecht

Günther Kaupp

An embossed effect pigment includes a metallic substrate in platelet form with embossed structure having a periodic pattern with diffractive elements, said substrate having been produced by PVD methods, wherein the substrate has an elemental metal content of 80% to 100% by weight, based on the substrate, and wherein the effect pigment has been treated with a leafing additive for surface modification. A method of manufacture of an embossed effect pigment includes suspending a metallic substrate in in at least one solvent, adding a leafing additive to the suspension including the metallic substrate in the at least one solvent and stirring the suspension including the leafing additive, and separating the embossed effect pigment from the at least one solvent.

Embossed effect pigment and method of manufacture of embossed effect pigment

The invention relates to a nail varnish composition comprising: The invention further relates to a process for producing the nail varnish composition.

Nail varnish composition containing embossed effect pigments and surface-modified embossed effect pigments

The invention relates to a surface-modified effect pigment comprising particular additives and to the production thereof. The present invention further provides a nail varnish composition comprising a) at least one effect pigment that has been surface-modified with a starting material (additive), where the effect pigment comprises a substrate in platelet form and optionally at least one coating applied to the substrate, b) at least one hydrocarbon resin as binder, and c) at least one solvent or solvent mixture, where the starting material (additive) for surface modification of the effect pigment is at least one compound taken from the group consisting of phosphoric ester-containing, phosphonic ester-containing, phosphonic acid-containing, fatty acid-containing and/or silane-containing compounds or mixtures thereof.

Surface-modified effect pigment and nail varnish composition

The invention relates to effect pigments comprising artificial platelet-shaped substrates which have at least one optically active coating, where the effect pigments have a volume-averaged cumulative undersize distribution curve with the characteristic numbers D, Dand D, said cumulative undersize distribution curve having a span &#x394;D of 0.7-1.4, and the span &#x394;D being calculated in accordance with formula (I):&#x394;=()/&#x2003;&#x2003;(I),and the average thickness of the artificial platelet-shaped substrates being 500 nm to 2000 nm.

Effect pigments based on artificially produced substrates with a narrow size distribution

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 pearlescent pigments comprising a largely transparent platelet-shaped synthetic substrate having a density &#x3c1;and at least one optically active coating having a density &#x3c1;, the substrate having an average size dfrom a range from 2.0 &#x3bc;m to 8.0 &#x3bc;m and an average height hfrom a range from 40 nm to 110 nm and the total lead content of the pearlescent pigments is &#x2264;10 ppm. The invention further relates to a method for producing the pearlescent pigments, and also to the use thereof.

Pearlescent pigments on the basis of fine and thin synthetic 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 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 present invention relates to an effect pigment comprising as a substrate a glass flake with a coating, said coating comprising at least one layer of at least one high refractive material, said material having a refractive index of at least 1.8, and/or at least one layer of at least one semitransparent metallic material, wherein said glass flakes comprising the following composition: 65-75 wt.-% silicon oxide, preferably SiO2-9 wt.-% aluminum oxide, preferably AIO0.0-5 wt.-% calcium oxide, preferably CaO 5-12 wt.-% sodium oxide, preferably NaO 8-15 wt.-% boron oxide, preferably BO0.1-5 wt.-% titanium oxide, preferably TiO0.0-5 wt.-% zirconium oxide, preferably ZrObased on the weight of said glass flakes. The invention relates also to a method for producing the effect pigments as well as to the use of said effect pigments. The invention further relates to coating formulations based on the effect pigments.

Effect pigments comprising a glass flake substrate

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 present invention relates to a nail varnish including at least one effect pigment and at least one micronized wax, and to a process for producing it. Furthermore, the invention relates to the use of at least one micronized wax in a nail varnish and to an article provided with the nail varnish. Moreover, the invention relates to a mixture of at least one pigment and at least one micronized wax.

Nail varnish with a velvety feel

The present invention is directed to a cosmetic composition comprising an effect pigment based on a glass flake as a substrate with a coating, said coating comprising at least one layer of at least one high refractive material, said material having a refractive index of at least 1.8, and/or a semitransparent metal coating wherein said glass flakes comprising the following composition: 65-75 wt.-% silicon oxide, preferably SiO2-9 wt.-% aluminium oxide, preferably AlO0.0-5 wt.-% calcium oxide, preferably CaO 5-12 wt.-% sodium oxide, preferably NaO 8-15 wt.-% boron oxide, preferably BO0.1-5 wt.-% titanium oxide, preferably TiO0.0-5 wt.-% zirconium oxide, preferably ZrObased on the weight of said glass flakes. The invention is also directed to the use of the cosmetic composition.

Pearlescent pigments containing cosmetic compositions

A printing ink, preferably ink-jet ink, containing pearlescent pigments and at least one of at least one solvent, at least one radiation-curable component and at least one binder, wherein the pearlescent pigments comprise a substantially transparent platelet-shaped substrate having a density &#x3c1;and at least one optically active coating having a density &#x3c1;, and the pearlescent pigments have a dvalue for a cumulative frequency distribution of a volume-averaged size distribution function with a range from 3.5 to 15 &#x3bc;m. The invention further relates to a process for producing the printing ink.

Printing ink, in particular ink-jet ink, containing pearlescent pigments based on fine and thin substrates

Particles colored with at least one colorant, where the colored glass particles are glass platelets with an average diameter of 1 to 500 &#x3bc;m and the colorants at least include at least one of metallic nanoparticles and metal oxides. The glass platelets are planar and the colorants are present in a concentration from 1% to 55% by weight, based on the total weight of the colored glass platelets. The disclosure further relates to a method to a method for producing the colored glass particles and to the use thereof.

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Hersbruck, Germany

Ulrich Schmidt