Eckart Gmbh

Glassflake Limited

Dirk Schumacher

Günter Kaupp

Michael Grüner

Ulrich Schmidt

Oliver Struck

Sebastian Hoefener

Thomas Schneider

Katrin Steinbach

Christian Rummer

Stefan Trummer

Ralph Schneider

Thomas Schuster

Phu Qui Nguyen

Christian Wolfrum

Oliver Bedford

Barbara Mendler

Thomas Voit

Michael Gruener

Frank Hippmann

Sebastian Höfener

Andreas Gipp

Günther Kaupp

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

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 copper-containing metal pigments, wherein the copper-containing metal pigments have an elemental copper content of at least 50 wt.-%, relative to the total weight of the uncoated copper-containing metal pigment, wherein the copper-containing metal pigments have at least one enveloping metal oxide layer and at least one enveloping chemically non-reactive plastic layer, wherein the sum of the amounts of the at least one chemically non-reactive plastic layer and of the at least one metal oxide layer lies in a range of from 10 to 50 wt.-%, relative to the weight of the uncoated metal pigment, and the weight ratio of the at least one metal oxide layer to the at least one chemically non-reactive plastic layer lies in a range of from 1:2 to 1:20. The invention furthermore relates to a method for producing these pigments and the use thereof.

Copper-containing metal pigments with a metal oxide layer and a plastic layer, method for the production thereof, coating agent and coated object

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 present invention concerns coated metal pigments, the production thereof, and the use thereof. The present invention also concerns coating agents containing the aforementioned metal pigments, as well as objects coated with such coating agents.

Coated metal pigments, method for the production and use thereof, coating agent and article

A silver-colored pigment is provided having a nonmetallic platelet-shaped substrate and at least one ilmenite-containing coating, wherein the nonmetallic platelet-shaped substrate is a nonmetallic platelet-shaped synthetic substrate and the amount of iron compounds, calculated as elemental iron, in the pigment is less than 5.0 % by weight, based on the total weight of the pigment. Processes for preparing the pigment also are provided.

Highly lustrous silver-colored pigments with high opacity and metallic appearance, process for the preparation thereof and use of same

A coated wet-chemically oxidized aluminum effect pigment is provided having at least one metal oxide layer having at least one metal oxide which differs from aluminum oxide and an enveloping organic polymer layer, wherein the weight ratio of the metal oxide of the metal oxide layer to aluminum oxide in the wet-chemically produced aluminum oxide layer of uncoated wet-chemically oxidized aluminum effect pigment is in a range of from 1:1 to 1:40. Also, a method for the production of the pigment is provided.

Coated, wet-chemically oxidized aluminum effect pigments, method for the production thereof, coating agent and coated object

The present invention relates to an effect pigment comprising a plate-shaped non-metallic substrate and at least one copper-containing coating, wherein the average particle size Dof the effect pigment is more than 5 &#x3bc;m and the copper content of the effect pigment is in a range from 3 to 70 wt.-%, relative to the total weight of the effect pigment. The invention furthermore relates to a method for producing the latter and use of the effect pigment in anti-fouling coatings.

Plate-shaped effect pigment comprising a copper-containing coating, method for the production thereof, and use thereof

The present invention relates to a cosmetic formulation including a cosmetically acceptable medium and at least one silver-colored pigment, the silver-colored pigment including a nonmetallic platelet-shaped substrate and at least one ilmenite-containing coating.

Cosmetic formulations comprising high gloss non-metallic silver-colored pigments

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

Multilayer pearlescent pigments comprising platelet-shaped transparent substrates provided with an optically active coating, where the optically active coating includes at least The disclosure further relates to a method for producing these multilayer pearlescent pigments, and also to their use.

High-gloss multilayer effect pigments having a chromatic interference color and a narrow size distribution, and method for the production thereof

Multilayer pearlescent pigments based on platelet-shaped transparent substrates with an optically active coating, where the optically active coating includes at least

High-gloss multilayer effect pigments having a narrow size distribution, and method for the production thereof

Multilayer pearlescent pigments with a silver interference color, based on platelet-shaped transparent substrates with an optically active coating, where the optically active coating includes at least The multilayer pearlescent pigments have the indices D, D, Dfrom the cumulative frequency distribution of the volume-averaged size distribution function, with a span &#x394;D of 0.7 -1.4, the span &#x394;D being calculated in accordance with the formula &#x394;D =(D- D)/D. The invention further relates to a method for producing these multilayer pearlescent pigments, and also to their use.

High-gloss multilayer effect pigments having a silver interference color and a narrow size distribution, and method for the production thereof

Multilayer pearlescent pigments comprising platelet-shaped transparent substrates provided with an optically active coating, where the coating includes at least The disclosure further relates to a method for producing these multilayer pearlescent pigments, and also to their use.

High-gloss multilayer effect pigments having a non-silver interference color and a narrow size distribution, and method for the production thereof

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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Pegnitz, Germany

Dirk Schumacher