Eckart Gmbh

Glassflake Limited

Katrin Steinbach

Günter Kaupp

Michael Grüner

Ulrich Schmidt

Dirk Schumacher

Ralph Schneider

Frank Henglein

Michael Gruener

Peter Krueger

Jens Depner

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 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 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

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Nürnberg, Germany

Katrin Steinbach