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Cosmetics Ingredients
Patent

EFFECT PIGMENTS


Application Date:
May 11, 2017
USPTO Patent:
US 15127292
Abstract:

The present invention relates to silver-coloured effect pigments having a strong sparkle effect based on Al2O3 flakes and to the use thereof in paints, button pastes, automotive paints, automotive refinish paints, p...

Inventors:
Johann DIETZ, Dietzenbach (DE)
Cornelia FOERDERER, Heppenheim (DE)
Nicole HAFERKORN, Pfungstadt (DE)
Gerhard PFAFF, Muenster (DE)
Doreen MCFARLANE, Bickenbach (DE)
International Classification:
C09C 1/00 (20170511); C09D 17/00 (20170511); C09D 11/037 (20170511); C08K 9/02 (20170511); A61K 8/29 (20170511); A61Q 1/02 (20170511); A61K 8/02 (20170511); C09C 1/40 (20170511); A61K 8/26 (20170511)

Claims

What is claimed is:

1. Effect pigments, characterised in that Al2O3 flakes having an equivalence diameter distribution according to which 90% of the particles are in the range from 5-45 μm have on the surface two highly refractive coatings having a refractive index n>1.9, where the layers consist of titanium dioxide and ilmenite (FeTiO3)...

Description

The invention relates to silver-coloured effect pigments having a strong sparkle effect based on Al2O3 flakes which have two highly refractive layers and to the use thereof, in particular, in paints, coatings, printing inks, plastics, as dopant for the laser marking of plastics and papers, as additive in cosmetic formulations...

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