Back to results
US 12,527,726 B2Granted
Pigment mixture
AssigneeSusonity Commercial GmbH
InventorsSylke Klein, Lilia Heider, Carsten Lorenz, Sabine Schoen
Life of this patent
Estimating the term…
Abstract
The present invention relates to a pigment mixture based on spherical particles having a defined particle-size distribution, and to the use thereof in paints, coatings, printing inks, security printing inks, plastics, ceramic materials, glasses, in cosmetic formulations, as tracer, as filler and for the preparation of pigment preparations and dry preparations.
Claims21
A pigment mixture consisting of components A and B:
- component A consists of spherical base particles having a particle-size distribution D90 of 0.5-15 μm and coating layers, wherein the coating layers consist of a TiO2 layer, a SiO2 layer, and optionally an outer protective layer, wherein said spherical base particles are completely covered on their surface firstly with the TiO2 layer and subsequently with the SiO2 layer,
- and
- component B consists of spherical base particles having a particle-size distribution D90 of 0.5-15 μm and coating layers, wherein the coating layers consist of a TiO2 layer, an iron oxide layer or with a layer of a mixture of TiO2 and iron oxide, and optionally an outer protective layer, said spherical base particles are completely covered on their surface firstly with the TiO2 layer and subsequently with the iron oxide layer or with the layer of the mixture of TiO2 and iron oxide.
Dependencies are inferred from the claim text.