The present invention relates to silver-colored 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, powder coatings, printing inks, security printing inks, plastics, ceramic materials, glasses, paper, for coating seed, in security applications, as dopant for the laser marking of plastics and papers, as additive for the laser welding of plastics, in cosmetic formulations and for the preparation of pigment preparations and dry preparations.

The present invention is related to magnetic pigments comprising a transparent flaky homogeneously composed substrate having two parallel major surfaces and a coating comprising a layered structure composed of a hematite and a magnetite layer, to a process for the production of said pigments as well as to their use.

An article including a magnetic-containing layer having a first surface and a second surface opposite the first; a first reflector layer external to the first surface of the magnetic-containing layer; a second reflector layer external to the second surface of the magnetic-containing layer; a first selective light modulator layer external to the first reflector layer; a second selective light modulator layer external to the second reflector layer; a first absorber layer external to the first selective light modulator layer; and a second absorber layer external to the second selective light modulator layer; wherein at least one of the first and second selective light modulator layers comprises at least one of a curing agent, and at least one coating aid is disclosed. Methods of making the disclosed article are also disclosed.

The present invention relates to pigments, comprising a plate-like substrate of glass having an average thickness of <1 m, especially of from 20 nm to 400 nm, and

(a) a dielectric material, especially a metal oxide, having a high index of refraction; or
(a) a metal layer, especially a thin semi-transparent metal layer;
a process for their production and their use in paints, ink-jet printing, for dyeing textiles, for pigmenting coatings (paints), printing inks, plastics, cosmetics, glazes for ceramics and glass.

An encapsulated palette flake includes a palette flake having a first surface and a second surface, and a layer on at least one of the first surface and the second surface. A blackness My of the encapsulated palette flake is greater than or equal to 110 and less than or equal to 140. A reflectivity of the encapsulated palette flake in a visible spectrum of electromagnetic radiation that is less than or equal to 10.0%. A reflectivity of the encapsulated palette flake in a near-IR and LiDAR spectrum of electromagnetic radiation that is between 10% and 90%. A method for forming an encapsulated palette flake includes combining a base solution comprising palette flakes and a precipitating agent with a solution comprising a copper source, drying the precipitate, and calcining the dried precipitate. The precipitating agent is selected from sodium hydroxide, sodium carbonate, or ammonium carbonate.

The invention relates to pearlescent pigments comprising a largely transparent platelet-shaped synthetic substrate having a density ?.sub.S and at least one optically active coating having a density ?.sub.M, the substrate having an average size d.sub.50 from a range from 2.0 ?m to 8.0 ?m and an average height h.sub.S from a range from 40 nm to 110 nm and the total lead content of the pearlescent pigments is ?10 ppm. The invention further relates to a method for producing the pearlescent pigments, and also to the use thereof.

There is disclosed a functional lamellar particle including an unconverted portion of the lamellar particle, wherein the unconverted portion includes a first metal, a converted portion of the lamellar particle disposed external to a surface of the unconverted portion, wherein the converted portion includes a chemical compound of the first metal; and a functional coating disposed external to a surface of the converted portion.

There is disclosed a lamellar particle including an unconverted portion of the lamellar particle, wherein the unconverted portion includes a first metal, a converted portion of the lamellar particle disposed radially outward of at least one of a surface of the unconverted portion, wherein the converted portion includes a chemical compound of the first metal.

The present invention relates to pearlescent pigments, to a process of manufacturing such pearlescent pigments based on a wet oxidation step as well as to the use of such pearlescent pigments.

The invention relates to a metal effect pigment including a metallic substrate in platelet form and a coating applied thereto, wherein the coating includes a spacer layer. The invention further relates to a process for production of and to the use of the metal effect pigment.