21results about "Pigment preparation" patented technology

The present invention relates to interference pigments comprising layers of zinc sulfide-based materials. The pigments advantageously comprise a low refractive index core and at least one high refractive index layer comprising zinc sulfide. The present invention also proposes a method for synthesizing these pigments by heterogeneous precipitation of zinc sulfide onto a powdery support, which is achieved by adding a zinc salt solution to a reaction medium containing a dispersion of the powdery support and titrating a sodium sulfide solution at a certain pH. The present invention also relates to cosmetic compositions comprising these interference pigments but lacking titanium dioxide, which is typically introduced as a filler or by providing cosmetic ingredients containing titanium dioxide.

This invention provides a highly saturated pigment that possesses high gloss and opacity, high mechanical stability and high chemical stability, and can be produced using a simple method with minimal material input. [Solution] An absorbent effect pigment comprising a microplate-shaped nonmetallic substrate and a coating applied to the substrate, wherein the coating comprises a) optionally a layer 1 comprising or consisting of tin oxide, tin hydroxide, and / or tin oxide hydrate, b) a layer 2 comprising at least one metal oxide, metal hydroxide, and / or metal oxide hydrate, and c) a layer 3 comprising at least one metal oxide, metal hydroxide, and / or metal oxide hydrate, wherein at least one of layers 2 and 3 comprises at least two different metal ions, and layers 2 and 3 are blocked by a spacer layer.

The present invention is directed to effect pigments with solvochromic properties. These effect pigments have a structure comprising a substrate in platelet form and a coating applied to the substrate, wherein the coating comprises: optionally a layer (1) comprising or consisting of at least one of tin oxide, tin hydroxide and / or tin oxide hydrate, a layer (2) comprising at least one of metal oxide, metal hydroxide and / or metal oxide hydrate, and a layer (3) comprising at least one of metal oxide, metal hydroxide and / or metal oxide hydrate, wherein the layers (2) and (3) comprise in their metal oxide, metal hydroxide and / or metal oxide hydrate in a majority two different metal ions from the group consisting of Ti, Fe, Sn or Zr and a further spacer layer (4) being located in between layers (2) and (3), wherein layer (4) has a porous structure comprising cavities and connectors. The solvochromic properties denote to the effect pigment having a first interference color under ambient atmosphere which changes reversibly to a second interference color, when the effect pigment comes into contact with a solvent.

The present invention relates to interference pigments comprising layers of zinc sulfide-based materials. The pigments advantageously comprise a low refractive index core and at least one high refractive index layer comprising zinc sulfide. The present invention also proposes a method for synthesizing these pigments by heterogeneous precipitation of zinc sulfide onto a powdery support, which is achieved by adding a zinc salt solution to a reaction medium containing a dispersion of the powdery support and titrating a sodium sulfide solution at a certain pH. The present invention also relates to cosmetic compositions comprising these interference pigments but lacking titanium dioxide, which is typically introduced as a filler or by providing cosmetic ingredients containing titanium dioxide.

Disclosed is a composite particle including an alumina particle and an inorganic coating layer provided on the surface of the alumina particle. The alumina particle contains molybdenum (Mo), and the inorganic coating layer contains a composite metal oxide.

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.

An embodiment of the present application discloses a display panel, a manufacturing method thereof, and a display device thereof. The display panel includes a light emission functional layer and a color filter layer, the color filter layer includes a light shielding units, a light shielding material in the light shielding units includes a light shielding composition. The light shielding composition includes a plurality of carbon black particles and at least one function group located on surfaces of the carbon black particles. The function group is an acidic functional group or a free radical capture group, the acidic functional group is one of a carboxyl group, a hydroxy group, and a carbonyl group. The free radical capture group is a ketone group.

Weather resistant pearlescent pigment comprising a basic pearlescent pigment which comprises a transparent substrate and at least one metal oxide layer with a refractive index > 1.8 and thereon a weather stabilizing top coating which comprises a first and a second metal oxide followed by an organofunctional surface modification layer, wherein in variant a) the weather stabilizing top coating comprises a first metal oxide, metal hydroxide or oxide hydrate of Zn followed by a second metal oxide, metal hydroxide or oxide hydrate of Si, Zr or Al or mixtures thereof or in variant b) the weather stabilizing top coating consists of a mixture of the first metal oxide, metal hydroxide or oxide hydrate of Zn and the second metal oxide, metal hydroxide or oxide hydrate of Si, Al and / or Zr and wherein in variant a) or b) the carbon content of the weather stabilizing top coating is less than 0.50 wt.%, based on the total weight of the weather resistant pearlescent pigment.

The present invention relates to opaque, fluoride-doped effect pigments with metallic luster based on platelet-shaped substrates, as well as a method for producing these pigments and their use, in particular in automotive paints and cosmetic formulations.

There is disclosed a method including chemically converting a first material of a lamellar particle into a compound of the first material. The step of chemical conversion can be performed by a reactant, and the reactant can be in a form of at least one of a solid state, a liquid state, a vapor state, and a plasma state.

An asymmetric pigment including a first Fabry-Perot structure; and a second Fabry-Perot structure; wherein the first Fabry-Perot structure and the second Fabry-Perot structure have a similar hue angle within + / −45 degrees is disclosed. Other asymmetric pigments are also disclosed as well as methods of making the disclosed pigments.

The invention relates to a medium-gradation red effect pigment with high chroma and brightness, which uses a metal as a sheet-like substrate coated with a colored absorbing layer of iron oxide or iron oxyhydroxide.

A metal effect pigment, which is surface-treated with A) phosphoric acid (H3PO4), B) tetraethyl orthosilicate (TEOS), and C) at least one organic coupling agent, and which exhibits excellent humidity resistance without affecting the chroma, gloss, and color of the base metal effect pigment, its manufacturing method, and its use.

The present invention is directed to a mid-shade red effect pigment with high chroma and lightness using a metal as flaky substrate which is coated with a colored absorbing layer of iron oxide or iron-oxide hydroxide.

The present application relates to the technical field of pearl pigment, and particularly relates to an inorganic pearl pigment with imitation cochineal red phase and a preparation method thereof. The inorganic pearl pigment with imitation cochineal red phase comprises a lamellar base material, the lamellar base material is sequentially coated with coating layers with different refractive indexes, and the coating layers comprise a first layer of high-refractive-index metal oxide, a low-refractive-index crosslinking layer, a promoting layer and a second layer of high-refractive-index metal oxide arranged in sequence. The purpose is to make the pearl pigment composition free of any organic colorant, and the prepared pearl pigment with imitation cochineal red phase has high brightness and color saturation, the stacking color phase is comparable to cochineal red lake, and the pearl pigment with imitation cochineal red phase also has good dispersibility, solvent resistance and weather resistance.

The invention relates to a method for preparing colored materials by heterogeneous nucleation of metallic nanoparticles, said nanoparticles having optical properties based on the surface plasmon phenomenon. The invention also relates to said colored materials obtained, as well as compositions comprising them. In particular, the method for preparing the colored particulate material by heterogeneous nucleation includes, notably, mixing at room temperature a suspension comprising: - at least one salt of a metallic element, said metallic element having a plasmonic effect, - at least one reducing agent, and - at least one particulate substrate, said mixture of the suspension forming a colored particulate material.

Disclosed are a near-infrared reflective functional pigment, a paint, and a panel, particularly for a vehicle, etc. The pigment according to the present invention includes: a flaky substrate; a first metal oxide layer coated on at least a portion of the upper part of the substrate and having a refractive index of 1.8 or more; and a second metal oxide layer coated on at least a portion of the upper part of the first metal oxide layer and including an absorptive material. Also, the pigment reflects an IR electron beam of 850 nm to 950 nm by an average of 30% or more.

Disclosed in the present invention are near-infrared reflecting functional pigment, paint, and panel, especially, used for a vehicle pigment or the like. The pigment according to the present invention comprises: a platelet-like substrate; a first metal oxide layer coated on at least a portion of the substrate and having a refractive index of 1.8 or larger, and a second metal oxide layer coated on at least a portion of the first metal oxide layer and containing an absorbent material, wherein the pigment reflects on average at least 30% of an IR electron beam of 850-950 nm.

To provide a high-chroma pigment having high gloss and high hiding power, which has high mechanical stability and high chemical stability and is simultaneously producible with low material input in a simple manner.SOLUTION: There is provided an absorbent effect pigment comprising a nonmetallic substrate in platelet form and a coating applied to the substrate, wherein the coating includes: a) optionally a layer 1 comprising or consisting of tin oxide, tin hydroxide and / or tin oxide hydrate; b) a layer 2 comprising at least one of metal oxide, metal hydroxide and / or metal oxide hydrate, wherein the metal ion is at least one metal ion selected from the group of metals consisting of Ti, Fe, Sn, Mn, Zr, Ag, Zn, Cu, and Ce; and c) a layer 3 comprising at least one of metal oxide, metal hydroxide and / or metal oxide hydrate, wherein the metal ion is at least one metal ion selected from Ti or the like.SELECTED DRAWING: None

An asymmetric pigment including a first Fabry-Perot structure; and a second Fabry-Perot structure; wherein the first Fabry-Perot structure and the second Fabry-Perot structure have a similar hue angle within + / −45 degrees is disclosed. Other asymmetric pigments are also disclosed as well as methods of making the disclosed pigments.

The present invention is related to effect pigments exhibiting a deep black body color as well as a blue interference color, to a process for the production of such pigments as well as to the use thereof, especially in coating compositions.