43results about "Pigment preparation" patented technology

The present invention discloses a near-infrared reflective functional pigment, a paint, and a panel that are particularly used in vehicle paints and the like. The pigment according to the present invention comprises a platelet-shaped substrate, a first metal oxide layer having a refractive index of 1.8 or more coated on at least a portion of the top of the substrate, and a second metal oxide layer comprising an absorbing material coated on at least a portion of the top of the first metal oxide layer, and reflects an average of 30% or more of IR electron radiation in the range of 850 to 950 nm.

The invention relates to an interferometric pigment comprising a layer of zinc sulfide-based material. The pigment advantageously comprises a low refractive index core and at least one high refractive index layer comprising zinc sulfide. The invention also proposes a method for synthesizing these pigments by non-homogeneously precipitating zinc sulfide on a powdered support, by adding a zinc salt solution to a reaction medium containing a dispersion of the powdered support, titrating a sodium sulfide solution having a fixed pH at a moderate temperature to obtain a precipitate. The invention also relates to cosmetic compositions comprising these interference pigments free of titanium dioxide, titanium dioxide being typically introduced as a filler or by providing a cosmetic ingredient containing titanium dioxide.

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.

A solid composite material (16) combining:an inorganic pigment (10) in the form of discrete particles each comprising a colored core and a coating adapted to allow light to pass through;and a matrix (12) based on metalloid or metal oxide, said matrix being adapted to allow light to pass through.

The invention relates to an interferometric pigment comprising a layer of zinc sulfide material. The pigment advantageously comprises a low refractive index core and at least one high refractive index layer comprising zinc sulfide. The invention also proposes a method for synthesizing these pigments by heterogeneously precipitating zinc sulfide on a powdered support by adding a zinc salt solution to a reaction medium containing a dispersion of the powdered support and titrating a sodium sulfide solution having a fixed pH at a moderate temperature to obtain a precipitate. The invention also relates to cosmetic compositions comprising these interference pigments free of titanium dioxide, wherein titanium dioxide is typically introduced as a filler or by providing a cosmetic ingredient 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.

Disclosed are an effect pigment that realizes substantially the same color at different view angles and a method for preparing the same. The effect includes a platelet-shaped substrate; and a pigment particle layer composed of pigment particles attached to at least a portion of a surface of the platelet-shaped substrate, wherein the pigment particles of the pigment particle layer are discontinuously positioned on the surface of the platelet-shaped substrate in an island manner.

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.

Disclosed are composite particles which including alumina particles and an inorganic coating disposed on a surface of the alumina particles. The alumina particles contain molybdenum (Mo), and the inorganic coating includes a composite metal oxide.

The present invention relates to a pigment composition containing plate-shaped aluminum having excellent explosion stability and a method for preparing the same. More specifically, the present invention relates to a pigment composition and a method for preparing the same, wherein the pigment composition contains thin aluminum flakes coated with a plurality of metal oxide layers and TiO2 coated with a metal oxide layer, thereby ensuring explosion stability. The pigment composition of the present invention can ensure stability against the thermite reaction caused by aluminum and metal oxides and prevent a decrease in chromaticity and hiding power by mixing TiO2 coated with a metal oxide layer having an apparent specific gravity lower than that of other plate-shaped inorganic particles.

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.

The present invention relates to a sheet-like PVD aluminum pigment having a protective envelope, where the protective envelope comprises a) a continuous, coated silicon oxide-containing coating (a), where the silicon oxide-containing coating comprises at least 60% by weight of silicon oxide, based on the total weight of the silicon oxide-containing coating, and b) a layer (b) of a metal oxide, where the metal oxide layer (b) comprises at least 60% by weight of silicon oxide, based on the total weight of the silicon oxide-containing coating. Wherein the metal oxide is selected from the group consisting of molybdenum oxide, molybdenum hydroxide, hydrated molybdenum oxide, tungsten oxide, tungsten hydroxide, hydrated tungsten oxide, and mixtures thereof, and c) optionally, an organo-chemically modified outer layer. The invention also relates to a method for producing said sheet-like metallic pigment and to the use thereof.

The present invention relates to a method for producing metallic effect pigments based on aluminum platelets provided with a metal oxide coating, comprising the following steps: (a) feeding the aluminum platelets into an organic solvent to form a corresponding dispersion and adding at least one metal oxide precursor compound to dissolve the metal oxide precursor compound, and (b) decomposing the metal oxide precursor compound in the organic solvent to form a metal oxide coating on the aluminum platelets. Furthermore, the present invention relates to metallic effect pigments obtainable by the method according to the invention and to the use of the metallic effect pigments according to the invention.

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.

Disclosed are an effect pigment that realizes substantially the same color at different view angles and a method for preparing the same. The effect includes a platelet-shaped substrate; and a pigment particle layer composed of pigment particles attached to at least a portion of a surface of the platelet-shaped substrate, wherein the pigment particles of the pigment particle layer are discontinuously positioned on the surface of the platelet-shaped substrate in an island manner.

The invention relates to a method for preparing colored materials by heterogeneous germination 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 germination, comprises in particular the mixing at room temperature of 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.

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.

Metal effect pigments, having a surface treatment comprising A) phosphoric acid (H3PO4), B) tetraethyl orthosilicate (TEOS) and C) at least one organic coupling agent to the metal effect pigments, exhibiting excellent humidity resistance performance without any influence on the chroma, luster and color of base metal effect pigments, a process for producing same and their use.

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 relates to interference pigments comprising a layer of a zinc sulfide-based material. The pigments advantageously comprise a low refractive index core and at least one high refractive index layer comprising zinc sulfide. The invention also proposes a method for synthesizing these pigments by heterogeneous precipitation of zinc sulfide on a pulverulent support, the precipitation being obtained by titration of a sodium sulfide solution with a fixed pH, on the addition of a saline solution of zinc in a reaction medium containing a dispersion of the pulverulent support, at moderate temperature. The invention also relates to cosmetic compositions comprising these interference pigments and devoid of titanium dioxide, the titanium dioxide being generally introduced as a filler or by provision of a cosmetic ingredient containing it.

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.

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 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.

Temperature-stable effect pigments based on multicoated flake-form substrates, and the use thereof in paints, coatings, printing inks, plastics and in particular in glazes, enamels, ceramic or glass-like materials.