Method for manufacturing a special effect pigment using an emulsion
US-2023250293-A1 · Aug 10, 2023 · US
Pigment including a metal core, organic layer, and an inorganic layer
US12486404B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12486404-B2 |
| Application number | US-202418415154-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 17, 2024 |
| Priority date | Mar 30, 2022 |
| Publication date | Dec 2, 2025 |
| Grant date | Dec 2, 2025 |
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- Title
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Abstract
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A pigment, including a flake including a metal core having a first surface and a second surface, a first dielectric layer interfacing with a first surface of the metal core, and a second dielectric layer interfacing with a second surface of the metal core; a first inorganic layer encapsulating the flake; and an organic layer encapsulating the first organic layer is disclosed. A colorant composition including the pigment is also disclosed. A method of making the pigment, and a method of making a colorant composition are also disclosed.
First claim
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What is claimed is: 1 . A pigment, comprising: a flake including a metal core having a first surface and a second surface, a first dielectric layer interfacing with a first surface of the metal core, and a second dielectric layer interfacing with a second surface of the metal core; a first organic layer encapsulating the flake; and an inorganic layer encapsulating the first organic layer. 2 . The pigment of claim 1 , wherein the first organic layer interfaces with the flake. 3 . The pigment of claim 1 , wherein the inorganic layer is a layer of silica. 4 . The pigment of claim 1 , wherein the first organic layer is a multilayer including a first organic sublayer interfacing with a second organic sublayer. 5 . The pigment of claim 1 , wherein the inorganic layer interfaces with the first organic layer. 6 . The pigment of claim 1 , wherein the first organic layer is a multilayer including alternating layers of a first organic sublayer interfacing with a second organic sublayer. 7 . The pigment of claim 1 , wherein the first organic layer includes one or more polyelectrolytes. 8 . The pigment of claim 7 , wherein the polyelectrolyte is chosen from polyallylamine hydrochloride, polysodium 4-styrenesulfonate, and combinations thereof. 9 . The pigment of claim 1 , wherein the first organic layer includes a colorant. 10 . The pigment of claim 1 , wherein the first organic layer is multiple alternating layers of charged material. 11 . The pigment of claim 1 , further comprising a second organic layer encapsulating the flake. 12 . The pigment of claim 11 , wherein the second organic layer interfaces with the inorganic layer. 13 . The pigment of claim 11 , wherein the inorganic layer includes an inorganic material chosen from oxides, nitrides, carbides, sulfides, compounds thereof, and combinations thereof. 14 . A method of making a pigment, comprising: providing a flake; applying a first organic layer to encapsulate the flake; and applying an inorganic layer to encapsulate the flake and the first organic layer. 15 . The method of claim 14 , further comprising, after applying the inorganic layer, applying a second organic layer to encapsulate the flake, the first organic layer, and the inorganic layer. 16 . The method of claim 14 , wherein the inorganic layer has a negative or positive charge and is attracted to a positive or negative charge of the first organic layer. 17 . The method of claim 14 , wherein the pigment includes multiple interfaces to reduce propagation of cracks and increase the diffusion path of corrosives molecules. 18 . The method of claim 14 , wherein the inorganic layer is applied using a sol-gel process. 19 . The method of claim 14 , wherein the organic layer is applied using a layer-by-layer process.
Assignees
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Classifications
Treatment with organosilicon compounds {(C09C3/006 takes precedence)} · CPC title
Organosilicon materials, e.g. silanes, silicones · CPC title
the core comprising at least one inorganic oxide, e.g. Al2O3, TiO2 or SiO2 · CPC title
Inorganic particles, e.g. oxides, nitrides or carbides · CPC title
Coating · CPC title
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- What does patent US12486404B2 cover?
- A pigment, including a flake including a metal core having a first surface and a second surface, a first dielectric layer interfacing with a first surface of the metal core, and a second dielectric layer interfacing with a second surface of the metal core; a first inorganic layer encapsulating the flake; and an organic layer encapsulating the first organic layer is disclosed. A colorant composi…
- Who is the assignee on this patent?
- Viavi Solutions Inc
- What technology area does this patent fall under?
- Primary CPC classification C09C1/0066. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 02 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).