Alpha-alumina flakes
US-2022251403-A1 · Aug 11, 2022 · US
Composite particle and method of producing composite particle
US12503606B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12503606-B2 |
| Application number | US-201917766298-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 9, 2019 |
| Priority date | Oct 9, 2019 |
| Publication date | Dec 23, 2025 |
| Grant date | Dec 23, 2025 |
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- Title
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Abstract
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The present invention provides an alumina particle containing molybdenum (Mo) and an inorganic coating part provided on the surface of the alumina particle.
First claim
Opening claim text (preview).
The invention claimed is: 1 . A composite particle comprising an alumina particle comprising molybdenum (Mo) and an inorganic coating part provided on a surface of the alumina particle, wherein the alumina particle comprises mullite in a surface layer of the alumina particle; wherein the alumina particle has a thickness is 0.01 μm or more and 5 μm or less; wherein the alumina particle has a particle size is 0.1 μm or more and 500 μm or less; wherein the alumina particle has an aspect ratio of 2 or more and 500 or less; wherein a ratio of the height A of the peak of mullite to the height B on the (104) plane of α-alumina (R) is 0.02 or more; wherein the inorganic coating part is made of an oxide or metal having a particle form, and wherein a particle size of the oxide or metal having a particle form is 1 nm or more and 500 nm or less. 2 . The composite particle according to claim 1 , wherein the inorganic coating part is made of an oxide. 3 . The composite particle according to claim 2 , wherein the oxide includes one or more selected from the group consisting of titanium oxide, iron oxide and silica. 4 . The composite particle according to claim 1 , wherein the inorganic coating part is made of a metal. 5 . The composite particle according to claim 4 , wherein the metal include one or more selected from the group consisting of silver, nickel, copper, gold, and platinum. 6 . The composite particle according to claim 1 , wherein the alumina particle further comprises one or more selected from the group consisting of silicon and germanium. 7 . The composite particle according to claim 1 , wherein the composite particle has either a plate-like shape or a polyhedral shape. 8 . The composite particle according to claim 2 , wherein the alumina particle further comprises one or more selected from the group consisting of silicon and germanium. 9 . The composite particle according to claim 8 , wherein the alumina particle comprises mullite in a surface layer of the alumina particle. 10 . The composite particle according to claim 4 , wherein the alumina particle further comprises one or more selected from the group consisting of silicon and germanium. 11 . The composite particle according to claim 10 , wherein the alumina particle comprises mullite in a surface layer of the alumina particle. 12 . The composite particle according to claim 2 , wherein the composite particle has either a plate-like shape or a polyhedral shape. 13 . The composite particle according to claim 4 , wherein the composite particle has either a plate-like shape or a polyhedral shape.
Assignees
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Classifications
Coating · CPC title
Drying, calcination · CPC title
Combinations of treatments provided for in groups C09C3/04 - C09C3/12 · CPC title
Flushing · CPC title
extending in three dimensions · CPC title
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Frequently asked questions
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- What does patent US12503606B2 cover?
- The present invention provides an alumina particle containing molybdenum (Mo) and an inorganic coating part provided on the surface of the alumina particle.
- Who is the assignee on this patent?
- Dainippon Ink & Chemicals
- What technology area does this patent fall under?
- Primary CPC classification C09C1/407. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 23 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 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).