Boron nitride powder, method for producing same, and heat-dissipating member produced using same
US-2020247672-A1 · Aug 6, 2020 · US
Sheet containing boron nitride particles each having hollow part
US12570836B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12570836-B2 |
| Application number | US-202118041851-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 19, 2021 |
| Priority date | Aug 20, 2020 |
| Publication date | Mar 10, 2026 |
| Grant date | Mar 10, 2026 |
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- Title
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Abstract
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A sheet containing a resin and boron nitride particles each having a hollow part, in which the resin is filled into the hollow part of the boron nitride particles.
First claim
Opening claim text (preview).
The invention claimed is: 1 . A sheet comprising: a resin; and boron nitride particles each having a hollow part, wherein the resin is filled into the hollow part of the boron nitride particles, wherein the boron nitride particles have a shell part, wherein the boron nitride particles have an elongated shape, wherein the boron nitride particles comprise a boron nitride particle having an aspect ratio of 2.0 or more, wherein the boron nitride particle having an aspect ratio of 2.0 or more has a maximum length of 150 μm or longer, and a thickness of the shell part is 1 μm or more. 2 . The sheet according to claim 1 , wherein the boron nitride particles comprise a boron nitride particle having an area proportion of the hollow part in the boron nitride particle of 40% or more in a cross section of the sheet. 3 . The sheet according to claim 1 , wherein the boron nitride particles comprise a boron nitride particle having an aspect ratio of 3.0 or more. 4 . The sheet according to claim 3 , wherein the boron nitride particle having an aspect ratio of 3.0 or more has a maximum length of 150 μm or longer.
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Classifications
Additives defined by their aspect ratio · CPC title
Additives being defined by their length · CPC title
Binary compounds of nitrogen with boron · CPC title
Characterised by the use of unspecified polymers · CPC title
Manufacture of films or sheets · CPC title
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Frequently asked questions
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- What does patent US12570836B2 cover?
- A sheet containing a resin and boron nitride particles each having a hollow part, in which the resin is filled into the hollow part of the boron nitride particles.
- Who is the assignee on this patent?
- Denka Company Ltd
- What technology area does this patent fall under?
- Primary CPC classification C08K7/24. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 10 2026 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).