Thermally Conductive Boron Nitride Films and Multilayered Composites Containing Them
US-2022274887-A1 · Sep 1, 2022 · US
Cellular sandwich panel containing boron nitride powder and manufacturing method for said panel
US12515437B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12515437-B2 |
| Application number | US-202318190716-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 27, 2023 |
| Priority date | Mar 30, 2022 |
| Publication date | Jan 6, 2026 |
| Grant date | Jan 6, 2026 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A cellular sandwich panel containing boron nitride powder and a manufacturing method. The sandwich panel has a first skin and a second skin between which is positioned a cellular core with cells opening out on both sides respectively in the first skin and the second skin, the cells being separated from one another by side walls. The side walls of the core comprise an aramid-, carbon- or glass-fibre-based reinforcement, a polymeric reinforcing resin and boron nitride powder.
First claim
Opening claim text (preview).
The invention claimed is: 1 . An aircraft sandwich panel comprising: a first skin, a second skin, and a cellular core between the first skin and the second skin, the cellular core comprising cells having open sides at the first skin and the second skin, respectively, the cells separated from one another by side walls, wherein the side walls of the cellular core comprise an aramid-, carbon- or glass-fibre-based reinforcement, a polymeric reinforcing resin, and a boron nitride powder, wherein the aircraft sandwich panel further comprises an adhesive film between the first skin and the core and between the second skin and the core, wherein the adhesive films comprise boron nitride powder. 2 . The aircraft sandwich panel according to claim 1 , wherein the reinforcing resin comprises boron nitride powder. 3 . The aircraft sandwich panel according to claim 1 , wherein a bonding resin used to bond layers of the aramid-, carbon- or glass-fibre-based reinforcement to each other comprises boron nitride powder. 4 . The aircraft sandwich panel according to claim 1 , wherein at least some of the cells are at least partially filled with a filler material comprising boron nitride powder. 5 . The aircraft sandwich panel according to claim 1 , wherein the boron nitride powder is a hexagonal boron nitride powder. 6 . The aircraft sandwich panel according to claim 1 , wherein the aramid-, carbon- or glass-fibre-based reinforcement comprises a sheet with meta-aramid fibres. 7 . The aircraft sandwich panel according to claim 1 , wherein one skin is perforated. 8 . A propulsion unit comprising: a nacelle having an inner fixed structure, wherein the inner fixed structure comprises the aircraft sandwich panel according to claim 1 . 9 . An aircraft comprising a portion provided with the aircraft sandwich panel according to claim 1 .
Assignees
Inventors
Classifications
Aircraft · CPC title
Ceramic · CPC title
Aromatic polyamide fibres · CPC title
Fibrous or filamentary layer · CPC title
Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA · CPC title
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- What does patent US12515437B2 cover?
- A cellular sandwich panel containing boron nitride powder and a manufacturing method. The sandwich panel has a first skin and a second skin between which is positioned a cellular core with cells opening out on both sides respectively in the first skin and the second skin, the cells being separated from one another by side walls. The side walls of the core comprise an aramid-, carbon- or glass-f…
- Who is the assignee on this patent?
- Airbus Operations Sas
- What technology area does this patent fall under?
- Primary CPC classification B32B3/12. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jan 06 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).