Aerogel compositions for high temperature applications
US-11261380-B2 · Mar 1, 2022 · US
Aerogel compositions for high temperature applications
US11634641B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11634641-B2 |
| Application number | US-202117184854-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 25, 2021 |
| Priority date | May 25, 2006 |
| Publication date | Apr 25, 2023 |
| Grant date | Apr 25, 2023 |
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- Title
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- Abstract
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Abstract
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Aerogel materials, aerogel composites, and the like may be improved by the addition of opacifiers to reduce the radiative component of heat transfer. Such aerogel materials, aerogel composites, and the like may also be treated to impart or improve hydrophobicity. Such aerogel materials and methods of manufacturing the same are described.
First claim
Opening claim text (preview).
What is claimed is: 1. A method comprising: (a) forming a silica gel mixture comprising silica gel and fillers; (b) combining the silica gel mixture with a reinforcing structure; and (c) drying the combined silica gel mixture to form a silica aerogel composition comprising a dried silica aerogel and the fillers; the fillers comprising (1) an opacifying compound embedded within the silica aerogel composition, (2) a hydrated filler, and (3) hydrophobic materials attached to a surface of the dried silica aerogel. 2. The method of claim 1 , wherein the fillers further comprise at least a smoke suppressing filler. 3. The method of claim 1 , wherein a majority of the fillers are in hydrated form. 4. The method of claim 1 , wherein the fillers are present at a level of 1 to 40 percent by weight of the silica aerogel composition. 5. The method of claim 1 , wherein the fillers are present at a level of 1 to 50 percent by weight of the silica aerogel composition. 6. The method of claim 1 , wherein the fillers are present at a level of 5 to 50 percent by weight of the silica aerogel composition. 7. The method of claim 1 , wherein the silica gel mixture is formed by mixing an amount of a filler with an amount of silica gel in a suitable solvent. 8. The method of claim 1 , wherein the reinforcing structure is fibrous. 9. The method of claim 8 , wherein the fibrous reinforcing structure is in a woven, nonwoven, mat, felt, batting, or a combination thereof. 10. The method of claim 1 , wherein drying comprises drying the combined mixture with a supercritical fluid which comprises carbon dioxide. 11. The method of claim 1 , wherein the silica aerogel composition includes an aerogel in which the fillers are embedded, where the fillers are distinct from the aerogel.
Assignees
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Classifications
Magnesium hydroxide · CPC title
Aluminium-containing silicates {, i.e. silico-aluminates} · CPC title
Aluminium oxide or hydroxide from alkaline earth metal aluminates · CPC title
Preparation of aerogels, e.g. xerogels · CPC title
containing phosphorus · CPC title
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- What does patent US11634641B2 cover?
- Aerogel materials, aerogel composites, and the like may be improved by the addition of opacifiers to reduce the radiative component of heat transfer. Such aerogel materials, aerogel composites, and the like may also be treated to impart or improve hydrophobicity. Such aerogel materials and methods of manufacturing the same are described.
- Who is the assignee on this patent?
- Aspen Aerogels Inc
- What technology area does this patent fall under?
- Primary CPC classification C09K21/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 25 2023 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).