Aerogel compositions for high temperature applications
US-2024360363-A1 · Oct 31, 2024 · US
Aerogel composite, and supporting member and heat insulation material provided with aerogel composite
US11780735B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11780735-B2 |
| Application number | US-202016735918-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 7, 2020 |
| Priority date | Sep 25, 2014 |
| Publication date | Oct 10, 2023 |
| Grant date | Oct 10, 2023 |
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- Title
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Abstract
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A method for producing an aerogel composite includes drying a wet gel generated from a sol comprising a silica particles, and at least one selected from the group consisting of a silicon compound having a hydrolyzable functional group in a molecule, and a hydrolysis product of the silicon compound.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for producing an aerogel composite comprising drying a wet gel generated from a sol comprising amorphous silica particles, and at least one selected from the group consisting of a silicon compound having a hydrolyzable functional group in a molecule, and a hydrolysis product of a silicon compound having a hydrolyzable functional group in a molecule, wherein a content of the amorphous silica particles in the produced aerogel composite is 1 to 25 parts by mass with respect to the total amount of the produced aerogel composite as 100 parts by mass, and wherein the drying is conducted at a temperature less than a critical point of a solvent used for the drying, and at an atmospheric pressure. 2. The method according to claim 1 , wherein the sol further comprises at least one selected from the group consisting of a polysiloxane compound having a reactive group in a molecule and a hydrolysis product of a polysiloxane compound having a reactive group in a molecule. 3. The method according to claim 1 , wherein an average primary particle diameter of the silica particles is 1 to 500 nm. 4. The method according to claim 1 , wherein a shape of the silica particles is spherical. 5. The method according to claim 1 , wherein the amorphous silica particles are at least one selected from the group consisting of a fused silica particles, fumed silica particles, and colloidal silica particles. 6. The method according to claim 1 , wherein a thermal conductivity coefficient of the produced aerogel composite at atmospheric pressure and 25° C. is 0.03 W/m·K or less.
Assignees
Inventors
Classifications
- C01B33/1585Primary
Dehydration into aerogels · CPC title
Layered products comprising a {layer of a} particular substance not covered by groups B32B11/00 - B32B29/00 · CPC title
Purification; Drying; Dehydrating · CPC title
Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof (preparation of aerogels by dehydrating gels C01B33/158; treatment to enhance the pigmenting or filling properties C09C) · CPC title
Polysiloxanes · CPC title
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- What does patent US11780735B2 cover?
- A method for producing an aerogel composite includes drying a wet gel generated from a sol comprising a silica particles, and at least one selected from the group consisting of a silicon compound having a hydrolyzable functional group in a molecule, and a hydrolysis product of the silicon compound.
- Who is the assignee on this patent?
- Hitachi Chemical Co Ltd, Resonac Corp
- What technology area does this patent fall under?
- Primary CPC classification C01B33/1585. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 10 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).