Heat-insulation sheet, electronic device using same, and method for producing heat-insulation sheet
US-2017266920-A1 · Sep 21, 2017 · US
Thermal insulation sheet and method for producing the same, and electronic device and battery unit
US11015286B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11015286-B2 |
| Application number | US-201816206809-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 30, 2018 |
| Priority date | Nov 30, 2017 |
| Publication date | May 25, 2021 |
| Grant date | May 25, 2021 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
Used is a method for producing a thermal insulation sheet, including: composite-forming including impregnating a nonwoven fabric with a basic sol prepared by adding a carbonate ester to a water glass composition to form a hydrogel-nonwoven fabric composite; surface-modifying including mixing the composite with a silylating agent for surface modification; and drying including removing liquid contained in the composite through drying at a temperature lower than the critical temperature of the liquid under a pressure lower than the critical pressure of the liquid. Used is a thermal insulation sheet including an aerogel and a nonwoven fabric, where the thermal insulation sheet exhibits a compressibility of 40% or lower at 0.30 to 5.0 MPa.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for producing a thermal insulation sheet, comprising: composite-forming including impregnating a nonwoven fabric with a basic sol prepared by adding a carbonate ester to a water glass composition to form a hydrogel-nonwoven fabric composite; surface-modifying including mixing the composite with a silylating agent for surface modification; and drying including removing liquid contained in the composite through drying at a temperature lower than a critical temperature of the liquid under a pressure lower than a critical pressure of the liquid, wherein the thermal insulation sheet exhibits a compressibility of 40% or lower at 0.30 to 5.0 MPa. 2. The method for producing a thermal insulation sheet according to claim 1 , wherein a loading of the carbonate ester in the composite-forming is 1 to 10 parts by weight based on 100 parts by weight of the water glass composition. 3. The method for producing a thermal insulation sheet according to claim 1 , wherein the basic sol has a pH of 10 or higher. 4. The method for producing a thermal insulation sheet according to claim 1 , wherein a SiO 2 concentration of the water glass composition in the composite-forming is 14 wt % or higher and 22 wt % or lower. 5. The method for producing a thermal insulation sheet according to claim 1 , wherein the nonwoven fabric is formed of an inorganic fiber. 6. The method for producing a thermal insulation sheet according to claim 1 , wherein the carbonate ester is water-soluble and readily hydrolyzed to form a carbonate ion and a diol under basic conditions at a pH of 10 or higher.
Assignees
Inventors
Classifications
Energy storage using batteries · CPC title
Means for temperature control structurally associated with the cells · CPC title
Treating compositions in the form of solgel or aerogel · CPC title
Organic carbonates · CPC title
Cyclic esters, e.g. lactones · CPC title
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Frequently asked questions
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- What does patent US11015286B2 cover?
- Used is a method for producing a thermal insulation sheet, including: composite-forming including impregnating a nonwoven fabric with a basic sol prepared by adding a carbonate ester to a water glass composition to form a hydrogel-nonwoven fabric composite; surface-modifying including mixing the composite with a silylating agent for surface modification; and drying including removing liquid con…
- Who is the assignee on this patent?
- Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification D06M11/79. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue May 25 2021 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).