Heat insulation sheet and method of producing the same
US-2016060808-A1 · Mar 3, 2016 · US
Thermal insulation sheet and manufacturing method therefor
US11788227B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11788227-B2 |
| Application number | US-202117146276-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 11, 2021 |
| Priority date | Mar 18, 2016 |
| Publication date | Oct 17, 2023 |
| Grant date | Oct 17, 2023 |
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- Title
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Abstract
Official abstract text for this publication.
A thermal insulation sheet is used that includes a fiber, a silica aerogel contained in the fiber, and a fibrous cavity. A method for manufacturing a thermal insulation sheet is used that includes: an impregnation step of impregnating a silica aerosol in a nonwoven fabric substrate containing a fiber that is insoluble in an acidic solution, and a fiber that is soluble in the acidic solution; a gelling step of gelling the silica aerosol; a hydrophobizing step of hydrophobizing the gel; and a drying step of drying the gel. The fiber that is soluble in the acidic solution is dissolved in the hydrophobizing step.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for manufacturing a thermal insulation sheet, the method comprising: an impregnation step of impregnating a silica aerosol solution in a nonwoven fabric substrate containing a first fiber that is insoluble in an acidic solution, and a second fiber that is soluble in the acidic solution; a gelling step of gelling the silica aerosol solution; a hydrophobizing step of hydrophobizing the gel; and a drying step of drying the gel, the second fiber being dissolved in the hydrophobizing step. 2. The method according to claim 1 , wherein the second fiber is at least one of nylon, rayon, cupra, acetate, vinylon, and cotton. 3. The method according to claim 1 , wherein the second fiber has a diameter or 0.2 mm or less, and a length that is at least twice as long as the diameter. 4. The method according to claim 1 , wherein the second fiber has a diameter of 0.01 mm or more.
Assignees
Inventors
Classifications
- D06M11/07Primary
with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof · CPC title
performed by dipping · CPC title
Curing or cross-linking the coating · CPC title
Preparation of silica xerogels · CPC title
Reinforcing macromolecular compounds with loose or coherent fibrous material · CPC title
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Frequently asked questions
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- What does patent US11788227B2 cover?
- A thermal insulation sheet is used that includes a fiber, a silica aerogel contained in the fiber, and a fibrous cavity. A method for manufacturing a thermal insulation sheet is used that includes: an impregnation step of impregnating a silica aerosol in a nonwoven fabric substrate containing a fiber that is insoluble in an acidic solution, and a fiber that is soluble in the acidic solution; a …
- Who is the assignee on this patent?
- Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification D06M11/07. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue Oct 17 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).