Stretchable conductor sheet, stretchable conductor sheet having adhesiveness, and method for forming electrical wiring comprising stretchable conductor on fabric
US-2020291273-A1 · Sep 17, 2020 · US
Stretchable conductor sheet and paste for forming stretchable conductor sheet
US11427689B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11427689-B2 |
| Application number | US-201716082382-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 8, 2017 |
| Priority date | Mar 9, 2016 |
| Publication date | Aug 30, 2022 |
| Grant date | Aug 30, 2022 |
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- Title
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Abstract
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A first object of the present invention is to provide a stretchable conductor sheet that exhibits isotropic conductivity when stretched in a predetermined direction or in a direction perpendicular to the predetermined direction, and a paste for forming a stretchable conductor sheet, which is used for the stretchable conductor sheet. A second object of the present invention is to provide a stretchable conductor sheet having a small change in specific resistance even when repeatedly twisted, and a paste for forming a stretchable conductor sheet, which is used for the stretchable conductor sheet. A third object of the present invention is to provide a stretchable conductor sheet having a small change in specific resistance even when repeatedly washed, and a paste for forming a stretchable conductor sheet, which is used for the stretchable conductor sheet. The first object of the present invention can accomplish a stretchable conductor sheet having a thickness of 3 to 800 μm, the stretchable conductor sheet comprising at least conductive particles, inorganic particles surface-treated with a hydroxide and/or an oxide of one or both of Al and Si, and a flexible resin having a tensile elastic modulus of 1 MPa or more and 1000 MPa or less, wherein in each of two orthogonal directions, a specific resistance change ratio of the sheet at a time of elongation by 40% with respect to an original length is less than ±10% in an elongation direction.
First claim
Opening claim text (preview).
The invention claimed is: 1. A stretchable conductor sheet having a thickness of 3 to 800 μm, the stretchable conductor sheet comprising at least conductive particles, inorganic particles surface-treated with a hydroxide and/or an oxide of one or both of Al and Si, and a flexible resin having a tensile elastic modulus of 1 MPa or more and 1000 MPa or less, wherein the inorganic particles contain titanium oxide, and in each of two orthogonal directions, a specific resistance change ratio of the sheet at a time of elongation by 40% with respect to an original length is less than ±10% in an elongation direction. 2. The stretchable conductor sheet according to claim 1 , wherein the inorganic particles are contained in an amount of 2.0 to 30% by mass based on 100% by mass of a total of the conductive particles and the inorganic particles. 3. The stretchable conductor sheet according to claim 1 , wherein the inorganic particles have an average particle diameter smaller than an average particle diameter of the conductive particles. 4. The stretchable conductor sheet according to claim 1 , wherein the conductive particles have an average particle diameter of 0.5 to 20 μm, and the conductive particles are silver particles.
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Frequently asked questions
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- What does patent US11427689B2 cover?
- A first object of the present invention is to provide a stretchable conductor sheet that exhibits isotropic conductivity when stretched in a predetermined direction or in a direction perpendicular to the predetermined direction, and a paste for forming a stretchable conductor sheet, which is used for the stretchable conductor sheet. A second object of the present invention is to provide a stret…
- Who is the assignee on this patent?
- Toyo Boseki
- What technology area does this patent fall under?
- Primary CPC classification C08J5/18. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 30 2022 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 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).