Highly conductive, printable ink for highly stretchable soft electronics
US-2022025201-A1 · Jan 27, 2022 · US
Conductive metal paste
US11769606B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11769606-B2 |
| Application number | US-201917598995-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 29, 2019 |
| Priority date | Mar 29, 2019 |
| Publication date | Sep 26, 2023 |
| Grant date | Sep 26, 2023 |
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- Title
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- Abstract
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- First independent claim
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Abstract
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The purpose of the present invention is to provide a conductive metal paste having improved conductivity without increasing the amount of a conductive filler to be added. The conductive metal paste contains a metal filler and less than 1 mass % of an ionic liquid, and does not contain carbon nanotubes.
First claim
Opening claim text (preview).
The invention claimed is: 1. A conductive metal paste which contains a metal filler and an ionic liquid at less than 1 wt % and is free of carbon nanotubes, wherein a cation forming the ionic liquid is a nitrogen atom-containing cation represented by the following formula (1-2) or (1-4), or a phosphorus atom-containing cation represented by the following formula (3): wherein R 21 to R 23 are each independently an alkyl group having 1 to 20 carbon atoms, R 8 is an alkyl group having 1 to 20 carbon atoms, R 9 is an alkyl group having 1 to 20 carbon atoms which is different from R 8 or an alkoxyalkyl group represented by —(CH 2 ) k —OR, R is a methyl group or an ethyl group; and k is 1 or 2. 2. The conductive metal paste according to claim 1 , wherein the metal filler is silver. 3. The conductive metal paste according to claim 1 , further comprising a binder. 4. The conductive metal paste according to claim 1 , wherein an anion forming the ionic liquid is a fluorine atom-containing anion, an alkane sulfonate anion, an aromatic sulfonate anion, an alkyl sulfate anion, an alkyl phosphate anion, an alkyl phosphonate anion or a trialkylsilyl alkanesulfonate anion.
Assignees
Inventors
Classifications
- H01B1/22Primary
the conductive material comprising metals or alloys · CPC title
Electrically-conducting paints {(conductive materials H01B1/00)} · CPC title
Phosphorus bound to carbon only · CPC title
Quaternary ammonium compounds · CPC title
Acyclic saturated phosphonium compounds · CPC title
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Frequently asked questions
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- What does patent US11769606B2 cover?
- The purpose of the present invention is to provide a conductive metal paste having improved conductivity without increasing the amount of a conductive filler to be added. The conductive metal paste contains a metal filler and less than 1 mass % of an ionic liquid, and does not contain carbon nanotubes.
- Who is the assignee on this patent?
- Nisshinbo Holdings Inc
- What technology area does this patent fall under?
- Primary CPC classification H01B1/22. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 26 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).