Method for manufacturing silver nanoparticle-containing ink, and silver nanoparticle-containing ink
US-9422443-B2 · Aug 23, 2016 · US
Method for producing silver nano-particles and silver nano-particles
US9776250B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9776250-B2 |
| Application number | US-201314419613-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 31, 2013 |
| Priority date | Aug 7, 2012 |
| Publication date | Oct 3, 2017 |
| Grant date | Oct 3, 2017 |
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- Title
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Abstract
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The present invention provides a silver nano-particle production method which is safe and simple also in terms of scaled-up industrial-level production, in a so-called thermal decomposition method in which a silver-amine complex compound is thermally decomposed to form silver nano-particles. A method for producing silver nano-particles comprising: mixing an aliphatic hydrocarbon amine and a silver compound in the presence of an alcohol solvent having 3 or more carbon atoms to form a complex compound comprising the silver compound and the amine; and thermally decomposing the complex compound by heating to form silver nano-particles.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for producing silver nano-particles comprising: mixing an aliphatic hydrocarbon amine and a silver compound in the presence of an alcohol solvent having 3 or more carbon atoms to form a complex compound comprising the silver compound and the amine; and thermally decomposing the complex compound by heating to form silver nano-particles, wherein the aliphatic hydrocarbon amine comprises an aliphatic hydrocarbon monoamine (A) comprising an aliphatic hydrocarbon group and one amino group, said aliphatic hydrocarbon group having 6 or more carbon atoms in total, and an aliphatic hydrocarbon monoamine (B) comprising an aliphatic hydrocarbon group and one amino group, said aliphatic hydrocarbon group having 2 or more and 5 or less carbon atoms in total, wherein the aliphatic hydrocarbon monoamine (B) is an alkylmonoamine. 2. The method for producing silver nano-particles according to claim 1 , wherein the silver compound is silver oxalate. 3. The method for producing silver nano-particles according to claim 1 , wherein the aliphatic hydrocarbon amine further comprises an aliphatic hydrocarbon diamine (C) comprising an aliphatic hydrocarbon group and two amino groups, said aliphatic hydrocarbon group having 8 or less carbon atoms in total. 4. The method for producing silver nano-particles according to claim 3 , wherein the aliphatic hydrocarbon diamine (C) is an alkylenediamine in which one of the two amino groups is a primary amino group, and the other is a tertiary amino group. 5. The method for producing silver nano-particles according to claim 1 , wherein the aliphatic hydrocarbon monoamine (A) is an alkylmonoamine having 6 or more and 12 or less carbon atoms. 6. The method for producing silver nano-particles according to claim 1 , wherein the alcohol solvent is selected from the group consisting of butanols and hexanols. 7. The method for producing silver nano-particles according to claim 1 , wherein the alcohol solvent is used in an amount of 120 parts by weight or more per 100 parts by weight of the silver compound. 8. The method for producing silver nano-particles according to claim 1 , wherein the aliphatic hydrocarbon amine is used in a total amount of 1 to 50 moles per 1 mole of silver atoms in the silver compound.
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Classifications
Apparatus or processes specially adapted for manufacturing conductors or cables · CPC title
Non-insulated conductors or conductive bodies characterised by their form · CPC title
mainly consisting of metals or alloys · CPC title
Alloys based on silver · CPC title
Particle size between 1 and 100 nm · CPC title
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Frequently asked questions
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- What does patent US9776250B2 cover?
- The present invention provides a silver nano-particle production method which is safe and simple also in terms of scaled-up industrial-level production, in a so-called thermal decomposition method in which a silver-amine complex compound is thermally decomposed to form silver nano-particles. A method for producing silver nano-particles comprising: mixing an aliphatic hydrocarbon amine and a sil…
- Who is the assignee on this patent?
- Daicel Corp
- What technology area does this patent fall under?
- Primary CPC classification B22F9/30. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Oct 03 2017 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).