Systems and Methods for Producing Carbon Solids
US-2024417566-A1 · Dec 19, 2024 · US
Insulated ultrafine powder, method for producing same, and high dielectric constant resin composite material
US9315673B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9315673-B2 |
| Application number | US-201013386201-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 9, 2010 |
| Priority date | Jul 28, 2009 |
| Publication date | Apr 19, 2016 |
| Grant date | Apr 19, 2016 |
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- Title
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Abstract
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Provided are an insulated ultrafine powder obtained by adding liquid metal alkoxide to a methanol-containing organic solvent in which a conductive ultrafine powder comprising a carbon material is dispersed and further adding water thereto and a method for producing the same. Also, provided are an insulated ultrafine powder obtained by adding liquid metal alkoxide to a methanol-containing organic solvent in which a conductive ultrafine powder comprising a carbon material is dispersed, further adding a coupling agent having an alkoxide group and then adding water thereto and a method for producing the same. Further, provided is a high dielectric constant resin composite material obtained by blending the insulated ultrafine powder of the present invention with a resin in a volume ratio (insulated ultrafine powder/resin) falling in a range of 5/95 to 50/50.
First claim
Opening claim text (preview).
The invention claimed is: 1. An insulated ultrafine powder obtained by adding liquid metal alkoxide having alkyl groups other than methyl groups to a methanol-containing organic solvent in which a conductive ultrafine powder comprising a carbon material is dispersed, further adding an organic silicon compound or a coupling agent and then adding water thereto, said insulated ultrafine powder having an insulated coating film on a surface of the conductive ultrafine powder, wherein said liquid metal alkoxide is turned into a solid material by alcohol substitution reaction with methanol. 2. The insulated ultrafine powder according to claim 1 , wherein a cross-sectional diameter of the conductive ultrafine powder comprising a carbon material is 1 nm or more and 500 nm or less. 3. The insulated ultrafine powder according to claim 1 , wherein the carbon material constituting the conductive ultrafine powder is a carbon nanofiber, natural graphite, carbon black, a carbon nanotube or artificial graphite. 4. The insulated ultrafine powder according to claim 1 , wherein a constitutional metal element of the liquid metal alkoxide contains at least any one kind of Ti and Zr. 5. The insulated ultrafine powder according to claim 1 , wherein the coupling agent is a silane base coupling agent. 6. The insulated ultrafine powder according to claim 1 , wherein a specific inductive capacity of 10 or more is obtained by blending the insulated ultrafine powder with resin in an amount of 50 vol % or less.
Assignees
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Classifications
Chemistry & Metallurgy · mapped topic
Spheres · CPC title
Electric properties · CPC title
obtained by SEM · CPC title
with conductive additives or conductive layers · CPC title
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- What does patent US9315673B2 cover?
- Provided are an insulated ultrafine powder obtained by adding liquid metal alkoxide to a methanol-containing organic solvent in which a conductive ultrafine powder comprising a carbon material is dispersed and further adding water thereto and a method for producing the same. Also, provided are an insulated ultrafine powder obtained by adding liquid metal alkoxide to a methanol-containing organi…
- Who is the assignee on this patent?
- Matsumoto Takahiro, Tsuruya Hirotaka, Ban Hajime, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification C09C1/56. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 19 2016 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).