Carbon nanotube-sulfur composite comprising carbon nanotube aggregates, and method for preparing same
US-9911975-B2 · Mar 6, 2018 · US
Fibrous carbon nanostructure dispersion liquid
US10995223B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10995223-B2 |
| Application number | US-201616063807-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 21, 2016 |
| Priority date | Dec 28, 2015 |
| Publication date | May 4, 2021 |
| Grant date | May 4, 2021 |
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Abstract
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A fibrous carbon nanostructure dispersion liquid having excellent dispersibility of fibrous carbon nanostructures is provided. A fibrous carbon nanostructure dispersion liquid comprises: fibrous carbon nanostructures with a tap density of 0.024 g/cm 3 or less; and a solvent.
First claim
Opening claim text (preview).
The invention claimed is: 1. A fibrous carbon nanostructure dispersion liquid consisting of: fibrous carbon nanostructures with a tap density of not more than 0.018 g/cm 3 ; and a solvent, wherein a concentration of metal impurities is less than 15×10 10 atoms/cm 3 , wherein a content of a precipitate and an aggregate of the fibrous carbon nanostructures in the fibrous carbon nanostructure dispersion liquid is less than 0.05 mass %, and wherein the precipitate is fibrous carbon structures that precipitate with a centrifugal force of 3000 G or more and the aggregate is black fibrous nanostructures visually recognizable in the dispersion liquid and fibrous carbon structures whose number-based mode diameter measured by a laser diffraction type particle size distribution meter is 1 μm or more. 2. The fibrous carbon nanostructure dispersion liquid according to claim 1 , wherein a concentration of the fibrous carbon nanostructures in 1 L of the solvent is 1 mg/L or more. 3. The fibrous carbon nanostructure dispersion liquid according to claim 1 , wherein a content of particles with a number-based mode diameter of more than 500 nm in the fibrous carbon nanostructure dispersion liquid is less than 0.05 mass %. 4. The fibrous carbon nanostructure dispersion liquid according to claim 3 , wherein a content of particles with a number-based mode diameter of more than 300 nm in the fibrous carbon nanostructure dispersion liquid is less than 0.05 mass %. 5. The fibrous carbon nanostructure dispersion liquid according to claim 1 , being used as a constituent material of a semiconductor device. 6. The fibrous carbon nanostructure dispersion liquid according to claim 1 , wherein the solvent includes water. 7. The fibrous carbon nanostructure dispersion liquid according to claim 1 , wherein the tap density of the fibrous carbon nanostructures is not less than 0.008 g/cm 3 .
Assignees
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Classifications
Mechanical properties · CPC title
- C01B32/174Primary
Derivatisation; Solubilisation; Dispersion in solvents · CPC title
Purity · CPC title
Diameter · CPC title
Carbon nanotubes · CPC title
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Frequently asked questions
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- What does patent US10995223B2 cover?
- A fibrous carbon nanostructure dispersion liquid having excellent dispersibility of fibrous carbon nanostructures is provided. A fibrous carbon nanostructure dispersion liquid comprises: fibrous carbon nanostructures with a tap density of 0.024 g/cm 3 or less; and a solvent.
- Who is the assignee on this patent?
- Zeon Corp
- What technology area does this patent fall under?
- Primary CPC classification C01B32/174. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 04 2021 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).