Carbon nanotube aggregate, carbon nanotube aggregate having a three-dimensional shape, carbon nanotube molded product using the carbon nanotube aggregate, composition, and carbon nanotube dispersion liquid
US-2018016146-A1 · Jan 18, 2018 · US
Carbon nanotube wire
US11780731B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11780731-B2 |
| Application number | US-202017037306-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 29, 2020 |
| Priority date | Mar 30, 2018 |
| Publication date | Oct 10, 2023 |
| Grant date | Oct 10, 2023 |
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- Title
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Abstract
Official abstract text for this publication.
The present disclosure relates to a carbon nanotube wire includes a carbon nanotube aggregate constituted of a plurality of carbon nanotubes. In the plurality of carbon nanotubes, a mean length of the plurality of carbon nanotubes is not larger than 150 μm, a CV value of the mean length is not smaller than 0.40, a mean diameter of the plurality of carbon nanotubes is smaller than 4 nm, a CV value of the mean diameter is not smaller than 0.18, and a proportion of carbon nanotubes with lengths not smaller than 3 μm is not less than 60%.
First claim
Opening claim text (preview).
What is claimed is: 1. A carbon nanotube wire comprising a carbon nanotube aggregate constituted of a plurality of carbon nanotubes, wherein in the plurality of carbon nanotubes, a mean length of the plurality of carbon nanotubes is not larger than 150 μm, a coefficient of variation (CV) value of the mean length is not smaller than 0.40, a mean diameter of the plurality of carbon nanotubes is smaller than 4 nm, a CV value of the mean diameter is not smaller than 0.3 and not larger than 0.88, and a proportion of carbon nanotubes with lengths not smaller than 3 μm is not less than 60%. 2. The carbon nanotube wire according to claim 1 , wherein the mean length of the plurality of carbon nanotubes is not smaller than 1 μm. 3. The carbon nanotube wire according to claim 1 , wherein a density in the carbon nanotube wire is not lower than 0.5 g/cm 3 . 4. The carbon nanotube wire according to claim 1 , wherein in the plurality of carbon nanotubes, the CV value of the mean length is not larger than 1.2, the mean diameter is not smaller than 1 nm, the CV value of the mean diameter is not larger than 0.80, and the proportion of carbon nanotubes with lengths not smaller than 3 μm is not more than 95%. 5. The carbon nanotube wire according to claim 1 , wherein in the plurality of carbon nanotubes, the CV value of the mean length is not smaller than 0.70, the mean diameter is not smaller than 1.2 nm, the CV value of the mean diameter is not smaller than 0.50 and not larger than 0.80, and the proportion of carbon nanotubes with lengths not smaller than 3 μm is not less than 70% and not more than 95%. 6. The carbon nanotube wire according to claim 1 , wherein the carbon nanotube wire is a single wire.
Assignees
Inventors
Classifications
- C01B32/158Primary
Carbon nanotubes · CPC title
mainly consisting of carbon-silicon compounds, carbon or silicon · CPC title
Nanotechnology for materials or surface science, e.g. nanocomposites · CPC title
Length · CPC title
Diameter · CPC title
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Frequently asked questions
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- What does patent US11780731B2 cover?
- The present disclosure relates to a carbon nanotube wire includes a carbon nanotube aggregate constituted of a plurality of carbon nanotubes. In the plurality of carbon nanotubes, a mean length of the plurality of carbon nanotubes is not larger than 150 μm, a CV value of the mean length is not smaller than 0.40, a mean diameter of the plurality of carbon nanotubes is smaller than 4 nm, a CV val…
- Who is the assignee on this patent?
- Furukawa Electric Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C01B32/158. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 10 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 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).