Carbon nanotube fiber having improved physical properties and method for manufacturing same
US12151939B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Jul 28, 2021 |
| Grant date | Nov 26, 2024 |
| Priority date | — |
| Expiry date | Feb 5, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/32
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present disclosure relates to a carbon nanotube fiber having improved physical properties and a method for manufacturing the same. The method according to the present disclosure comprises the steps of: spinning carbon nanotubes with a purity of 90% by weight or more to obtain a first carbon nanotube fiber; and heat-treating the first carbon nanotube fiber at 500 to 3,000° C. under an inert gas atmosphere to obtain a second carbon nanotube fiber, wherein the second carbon nanotube fiber has a density of 1.0 to 2.5 g/cm3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.