Carbon fibrous matter, production device of carbon fibrous matter, production method of carbon fibrous matter and deposit prevention device for carbon fibrous matter
US6878360B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2000 |
| Grant date | Apr 12, 2005 |
| Priority date | — |
| Expiry date | Sep 1, 2020 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F9/127
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is an apparatus for production of vapor-phase growth carbon fibers. The apparatus can continuously produce these carbon fibers for a long time without blocking a furnace of tubular reactor of the apparatus. Also disclosed is a process for production of carbon fibers by means of the apparatus, a device for preventing deposition of carbon fibers on an inside of a furnace of tubular reactor, and vapor-phase growth carbon fibers produced in the apparatus.The vapor-phase growth carbon fibers include carbon nanofibers and/or carbon nanotubes. The apparatus includes a furnace of tubular reactor, at an end of which a feedstock-supplying nozzle is provided, and a discharge pipe inserted in the furnace of tubular reactor, the top end of which faces the opening of the nozzle and the bottom end discharges the carbon fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.