Carbon fibrous matter, production device of carbon fibrous...

Details Carbon fibrous matter, production device of carbon fibrous... Carbon fibrous matter, production device of carbon fibrous...

2005-04-12

2005-04-12

Silverman, Stanley S. (Department: 1754)

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

C423S447100, C422S150000, C422S152000, C422S158000, C239S418000, C239S421000

Reexamination Certificate

active

06878360

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.

REFERENCES:
patent: 4572813 (1986-02-01), Arakawa
patent: 4816289 (1989-03-01), Komatsu et al.
patent: 5024818 (1991-06-01), Tibbetts et al.
patent: 5102647 (1992-04-01), Yamada et al.
patent: 61108723 (1986-05-01), None
patent: WO 8603455 (1986-06-01), None

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