Title:
PITCH-BASED ULTRAFINE CARBON FIBERS AND PITCH-BASED ULTRAFINE CARBON FIBER DISPERSION
Document Type and Number:
WIPO Patent Application WO/2021/177198
Kind Code:
A1
Abstract:
The present invention provides pitch-based ultrafine carbon fibers containing nitrogen atoms, wherein the average fiber diameter is more than 100 nm but not more than 900 nm; the content of the nitrogen atoms as determined by X-ray photoelectron spectroscopy (XPS) is 1.00% by atom or less; and the true density is from 1.95 to 2.20 g/cm3.
Inventors:
YAGI KEISUKE (JP)
KOMURA SHINYA (JP)
HIRAKAWA RYOTA (JP)
KOMURA SHINYA (JP)
HIRAKAWA RYOTA (JP)
Application Number:
PCT/JP2021/007591
Publication Date:
September 10, 2021
Filing Date:
March 01, 2021
Export Citation:
Assignee:
TEIJIN LTD (JP)
International Classes:
D01F9/145; C01B32/05; C09D17/00
Foreign References:
| JP2019094603A | 2019-06-20 | |||
| JP2017210705A | 2017-11-30 | |||
| JP2012507638A | 2012-03-29 | |||
| JPH05302263A | 1993-11-16 | |||
| JP2010024127A | 2010-02-04 | |||
| JP2017137232A | 2017-08-10 |
Other References:
"Japanese Industrial Standards JIS R 7651", 2007, article "Measurement of lattice parameters and crystallite sizes of carbon materials"
See also references of EP 4116471A4
See also references of EP 4116471A4
Attorney, Agent or Firm:
KIMURA, Yoshihiro (JP)
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