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  • 专利标题:   Pitch-based ultrafine carbon fiber comprises specific nitrogen atom content measured by X-ray photoelectron spectroscopy, and has specified average fiber diameter and true density.
  • 专利号:   WO2021177198-A1, JP6948490-B1, TW202140877-A, JP2021534188-X, CN115135822-A, KR2022139870-A, EP4116471-A1, US2023086954-A1
  • 发明人:   YAGI K, KOMURA S, HIRAKAWA R
  • 专利权人:   TEIJIN LTD, TEIJIN LTD, TEIJIN LTD, TEIJIN LTD
  • 国际专利分类:   D01F009/145, C01B032/05, C09D017/00, D01F009/15, D01F009/155, B82Y030/00
  • 专利详细信息:   WO2021177198-A1 10 Sep 2021 202178 Pages: 25 Japanese
  • 申请详细信息:   WO2021177198-A1 WOJP007591 01 Mar 2021
  • 优先权号:   JP035913, KR726614, CN80017797

▎ 摘　　要

NOVELTY - Pitch-based ultrafine carbon fiber comprises less than or equal to 1 atomic% nitrogen atom measured by X-ray photoelectron spectroscopy (XPS), and has an average fiber diameter of 100-900 nm and a true density of 1.95-2.2 g/cm3. USE - Pitch-based ultrafine carbon fiber. ADVANTAGE - The fiber has excellent dispersibility in an aqueous solvent and electrical conductivity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a pitch-based ultrafine carbon fiber dispersion comprising the pitch-based ultrafine carbon fibers and water.