• 专利标题:   Milled pitch-based carbon fiber used for forming heat conductive molded article, comprises anisotropic pitch as raw material, where graphene sheet is open when observing fiber end face with transmission electron microscope.
  • 专利号:   JP2021113389-A, JP7155329-B2
  • 发明人:   KISHIMOTO H, ARAI Y, TADOKORO H
  • 专利权人:   NIPPON GRAPHITE FIBRE KK, NIPPON GRAPHITE FIBER CO LTD
  • 国际专利分类:   C08K003/04, C08K007/06, C08L101/00, D01F009/14, D01F009/145
  • 专利详细信息:   JP2021113389-A 05 Aug 2021 D01F-009/14 202171 Pages: 24 Japanese
  • 申请详细信息:   JP2021113389-A JP074646 27 Apr 2021
  • 优先权号:   JP165622, JP074646

▎ 摘  要

NOVELTY - Milled pitch-based carbon fiber comprises anisotropic pitch as a raw material, where the average fiber diameter is 5-15 mu m, the volume-equivalent average fiber length is 300 mu m or less, the fiber cross section has a random structure, and the graphene sheet is open when observing the fiber end face with a transmission electron microscope. USE - The milled pitch-based carbon fiber is used for forming heat conductive molded articles (claimed), such as semiconductor elements, power supply and light source for electronic device. ADVANTAGE - The milled pitch-based carbon fiber has excellent thermal conductivity and less curing inhibition of matrix such as resin, and provides articles with excellent thermal conductivity, density and flexibility. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for heat conductive molded article, which contains the milled pitch-based carbon fiber, and at least one of matrix component chosen from a thermoplastic resin, a thermosetting resin and a rubber component. DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart of milled pitch-based carbon fiber manufacture method. (Drawing includes non-English language text) Spinning process (S1) Infusible process (S2) Carbonization process (S3) Chop treatment process (S4) Graphitization process (S5)