Title:
グラファイトフィルムの製造方法
Document Type and Number:
Japanese Patent JP6704463
Kind Code:
B2
Abstract:
A method of producing a graphite film has an excellent appearance and excellent thermal diffusivity. A graphite film production method includes the steps of: preparing a polyimide film having a heating loss rate X of 0.13% to 10%, which heating loss rate X is represented by: heating loss rate X=(b−a)/a . . . Formula (1); and graphitizing the polyimide film by subjecting the polyimide film to a heat treatment. Where (i) a represents a mass of the polyimide film after the polyimide film is heated at 400° C. for 15 minutes and (ii) b represents a mass of the polyimide film after the polyimide film is heated at 150° C. for 15 minutes.
Inventors:
Mikiaki Kobayashi
Masahiro Kojima
Yasushi Nishikawa
Masahiro Kojima
Yasushi Nishikawa
Application Number:
JP2018545050A
Publication Date:
June 03, 2020
Filing Date:
October 12, 2017
Export Citation:
Assignee:
Kaneka Corporation
International Classes:
C01B32/205
Domestic Patent References:
| JP2013249480A | ||||
| JP2014156387A | ||||
| JP2007196670A |
Foreign References:
| WO2013080705A1 | ||||
| WO2005023713A1 |
Attorney, Agent or Firm:
Harakenzo world patent & trademark