Title:
PRODUCTION METHOD FOR GRAPHITE SHEET, AND POLYIMIDE FILM FOR GRAPHITE SHEET
Document Type and Number:
WIPO Patent Application WO/2022/009972
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a graphite sheet having excellent ease of peeling from a lightly adhesive film. This problem is solved by a production method for a graphite sheet having a thermal diffusivity of at least 8.0 cm2/s and interlayer strength of at least 100 gf/inch, the method comprising a step for heat treating, at 2400°C or higher, a polyimide film that contains 0.05 wt% to 0.30 wt% of inorganic particles and 0.055 wt% to 0.097 wt% of a phosphorus-containing non-metal additive.
Inventors:
KOBAYASHI MOTOAKI (JP)
INABA KEISUKE (JP)
OZAKI MASASHI (JP)
MATSUTANI TERUO (JP)
INABA KEISUKE (JP)
OZAKI MASASHI (JP)
MATSUTANI TERUO (JP)
Application Number:
PCT/JP2021/025896
Publication Date:
January 13, 2022
Filing Date:
July 09, 2021
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
C08G73/10; C01B32/205; C08J5/18; C08K3/32; C08K5/49; C08L79/08
Domestic Patent References:
| WO2019187621A1 | 2019-10-03 | |||
| WO2019187620A1 | 2019-10-03 |
Foreign References:
| JP2016017169A | 2016-02-01 | |||
| KR20190103638A | 2019-09-05 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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