Title:
POLYIMIDE FILM FOR GRAPHITE SHEET, GRAPHITE SHEET, AND PRODUCTION METHODS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/162643
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a polyimide film capable of providing a high-density graphite sheet with good productivity. This problem is solved by a polyimide film for a graphite sheet, said polyimide film having a dianhydride component and a diamine component as starting materials. The polyimide film for a graphite sheet has a total BTDA, ODPA, and BAPP content of 1-50 mol% with respect to a total of 200 mol% of the dianhydride component and the diamine component, and contains a prescribed amount of an organophosphorous compound.
Inventors:
KOBAYASHI MOTOAKI (JP)
INABA KEISUKE (JP)
MATSUTANI TERUO (JP)
INABA KEISUKE (JP)
MATSUTANI TERUO (JP)
Application Number:
PCT/JP2023/003690
Publication Date:
August 31, 2023
Filing Date:
February 06, 2023
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
C08L79/08; C01B32/205; C08G73/10; C08K5/49
Domestic Patent References:
| WO2021040127A1 | 2021-03-04 | |||
| WO2021095976A1 | 2021-05-20 | |||
| WO2022009972A1 | 2022-01-13 | |||
| WO2022009971A1 | 2022-01-13 | |||
| WO2023008033A1 | 2023-02-02 |
Foreign References:
| CN105368048A | 2016-03-02 | |||
| JP2014040003A | 2014-03-06 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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