Title:
METHOD FOR MANUFACTURING POLYIMIDE FILM FOR GRAPHITE SHEET AND METHOD FOR MANUFACTURING GRAPHITE SHEET
Document Type and Number:
WIPO Patent Application WO/2022/045728
Kind Code:
A1
Abstract:
Disclosed are: a method for manufacturing a polyimide film for a graphite sheet, the method comprising the steps of preparing a polyamic acid solution, adding a sublimable inorganic filler solution having a zeta potential of +30 mV to +40 mV or -40 mV to -30 mV to the polyamic acid solution to prepare a precursor composition for a polyimide film, and obtaining a polyimide film from the precursor composition; and a method for manufacturing a graphite sheet by using same.
Inventors:
JUNG HYEONG-SEOP (KR)
WON DONG-YOUNG (KR)
WON DONG-YOUNG (KR)
Application Number:
PCT/KR2021/011276
Publication Date:
March 03, 2022
Filing Date:
August 24, 2021
Export Citation:
Assignee:
PI ADVANCED MAT CO LTD (KR)
International Classes:
C08J5/18; C01B32/205; C08G73/10; C08K3/013; C08K3/26; C08K3/30; C08K3/32; H01B1/04
Foreign References:
| KR20190102561A | 2019-09-04 | |||
| JP6386598B2 | 2018-09-05 | |||
| KR20190103638A | 2019-09-05 | |||
| JP4370300B2 | 2009-11-25 | |||
| JP2017537981A | 2017-12-21 |
Attorney, Agent or Firm:
HANYANG PATENT FIRM (KR)
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