国家/地区 世界知识产权组织（2）
IPC部 C（2）
IPC大类 C01（2）
IPC小类 C01B（2）
IPC C01B032/205（2）
发明人
公开年 2023（2）
申请年 2022（2）
专利权人

Polyimide film is obtained by imidization reaction of polyamic acid containing quinoline and beta-picoline as imidation catalyst and acetic anhydride as dehydrating agent.

JUNG H, WON D, WON D Y

Process used for purification of graphite material, involves subjecting graphite material to oxidizing conditions, subjecting metal sulfide-lean graphite material to carbochlorination, and purging metal chlorides from metal chloride-rich graphite material, thus obtains purified graphite material.

BOISVERT R, BOULANGER P, BRASSARD M, DESAULNIERS E, NORVAL G, RIECKMANN P, TAN A, TAN Z