国家/地区 中国（2）
IPC部 C（3）
IPC大类 C04（3） D01（3） D06（2）
IPC小类 C04B（3）
IPC D01F001/10（3）
发明人
公开年 2023（3）
申请年 2022（3） 
专利权人

Production of carbon composite fiber used for e.g. aviation application, involves preparing spinning dope by dispersing carbon nanomaterial and polyamic acid in super acid, and imidizing preliminary fiber to obtain polyimide composite fiber.

KU B, KIM S Y, KIM S G, YOU N H, KIM J, HWANG J Y, KIM N D, KIM D, KOO B C, KIMRYAN, KIMSEOGYUN, KIM J W, DONG K, KIM D Y

Low-grade concrete mixed with stone powder comprises cement, mineral powder, fly ash, stone powder, sand, gravel, water reducing agent, and water.

LIN J, JIANG W, XU Y, ZHANG J, HUANG C, ZHONG X

High-performance polyformaldehyde fiber useful for concrete, comprises polyformaldehyde/polyamide composite fiber and graphene fiber grafted with polyformaldehyde/polyamine.

ZHANG X, SHI J, ZHAO X, LOU L, YE L, ZHANG Y