国家/地区 中国（2）
IPC部 B（2）
IPC大类 B29（2） C08（2）
IPC小类 B29C（2）
IPC B29C070/54（2）
发明人
公开年 2023（2）
申请年 2022（2） 
专利权人

Hot-melt bisphenol-containing cyanobenzoxazine resin prepreg composite material useful for preparing hot-melt bisphenol-containing cyanobenzoxazine resin-based composite material and hot-melt bisphenol-containing cyanobenzoxazine resin.

GAO Y, ZHANG L, YIN P

Liquid ring type vacuum pump comprises e.g. pump body, pump cover fixed at two ends of the pump body respectively, disc fixed between two pump covers and pump body and impeller fixed on rotating shaft between two discs.

ZHAO X, WANG Q, LIU Y, YUE H, YU S