国家/地区 中国（4）
IPC部 B（4） C（4）
IPC大类 B29（4）
IPC小类 B29D（4）
IPC B29D007/01（2）
发明人
公开年 2022（4）
申请年 2022（3） 
专利权人

Preparing graphene liquid metal composite silica gel pad involves adding graphene oxide and gallium-based alloy liquid metal to water at a certain mass ratio, adding an acid solution and using ultrasonic stirring to obtain a graphene liquid metal aqueous dispersion.

PAN Z, ZHOU M

Modified polyethylene wearable composite pipe for water supply and drainage of municipal and building, has glass fiber line that is provided with multiple layers on outer layer pipe structure, inner tube body and outer layer pipe body fixedly connected with the inner layer pipe body.

LIN J

Pod-type degradable temporary plugging ball useful in temporary plugging treatment of oil and gas wells in fracturing system, comprises degradable outer shell (comprising e.g. polymerized product of glycolide, lactide, polybutylene succinate prepolymer) and inner core.

LI H, ZHANG Y, SHANG L, HUANG B, LIU J, WANG Y, YANG X, JIANG Q

Preparing completely biodegradable wrapping film used for packaging goods e.g. electronics, comprises uniformly mixing materials required for supporting layer and adhesive layer, extruding and granulating, and passing supporting and adhesive modified material layers by three-layer co-extrusion.

ZHEN W, ZHENG H