国家/地区 中国（2） 世界知识产权组织（2）
IPC部 C（4）
IPC大类 C04（4）
IPC小类 C04B（4）
IPC C08L095/00（2）
发明人
公开年 2021（4）
申请年 2021（3） 
专利权人

Repairing a pothole in roadway by forming undercut cavities in the pothole wall, below a surrounding road surface, clearing debris and removing loose asphalt pieces from pothole, filling, and applying expanding polymer base binder.

YOGEV R, KENIG S

Multi-stage foam sound absorbing black material comprises polymer foam framework and continuous graphene resonant cavity attached on framework.

XU Z, LIU X, GAO C, PANG K

Graphene-based self-melting snow-melting pavement structure with shape memory function comprises heat insulation that is sequentially laid on the road surface from bottom to top layer, graphene-based conductive asphalt layer.

YAN H, WANG Y, LI Y, BAI J, JIANG Y

Concrete structure wall and floor repair method comprises cleaning and drying cracks and damaged areas generated on wall or floor of concrete structure, and applying repair material to cracks and breaks of the concrete structure.

KIM S, KIM G