国家/地区 中国（3） 美国（2）
IPC部 C（4）
IPC大类 C04（4） C09（2） E01（2）
E04（2）
IPC小类 C04B（4）
IPC C04B111/52（4）
发明人
公开年 2021（3）
申请年 2021（4）
专利权人

Polyester fiber carbon neutralizing sound absorbing plate comprises a polyester fiber sound absorbing plate base body (polyester fiber, and nano carbon material, acetylene black, carbon nano-tube and graphene oxide).

ZHANG H, ZHOU T, WU S

Thermal energy-transfer system such as grade beam, comprises thermally conductive concrete comprising carbon, metals and/or conductive polymers, aggregate and cement and having preset compressive strength, and pipes, tubes and capillaries.

GUARRERO B P

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

Preparation of three-dimensionally printed cement noise reduction barrier involves preparing reinforced composite cement slurry using e.g. quartz sand, feeding into feed system for layer-by-layer printing, and assembling.

YUAN F