国家/地区 中国（4）
IPC部 C（5）
IPC大类 C04（5）
IPC小类 C04B（5） C08K（5） C08L（4）
IPC C08K003/04（5）
发明人
公开年 2022（3）
申请年 2022（3） 
专利权人

Inter-floor noise prevention system of house useful for preventing noise generated in upper floor from being transmitted to the lower floor, comprises sound absorbing plate installed on concrete slab, and sound wave vibration blocking plate.

HO S J

Method for preparing resin-based ceramic friction material for use in brake pad, involves grafting polyacrylamide to the surface of the ceramic particles through a second silane coupling agent to obtain modified ceramic particles and mixing the resin matrix and the modified ceramic particles.

ZHU W, YUE J, WANG X

Preparing inorganic aerogel composite material, comprises homogeneously mixing aerogel, skeleton fibers, diatomite and vermiculite, gelling and aging to obtain gel, adding ethanol as medium, and supercritical drying.

YAO W, SHUI Y, LI T

Multi-core flexible mineral insulated fireproof cable comprises cable comprising multiple insulating wire cores, mineral insulating layer, aluminum strip and flexible sheath.

ZHENG J, ZHENG W

Terahertz source emitting material used for forming terahertz emitter for bed article, comprises quartz powder, graphite powder, tin powder, aluminum oxide, and magnesium oxide having preset particle size.

ZHANG J