国家/地区
IPC部 C（3）
IPC大类 C04（3）
IPC小类 C04B（3）
IPC C04B028/02（3）
发明人
公开年 2023（2）
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

Cementitious sealer for waterproofing surface, and protecting cementitious substrates from deterioration, preferably brick, masonry, ceramics, stones, and concrete foundation, comprises hydrophobic sealer layer, and nanomaterials and another nanomaterials coupled to hydrophobic sealer layer.

SHI X, LI Z

Cement base fluorine-containing copolymer emulsion useful for preparation of superhydrophobic concrete comprises fluorine-containing monomer e.g. perfluorononylethylene, alkyl acrylates and/or alkyl methacrylates, nonionic and/or anionic surfactants, silica, titania and/or graphene oxide, and water.

ZHANG B, JIANG Z