国家/地区 韩国（2）
IPC部 C（3） E（2）
IPC大类 C04（3） C08（2） E01（2）
IPC小类 C04B（3）
IPC C04B111/00（3）
发明人 HO M J（2） SEUNGGYEONG Y（2）
公开年 2022（3）
申请年 2021（3）
专利权人 SBB CO LTD（2）

Water-permeable block comprises e.g. porous structure having honeycomb structure and filler to be filled in empty space of porous structure, includes gravel and bio-urethane-based adhesive containing polymeric methylenediphenyl diisocyanate.

HO M J, SEUNGGYEONG Y

Water-permeable block comprises e.g. gravel and bio-urethane-based adhesive containing first agent comprising polymeric methylenediphenyl diisocyanate and isocyanate monomer and second agent comprising petroleum polyether polyol.

HO M J, SEUNGGYEONG Y

Electromagnetic wave absorption structure comprises electromagnetic wave composite absorbing layer, where electromagnetic wave composite absorbing layer comprises conductive composite layer and insulating layer, and insulating layer is stacked and overlapped with conductive composite layer.

WU F