国家/地区 韩国（3） 中国（2）
IPC部 C（6）
IPC大类 C08（6）
IPC小类 C08G（6）
IPC C08G018/76（6）
发明人 HO M J（2） SEUNGGYEONG Y（2）
公开年 2022（4）
申请年 2021（3） 
专利权人 SBB CO LTD（2）

High color fastness polyurethane surface layer material comprises primer layer, elastic layer e.g. polyether polyol, hexamethylene diisocyanate trimer, polycarbonate diol, methylene diphenyl diisocyanate, triethylamine, graphene oxide, carbon nanotubes, epoxy acrylate, and spray surface layer.

JI P, SHEN Z, HAN Z

Waterproofing structure useful for repairing cracks of rooftop, underground parking lot, toilet, brick-masonry wall, and floor, comprises e.g. identifying cracks in structure, and perforating injection holes in identified crack site.

KWON S

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

Sponge for oil-water separation is prepared by reacting polyol blend with polyisocyanate and graphene, in the presence of catalyst, foaming agent, and foam stabilizer in which polyol blend contains e.g., polyol components and glycerol.

LIU Y, CHEN S

Graphene modified polyurethane insulation board comprises first cement heat cloth, graphene modified polyurethane insulation layer and the second cement heat cloth.

WANG Y, KONG X, ZHANG Z