国家/地区 中国（2）
IPC部 C（2）
IPC大类 C09（2）
IPC小类 C09D（2）
IPC C09D007/65（2）
发明人
公开年 2022（2）
申请年
专利权人

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

Anti-seepage structure of sewage pipeline comprises pipelines spliced with each other and two adjacent sections of pipeline interface is arranged outside anti-seepage belt and includes waterproof mortar sealing layer and waterproof sleeve.

YUAN Y, HUANG G, XIANG S, ZHENG X, LUO J, LI X, DUAN C