国家/地区 中国（3）
IPC部 B（4）
IPC大类 B05（4）
IPC小类 B05D（4）
IPC B05D007/24（3） C08K003/04（3） B05D001/12（2）
B05D003/02（2） B05D003/04（2） C09D007/61（2）
发明人
公开年 2023（4）
申请年 2022（4）
专利权人

Hydrophobic agent composition useful for long-life hydrogen fuel cell gas diffusion layer, comprises polytetrafluoroethylene micropowder, polypropylene powder, nano-graphene powder and polyvinyl alcohol as granulation binder.

LIN H, WANG J, ZHOU Z

Manufacture of guardrail used for inside or outside of main line rail, involves pre-treating guardrail, painting pre-treated surface of guardrail with powder coating containing weather resistant polyester resin, curing agent and curing accelerator, heat treating and drying painted guide rail.

JANG S W

Film strain sensor having wide test range and high sensitivity comprises strain film in middle layer and protective films on both sides, and prepared by e.g. adding N,N-dimethylformamide and deionized water, adding expanded graphite, placing in polytetrafluoroethylene tank and adding silver nitrate.

SHAN L, FU H

Preparing internal spiral polyvinyl chloride drainage pipe, comprises e.g. bending and spiraling steel wire, extruding, injecting into brushing mechanism, carrying out spiral groove processing, forming inner spiral groove, spraying, extruding, painting and performing preliminary drying.

LIU Z