国家/地区 中国（2）
IPC部 B（3）
IPC大类 B05（3）
IPC小类 B05B（3）
IPC B05D003/04（2） B05D007/24（2）
发明人
公开年 2023（3）
申请年 2022（2） 
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

Preparing and depositing electromagnetic absorber spray foam on electronic equipment, involves providing isocyanate resin selected such that blending the isocyanate resin with the polyol blend results in electromagnetic absorber spray foam.

COCCHINI M, DOYLE M, BENEFIELD S B, CAMPBELL E J, CONNOR S R

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