国家/地区 中国（2）
IPC部 B（3）
IPC大类 B01（3） C08（3）
IPC小类 B01D（3）
IPC C08K003/04（3）
发明人
公开年 2021（2）
申请年 2021（3）
专利权人

Preparing graphene polyurethane composite sponge material useful in electronic cigarette filtration, comprises e.g. preparing modified graphene oxide dispersion, stirring with silicon-containing surfactant, stannous octoate, triethylenediamine, and toluene diisocyanate, carrying out free foaming.

HOU W, PAN D, ZHANG H, LIANG D, WANG Z

Filter used in device e.g. mask, breathing apparatus and face covering, vent cover and heating, ventilation, has polyurethane-based polymer foam comprising virucidal/bactericidal agent having cetylpyridinium chloride and/or dimethyloctadecyl(3-(trimethyloxysilyl)propyl)ammonium chloride.

RAMAPPA D A, JOGIKALMATH G

Preparing self-repairing hydrophilic porous photothermal film useful in field of photothermal water evaporation, comprises mixing polyethylene glycol, polytetrahydrofuran and dicyclohexylmethane-4,4'-diisocyanate for polymerization reaction.

LI Y, XU F, SUN J