国家/地区 中国（6） 美国（3） 世界知识产权组织（2）
IPC部 A（8）
IPC大类 B01（8） B32（8） A61（5）
A41（3） A62（2） C08（2）
IPC小类 B01D（8）
IPC B32B005/02（8）
发明人
公开年 2021（3） 2022（2）
申请年 2021（5）  2020（2） 
专利权人

Combination of nanoparticles applied onto mask filtration system for filtering airborne pollutants comprising PM2.5 and aerosolized virus particles of severe acute respiratory syndrome-coronavirus disease, comprises graphene, titanium dioxide, zinc oxide, copper oxide, silicon dioxide, and solvent.

NAG I

Glass fiber air filter material used for purifying air in automobiles, comprises modified nonwoven fabric and glass material fiber from bottom to top, formed into composite by hot-pressing.

ZHANG Z, JIA G, YANG P

Air filter cloth for air purifying device for filtering and purifying micro-particles in air, has adsorption layer composed of transverse first aramid filament and longitudinal second filament knitted with each other.

CAO W

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

Diatom cloth with antibacterial, purifying and humidifying function comprises diatom material, activated carbon, graphene, catalyst, pore-forming agent and cloth.

HAN F, DU Z

Formation of porous graphene layer used as semipermeable membrane, involves providing catalytically active substrate comprising copper-nickel alloy substrate, to catalyze graphene formation under chemical vapor deposition conditions.

CHOI K, PARK H G, HEIGHT M, CHOI K J, PARK H, PIAO H

Air purifying negative oxygen ion releasing roof film for home decoration field, has base layer whose side surface is provided with negative oxygen ion powder layer, outer surface layer covered with graphene layer.

YU W

Air filter cloth, has HEPA layer attached with graphene material, and nanometer material layer attached to fiber material for forming filter layer, where nanometer material layer is arranged between HEPA layer and graphene material.

LIU R, ZHU S