国家/地区 中国（5） 美国（2） 世界知识产权组织（2）
IPC部 B（6）
IPC大类 B01（6）
IPC小类 B32B（6）
IPC B32B009/00（5） B32B009/04（5） B01D039/16（2）
B01D046/00（2） B32B005/02（2） B32B005/26（2）
B32B027/32（2） C01B032/198（2）
发明人
公开年 2021（6）
申请年 2021（6）
专利权人

Large area graphene-based seawater desalination film comprises support layer and composite interlayer structural unit, where composite interlayer structural unit is sequentially provided with porous graphene layer, graphene oxide layer and porous graphene layer from bottom to top.

QING F, HOU Y, LI X

Laminated porous ceramic filtering material used for purifying high temperature coal gas, comprises first, second, third, fourth porous ceramic material layers arranged in sequence.

LIU J, BI C, YANG X, ZHANG J, LU Y, YUN K

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 graphene oxide aerogel comprises e.g. preparing first solution containing modified cotton fibers and graphene oxide and second solution containing nano tourmaline, mixing the prepared solutions, dispersing, introducing clean air into dispersed solution, adding alkali and freeze-drying.

WANG J, WANG B

Face mask e.g. surgical face mask, comprises mask component to cover wearer's mouth and nose, and fastener engaging with mask component comprising air-permeable outer layer, inner layer located on inner side of mask component, and graphene layer, where fastener connects mask component to wearer.

ZHAMU A, JANG B Z, ZHANG B

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

HAN F, DU Z