国家/地区 中国（9）
IPC部 B（9） C（2） D（2）
IPC大类 B01（9） B32（2） D04（2）
IPC小类 B01D（9）
IPC B01D046/54（9）
发明人 LI J（2）
公开年 2021（9）
申请年 2020（5）  2021（4） 
专利权人

Preparing modified polylactic acid non-woven fabric involves mixing modified nanocellulose and lactic acid in water to obtain mixed dispersion, where modified nanocellulose has sulfonic acid group and hydroxyl group.

YANG C, XU J, HAO S, HE Y, TIAN J

Antistatic filter material useful in tangential flow compressed air filter device, comprises antistatic polymer, polytetrafluoroethylene resin, and graphene.

FAN Y, LI J

Composite nano-fiber filter screen, comprises a base layer compounded together, an intermediate layer and a surface layer, where the base layer is a polyethylene terephthalate (PET) base material, the middle layer is a graphene conductive layer, and the surface layer is a electret nano-fiber layer.

ZHENG J, YU H, GAO T

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

Polytetrafluoroethylene composite filter material useful for air purification by filtering bacteria and virus aerosol, comprises supporting layer and polytetrafluoroethylene microporous film layer.

XIAO P, XIAO Z, CAI C, TANG Y, LI H, SU J, XIAOPING, WEIGHT X, TSAI C, AN X J

Graphene waste gas absorbing and recycling filter, has mounting plate provided with mounting groove that is formed between central position of upper and lower side walls in groove, where mounting groove is fixedly mounted with filter film.

MA G

Slot for computer application, has shell whose top surface is provided with strip-shaped opening, and graphene film whose middle part is installed on surface of cover plate, where two ends of film are bent downwards and wound on reel through opening.

LIU L, QI H, DING H

Method of making filter with laser induced graphene (LIG), involves treating second side of sheet and treating on second side provide porosity to sheet such that sheet is capable of flowing air through LIG from first to second side.

TOUR J M, STANFORD M G, LI J, CHYAN Y, ARNUSCH C J, PRESUTTI S E, MOUSE S M, LY J, YU C, STEVEN P, LEI J

Nano fiber film air purifier filter screen, has upper pressing plate and lower pressing plate whose middle parts are pressed with filter screen, where periphery of filter screen is uniformly provided with through hole, and pressing rod inserted in through hole.

JIANG F