国家/地区 中国（6） 世界知识产权组织（2）
IPC部 B（8） D（5） A（2）
C（2）
IPC大类 B01（8） D06（3）
IPC小类 B01D（8）
IPC B01D039/08（8）
发明人 LI Z（2）
公开年 2022（8）
申请年 2021（4）  2022（4） 
专利权人

Graphene-layer fibre filter cloth comprises an inner filter layer, a middle monofilament layer, an outer filter layer, an interlayer fixing line and a double-cotton fibre warp, and the inner filtering layer is a fibre layer formed by blending high-molecular polypropylene fibers.

TU A, YANG J

Face mask for use as personal protective equipment, comprises layer comprising surface-functionalized graphene particles having specified sulfur impurity level, manganese level, and/or nitrogen oxide level.

PROMNIMIT A

High-strength industrial filter cloth comprises base cloth and filter layer, where filter layer is located between two layers of base cloth, industrial filter cloth is base cloth, drying to obtain product, filter layer comprises matrix resin, polytetrafluoroethylene and polyphenylene sulfide.

MEI B, CONG B

Filter element useful for manufacturing air conditioning units for a motor vehicle, comprises a textile substrate comprising woven fabric and nonwoven fabric, and a composition comprising graphene.

RIZZI L G, CESAREO G G

Preparing high-performance anti-peeling modified filter cloth useful for vacuum filter, comprises e.g. dispersing amphoteric polymer modifier and nanoparticles in deionized water, ultrasonically treating nanoparticles to uniformly disperse, and soaking into polyvinylidene fluoride solution.

WANG H, TIAN J, LI M, YAO Z, LI J, ZHANG T, LIU Z, ZHAO L, ZHAO T, ZHEN Z, LI R, LI Z, SHI X, XIE D, WANG S, LI S, RONG H, HAN H, CHEN L, WANG Z, CHENG C, ZHANG G, TIAN X, YAO B

Processing polytetrafluoroethylene emulsion modified complex filter material useful in e.g. filter device comprises e.g. using glass fiber, polyphenylsulfone terephthalamide fiber and polyimide fiber, carding, complexing dust-facing surface with microfiber layer, drying, singeing and baking.

WANG D, SHI Z

Preparing graphene composite antiviral powder and antibacterial and antiviral air filter material, comprises e.g. preparing reduced graphene oxide suspension, mixing with mixed activating stock solution of palladium chloride, tin chloride and hypo chlorous acid and centrifuging.

LI Z, RAN W, ZHANG C, XU R

Antibacterial antiviral melt-blown cloth used as core material of mask, comprises base layer, where upper end face of base layer is provided with first filter layer, and lower end face is provided second filter layer.

FENG D, PENG H, LI B