国家/地区 中国（10）
IPC部 B（10） D（6） A（4）
C（3）
IPC大类 B01（10） D04（4） A41（3）
A62（3） C03（2） D01（2）
D06（2）
IPC小类 B01D（10）
IPC B01D039/08（10）
发明人 CESAREO G G（2） RIZZI L G（2）
公开年 2021（7） 2022（3）
申请年 2021（10）
专利权人 DIRECTA PLUS.（2）

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

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

Textile article, useful in a filter for personal health protection, comprises a textile substrate having specific bacterial filtration efficiency, where the textile article comprises graphene dispersed in a polymeric binder.

CESAREO G G, RIZZI L G

Increasing an electrical and/or thermal conductivity, as well as filtering power and germ-blocking properties of textile article by preparing impregnation composition consisting of graphene, polymeric binder and wetting agent, and stirring.

CESAREO G G, RIZZI L G

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

Preparing a graphene oxide antibacterial modified high-strength melt blown non-woven filter cloth comprises e.g. adding 4,4' methylenebis(phenyl isocyanate) and 2-Amino-4-hydroxy-6-methylpyrimidine into a three-necked flask and heating.

LV L, XUE D, YANG X

Preparing high-strength corrosion-resistant industrial filter cloth comprises e.g. adding polyethylene terephthalate polyester slice, reinforcing particles, corrosion resistant particles and plasticizer into extruder, melting and extruding.

WANG Y, JIA J, WANG W, ZHAO K

Multilayer meltblown nonwoven fabric is composed of upper layer of meltblown nonwoven fabric, intermediate layer of meltblown nonwoven fabric, and lower layer of meltblown nonwoven fabric.

LI S, WU S, HUANG Y, TAN Y, FENG Z, LI X, XIE Z