国家/地区 中国（6）
IPC部 B（8）
IPC大类 B01（8）
IPC小类 D01D（8） B01D（7） D01F（4）
D04H（4） A41D（2） A62B（2）
IPC D01D005/00（8）
发明人
公开年 2022（8）
申请年 2022（6）  2021（2） 
专利权人

Self-cleaning filter used as mask, comprises heating fiber containing heating carbon component.

KIM S, JUNG H J, JAE C H

Producing filter bag based on high temperature resistant material comprises preparing spinning solution containing e.g. lithium chloride, dimethylacetamide and graphene oxide, injecting spinning solution into electrostatic spinning machine, and sewing film-coated filter material into bag shape.

LU D, LU X

Preparing sulfonic acid solid acid catalyst useful for preparing lactose, comprises e.g. adding hydroxide as acid center metal to water dispersion system, converting hydroxide of metal, soaking composite skeleton after cooling in concentrated sulfuric acid, filtering product, and drying.

HUANG Q, CHEN Z, JIANG X

Preparing electrospinning nanofiber in filter material field, involves electrospinning the spinning solution, where spinning solution includes polymer, solvent and photothermal agent, and using laser to heat the jet, where polymer is flexible high molecular polymer, elastic high molecular polymer.

ZHENG J, HUO Y, YU H, GAO T, JIAO S, SHI Y

Preparing renewable antibacterial effect degradable nanofiber mask filter core comprises preparing graphene oxide-halamine composite antibacterial nanofiber membrane, and combining with substrate prepared from polylactic acid ultra-diluted spinning solution, and ultrasonic compounding.

HE J, SHAO W, LI X, ZHANG J, SU X, LI B, ZHAO X

Preparing graphene-quaternary ammonium salt modified polyacrylonitrile composite fiber filter film in clothes, carbon fiber raw material, hemodialysis and other fields, involves adding graphene oxide to N,N-dimethylformamide solvent, stirring and dispersing, adding pyromellitic anhydride.

ZHANG X, WU J

Bismuth-based photo-thermal conversion nanofiber material used for seawater desalination, wastewater treatment, and rapid evaporation of solvents, comprises ferric oxide-graphene sulfide nanoparticle, and polyvinylpyrrolidone as substrate.

FAN T, ZHANG Y, FENG Z, YANG W

Filter material, useful in face mask and/or respirator, comprises electrospun nanofiber membrane and active nanomaterial agent incorporated into the membrane, where the membrane filters disease-causing agents.

HASAN S W, MAVUKKANDY M