国家/地区 中国（3） 世界知识产权组织（2）
IPC部 A（5）
IPC大类 B01（5） A61（2） C08（2）
IPC小类 B01D（5）
IPC B01D071/02（5）
发明人
公开年 2022（5）
申请年 2021（3）  2020（2） 
专利权人

Flexible composite film material for use in composite membrane roll material with air purification function, comprises base film, and functional coating compounded on base film, where functional coating includes activated carbon and graphene, gas absorbent, binder and solvent.

JIANG T, MA J, WANG S

Portable cosmetic liquid spraying device for beauty directly applied to skin has filtration membrane that is installed on injection pipe of nozzle unit to allow air to pass through but not to allow liquid substances to pass at room temperature and atmosph.

CHAE S W, PAIK H D

Mop cleaning bucket for rinsing and de-drying clean water by circulating and filtering sewage, has water column for drawing water from water purification area to clean mop cloth to form sewage that flows to water outlet through inclined surface.

WU C

Preparing intelligent self-repairing interface surface material, comprises e.g. grinding metal or oxide to obtain modifier, rinsing and removing suspended particles, precipitating, filtering, and drying to obtain composite nano-modifier, loading on base surface, performing immobilization treatment.

ZHU W, MA W

Graphene nanocomposite polymeric membrane used as air filtration membrane in high-performance masks and air purifiers, comprises sulfur-doped amine-functionalized silver-linked reduced graphene oxide.

BARDIYA V