国家/地区 中国（17） 世界知识产权组织（4） 美国（3） 欧洲专利局（EPO）（2）
IPC部 B（23） C（13）
IPC大类 B01（23） C02（10） C07（2）
IPC小类 B01D（23）
IPC B01D071/34（23）
发明人 LI W（2） LIU H（2） WANG M（2）
WANG Y（2）
公开年 2022（23）
申请年 2022（14）  2021（7）  2020（2） 
专利权人

Preparing dual-drive type super-hydrophilic photothermal film comprises performing primary heat pressing super-hydrophilic photo-thermal conversion nanofiber film to improve integrity, folding, and performing secondary heat-pressing and shaping.

HONG Y, SUN W, ZHANG G, CAO J, ZHU T, LIU D

Hydrophobic and lipophilic film with photothermal and electrothermal effect used in oil-water separation, comprises middle layer film, upper layer film and lower layer film arranged on both sides of middle layer film, where intermediate film is polyvinylidene fluoride film.

CHEN Z, WU Y, XIE H, SU X, WU W, ZHOU J, LI K

In-liquid substance separation membrane molded body comprises lamellar particles comprising quaternary ammonium ion and anion surfactant which has ammonium ion.

NAKAGAWA K, SHINTANI T, YOSHIOKA T, KITAGAWA H, TAKAKUMA N

Continuous preparation of polyvinylidene fluoride hollow fiber film for e.g. textile, involves soaking hollow fiber membrane obtained by using polyvinylidene fluoride, rigid polymer, nanomaterial as inorganic additive and water-soluble polyethylene oxide, in water, shaking and washing.

XUE H, WANG C, WANG Q, CHEN K, WANG M, XIAO C, JI D

Membrane bioreactor wastewater processing system comprises anoxic tank for removing nitrogen in wastewater, and coagulation tank injecting coagulant into supernatant water introduced from second space portion of anaerobic tank.

JEONG S, JOSUNGKUN, LEE C, LEE J, CHOI J W

Preparing nano-filtration purifying membrane for emergency drinking, comprises mixing polyvinylidene fluoride, dopamine hydrochloride, polyethyleneimine, quaternized polyethyleneimined and dimethyl acetamide and reacting.

ZHAO L, JIANG W, ZHANG S, KANG P, GU L, XU M

Membrane separation system comprises membrane module, and membrane positioned within membrane module, where membrane includes immobilized nanocarbon on membrane surface and within pores to define nanocarbon-immobilized membrane.

PAUL S, ROY S, MITRA S

Hydrophobic polyvinylidene fluoride-graphene oxide nano fiber film used for membrane distillation process, comprises polyethylidene diene fluoride nano fiber film obtained by electrostatic spinning method, and reducing graphene oxide nano particles.

JIN W, JI W, GAO K, LIU G

Preparation of film useful for photothermal film distillation device, involves e.g. uniformly dripping Tris solution containing dopamine hydrochloride on hydrophobic polyvinylidene fluoride film, placing in vacuum suction filter bottle, adding graphene oxide-thiourea solution, and suction-filtering.

WANG Y, LIU H, HU Z, LI W

Preparing graphene oxide-titanium dioxide/poly(vinylidene fluoride) composite ultrafiltration membrane comprises e.g. preparing different graphene oxide-titanium dioxide nanocomposites, dispersing it in dimethylacetamide, stirring with poly(vinylidene fluoride) and polyethylene glycol, and casting.

WANG M, YANG B, LIU H, XU H, YUE Q, JI X