国家/地区 中国（4）
IPC部 B（4）
IPC大类 B29（4）
IPC小类 B29D（4）
IPC C08L023/08（3） B29D007/01（2） B29D023/00（2）
C08K003/04（2） C08L023/06（2） C08L023/12（2）
C08L023/14（2） C08L069/00（2） C09D007/61（2）
发明人 LIU Z（4）
公开年 2023（2）
申请年 2022（2） 
专利权人

High-transparent and high-strength polyethylene heat-shrinkable film useful for packaging bottle-packed beverage, comprises e.g. first layer (comprised of low-density and metallocene polyethylene), second layer, third layer and fourth layer (comprised of high density polyethylene).

LIU Z, LI R, LIU S

Preparing internal spiral polyvinyl chloride drainage pipe, comprises e.g. bending and spiraling steel wire, extruding, injecting into brushing mechanism, carrying out spiral groove processing, forming inner spiral groove, spraying, extruding, painting and performing preliminary drying.

LIU Z

Preparing flexible packaging film used for power lithium batteries comprises extruding inner film base materials and polyamide, coating nano-titanium dioxide on aluminum foil base film, melting, controlling thickness of film, compounding.

HU W, ZHOU Z, LI W, REN F, WU L, ZHANG W, XU F, LIU Z, ZHANG D, GUO H

High-oxygen barrier property high-strength polyolefin heat conduction pipe comprises polyolefin resin, graphene slice layers, compatibilizer, and antioxidant.

CHEN G, FU J, LI S, LIU Z, LI C, LI D, TAO S, CHEN Y