国家/地区 中国（3）
IPC部 B（3）
IPC大类 C09（3） B05（2） B29（2）
C08（2）
IPC小类 C09D（3）
IPC C09D007/61（3）
发明人 LIU Z（3）
公开年 2023（2）
申请年 2022（3）
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

Preparation of organic/inorganic hybrid superhydrophobic superoleophilic antifouling coating used in oil well pipe surface, involves forming hybrid emulsion using e.g. alcohol dispersion of fluoropolymer and ceramic material, coating emulsion and partially transferring fluoropolymer.

WANG H, FU Y, LI M, REN L, ZHANG X, LIU Z