国家/地区 中国（4）
IPC部 B（4）
IPC大类 B32（4） C08（4） C09（4）
B29（3） B65（2）
IPC小类 B32B（4）
IPC B32B027/08（4）
发明人
公开年 2023（4）
申请年 2022（2） 
专利权人

Production process of solarization-resistant wine packaging box comprises molding injection-molded plastic wine packaging box for polishing, coating ultraviolet resistance coating, drying, treating, and subjecting plastic wine packaging box for ultraviolet laser printing trademark pattern.

WANG H, MA X

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

High ductility and high temperature resistant composite food packaging film useful for food packaging or food preserving, comprises modified composite film layer which is base modified film layer, maleic anhydride graft polyethylene resin film middle layer and polyethylene outer film layer.

CHEN C

Preparing foam with gradient pore structure used in preparing heat-insulating and anti-icing material, involves mixing foaming agent, curing agent and water, under uniform stirring, and curing under vacuum condition, where foaming agent is polyurethane foaming agent.

YUAN X, SHENG L, ZHAN F