国家/地区 中国（5）
IPC部 B（5）
IPC大类 B29（5）
IPC小类 B32B（5）
IPC B32B027/32（5）
发明人
公开年 2023（2）
申请年
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

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

Propylene polymer based composite film useful in packaging material has different layers comprising propylene polymer and propylene impact copolymer, propylene impact copolymer having elastic part forms dispersed strip-shaped rubber phase.

XU M, ZHANG S, GAO D, BAI Y, XU K, REN Y, LIU J, QUAN H, DONG M, ZHANG Q, CHOU B, LYU Y, SHAO J, LV Y, RUNWAY, BAIGER C, LIU Y

High barrier and corrosion resistant lithium battery packaging film comprises a nylon layer, an aluminum foil layer, and a heat-sealing layer, outer graphene layer, an inner graphene layer, and a silicone rubber layer.

SHAO Z

Preparation of food packaging plastic sheet involves spraying mixture of graphene dispersed in molten aluminum metal on surfaces of ethylene-vinyl alcohol/polyamide substrate, quenching, fixing and forming barrier coating on substrate.

CHEN Q, ZAN H