国家/地区 中国（3）
IPC部 B（3）
IPC大类 B65（3）
IPC小类 B65D（3）
IPC C08J005/18（3）
发明人 LIU Y（3）
公开年 2022（2）
申请年
专利权人 CHINA PETROL.（2） SINOPEC BEIJ.（2）

Polyolefin heat-shrinkable film high performance film comprises e.g. intermediate layer and surface layer located on both sides of intermediate layer, graphene oxide, linear low density polyethylene resin, spherical alumina and polypropylene resin.

LIU L, LIU Y

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

Gas and moisture permeable film used in vegetable and fruit fresh-keeping package, comprises support layer and functional layer, where functional layer exists on one side of support layer or on both sides of support layer.

ZHANG Y, YIN J, ZHENG C, SONG J, TANG Y, YAO X, PAN G, LIU Y