国家/地区 中国（2） 欧洲专利局（EPO）（2） 世界知识产权组织（2）
IPC部 B（4） C（2） D（2）
IPC大类 B32（4） B65（4） B31（2）
C01（2） D21（2）
IPC小类 B32B（4）
IPC B32B027/10（4）
发明人 WAHLBERG J（2）
公开年 2022（4）
申请年 2021（4）
专利权人 TETRA LAVAL .（2）

Producing oxygen barrier material for packaging material involves providing and forwarding substrate material web, providing aqueous composition comprising graphene oxide comprising monolayer flakes of graphene oxide, and coating aqueous composition of graphene oxide onto substrate material web.

BERLIN M, WAHLBERG J, GUIDETTI G

Preparing aqueous composition of reduced graphene oxide used for producing gas-barrier coated material, by providing aqueous dispersion comprising graphene oxide, providing aqueous dispersion of nanocellulose compound, providing aqueous solution of reducing agent, and mixing aqueous dispersions.

WAHLBERG J, OESTLUND M

Dry composite paper plastic zipper packaging bag comprises bag body and zipper provided on bag body, and bag body made of composite film, composite film sequentially includes e.g. biaxially oriented polypropylene layer, first adhesive layer, kraft paper layer, second adhesive layer.

HUANG Y

Producing paper packaging bag comprises impregnating inner packaging base paper layer, and outer packaging base paper layer, drying, coating impregnated inner packaging base paper layer and outer packaging base paper layer with barrier adhesive material, hot pressing and cooling.

NI H, CHEN F, YANG J