国家/地区 世界知识产权组织（3） 欧洲专利局（EPO）（2）
IPC部 B（3）
IPC大类 B65（3）
IPC小类 C01B（3）
IPC C01B032/18（3）
发明人 WAHLBERG J（2）
公开年 2022（2）
申请年 2021（2） 
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

Film-forming apparatus for forming graphene film on film-forming target e.g. metallic foil, has roll-to-roll mechanism which provides tensile force relaxation unit that relaxes tensile force applied to transported film-forming target.

KOBAYASHI T, SHIMIZU K, KADONO K, MIZUGUCHI Y, MURAKAMI Y, MIZUKUCHI Y, SUMINO K