国家/地区 中国（3）
IPC部 B（5） C（5）
IPC大类 B65（5）
IPC小类 B65D（5）
IPC C08J005/18（3） B65D065/38（2） C08K003/04（2）
C08L023/12（2） C08L067/02（2）
发明人
公开年 2020（2） 2021（2）
申请年 2019（5）
专利权人

Preparing 3-substituted 4-hydroxycoumarin compound, involves mixing 4-hydroxycoumarin derivatives with unsaturated alfa-beta-ketone, adding water, amino functional solid catalyst, heating, crystallizing viscous mass using organic solvent.

HAIDER M A, ALAM M I, AKHTAR M W, SHAHADAT M, AHMAD S Z

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

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

Production of bioplastic and graphene oxide compound used for manufacturing article for e.g. garbage bag, involves adding graphene oxide to bioplastic, and melting and homogeneously dispersing graphene oxide in bioplastic.

ROMAO VIANA O A, SANDRI E

Preparing high-toughness graphene/polyethylene terephthalate composite film, comprises e.g. reacting polyethylene terephthalate, toughening agent, nano-hydrotalcite, dispersant and aminosilane coupling agent, and extruding.

INVENTOR U