国家/地区 中国（3）
IPC部 B（3）
IPC大类 B65（3） B32（2）
IPC小类 B65D（3）
IPC B65D030/08（3）
发明人
公开年 2022（2）
申请年 2021（3）
专利权人

Heating portable heat preservation bag for heating, has two connecting plates close to one side of upper and lower end are fixedly connected with clamping plate.

LI X

Graphene composite packaging bag for containing and protecting food, has inner layer comprising graphene reinforcing layer and graphene antibacterial layer that are thermally bonded with adhesive layer.

LI Y

Multi-layer nonwoven fabric of bag with heat preservation function, has insulating layer that comprises glass cotton layer, sponge rubber layer and phenolic resin layer.

ZHU M