国家/地区 中国（2）
IPC部 A（2）
IPC大类 A41（2）
IPC小类 A41D（2）
IPC
发明人
公开年 2021（2）
申请年 2021（2）
专利权人

Face mask e.g. surgical face mask, comprises mask component to cover wearer's mouth and nose, and fastener engaging with mask component comprising air-permeable outer layer, inner layer located on inner side of mask component, and graphene layer, where fastener connects mask component to wearer.

ZHAMU A, JANG B Z, ZHANG B

Polyvinylidene dichloride (PVDC) high-barrier co-extruded self-adhesive film used for military protection and dust prevention, comprises outer layer, adhesive layer, PVDC layer, another adhesive layer, inner layer, and another inner layer.

YANG Y