国家/地区 中国（3）
IPC部 B（3）
IPC大类 B32（3）
IPC小类 B32B（3）
IPC B32B027/02（3）
发明人
公开年 2022（2）
申请年 2022（2） 
专利权人

Graphene filter film comprises first non-woven fabric layer, graphene layer and second non-woven fabric layer arranged in sequentially, where each layer is embedded with each other at connection position.

JU Y, YI J, WANG W, WANG D

Laminated structure hollow micro-nano fiber non-woven material useful in e.g. field of cold protection and heat preservation, comprises upper surface layer, lower surface layer, and middle layer arranged between upper and lower layers, which are hollow nano-fiber layer with dense fibers stacked.

ZHANG W, GE J, XIE D, SHAN H, FU Q

Preparing ultra-high molecular weight polyethylene fiber material comprises preparing polyethylene multi-layer fiber, extracting and stretching polyethylene multilayer fiber, compounding with low molecular weight polyethylene and ultra-high molecular weight polyethylene fiber.

HONG W, SHEN X, HU Y, ZHAO W, FENG L, XIA J, LI Z