国家/地区 中国（3）
IPC部 C（3）
IPC大类 C09（3）
IPC小类 C09D（3）
IPC C09D179/08（3）
发明人
公开年 2021（2）
申请年 2020（3）
专利权人

Black non-adhesive flexible copper-clad plate used in flexible printed circuit board, comprises copper foil sequentially, first polyimide layer comprising black filler, and second and third polyimides.

WU H, RU J, LUO H, LIANG L

Preparing graphene electric heating film containing in-situ polymerized insulating coating comprises e.g. placing graphene aqueous dispersion in suction filter device containing polytetrafluoroethylene filter membrane, and filtering.

LIU H, QIAN T, MA D

High-safety composite electric heating film comprises electric heating layer arranged between upper electrode layer and lower electrode layer, and insulating and heat-conducting discoloring body attached to lower electrode layer.

XIA Y, CAI P, ZHANG W, HUANG H, GAN Y, LIANG C, ZHANG J, HE X