国家/地区 中国（2）
IPC部 C（2） H（2）
IPC大类 C25（2）
IPC小类 C25D（2）
IPC C25D007/00（2）
发明人
公开年
申请年 2022（2）
专利权人

Coating solution useful for hole metallization of printed circuit board, comprises edge modified graphene, high molecular polymer, condensing agent, surface energy auxiliary agent, super dispersant, water and pH regulator comprising aqueous ammonia or sodium carbonate solution.

JING W, LI B, LI R, LI F, WU Q, PAN G

Preparing negative charge oxidation graphene, comprises adding concentrated sulfuric acid in reaction container, adding graphite powder, persulfate and phosphorus oxide, and adding concentrated sulfuric acid into graphite solution.

SONG T, CHEN W, PAN Z, LIU Z