国家/地区 中国（2）
IPC部 B（2）
IPC大类 C08（2）
IPC小类 C08G（2）
IPC
发明人 LIU S（2）
公开年 2022（2）
申请年
专利权人

Preparing multilayer polyimide film with electromagnetic shielding ability comprises e.g. paving negatively charged cobalt iron oxide modified polyimide film and positively charged silver doped graphene powder, and spraying deionized water on film to wet silver doped graphene powder.

NIU R, LIU S, CHEN H

Esterification of purified terephthalic acid and 1,4-butanediol useful for producing polybutylene adipate terephthalate, comprises adding terephthalic acid, 1,4-butanediol and polymerization degree catalyst into a reaction kettle, introducing nitrogen, and reacting.

LIU G, LIU S, XU W, GUO T, HAN Y, ZHOU B, ZHENG L, LIU Y, HAO D, WANG X, CAO F, WANG C, WANG M, LI Z, LI J, ZHAO N, SHI C, SHI R